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3.7V to 5V/9V/12V 2A Boost/Buck Lithium Battery Charger and Discharger with Adjustable Voltage 3.7V to 5V/9V/12V 2A Boost/Buck Lithium Battery Charger and Discharger with Adjustable Voltage 1.Description:   1>.Up to 1A programmable linear charging current   2>.Used for a single 3.7V lithium battery, fully charged with 4.2V   3>.Constant current/constant voltage charging with over temperature pr... $2.79
$3.99
SKU: GY21036-1
$2.79
$3.99

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3A Boost Buck Charging Module for 2/3/4-Cell Batteries 3A Boost Buck Charging Module for 2/3/4-Cell Batteries 1.Description:   1>.Support 1-4 series of lithium-ion batteries   2>.Resistance adjustment of charging current (input and battery terminals)   3>.3A maximum charging current   4>.Resistance regulat... $5.59
$7.99
SKU: GY21035-1
$5.59
$7.99

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3.7V 4.2V to 5V 18650 Lithium Battery Charging Module USB Boost Board Mobile Power Board DIY 3.7V 4.2V to 5V 18650 Lithium Battery Charging Module USB Boost Board Mobile Power Board DIY 1.Description:   1>.Ultra small size, almost all mobile power supply enclosures can be easily installed   2>.Support lithium battery undervoltage protection and output short circuit protection   3>.Ultra low... $3.75
$5.35
SKU: GY21042-1
$3.75
$5.35

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2A 5V Lithium Battery Charging Boosting Module with Protection Board TYPE-C Battery Charging Power Step Up Module 2A 5V Lithium Battery Charging Boosting Module with Protection Board TYPE-C Battery Charging Power Step Up Module 1.Description:   1>.Small volume and high power   2>.With double layer charging and discharging protection   3>.5V automatic switching between charging and discharging   4>.Maximum 3.1A output curr... $3.91
$5.59
SKU: GY21034-1
$3.91
$5.59

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Positive And Negative DC Regulated Power Supply DIY Electronic Kit, 3 Terminal Regulated 9V Dual Power Module Assembly Kits Positive And Negative DC Regulated Power Supply DIY Electronic Kit, 3 Terminal Regulated 9V Dual Power Module Assembly Kits 1.Description:    It is a Positive and Negative DC Regulated Power Supply DIY Electronic kit, 3 Terminal Regulated 9V Dual Power Board Module.   2.Key points for installing the stabilizer block:   1>... $6.99
$9.99
SKU: GY21032-1
$6.99
$9.99

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Gate Circuit Combinational Logic Circuit Analysis Assembly Testing DIY Kits Gate Circuit Combinational Logic Circuit Analysis Assembly Testing DIY Kits 1.Description:    The main function of the kit is to analyze, assemble, and test gate circuits and combinational logic circuits. It can be used for vocational college skill training, skill assessment, vocational single enro... $10.49
$14.99
SKU: GY21031-1
$10.49
$14.99

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DIY Imitate Glow Tube Clock Kit Full Color RGB Glow Tube Clock DIY Imitate Glow Tube Clock Kit Full Color RGB Glow Tube Clock     $31.49
$44.99
SKU: GY21027-1
$31.49
$44.99

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DIY Hearing Aid Electronic Kit Amplifier Circuit Experimentation Soldering Assembly and Hands-On Learning DIY Hearing Aid Electronic Kit Amplifier Circuit Experimentation Soldering Assembly and Hands-On Learning 1.Description:    Hearing aid is also called deafness hearing hearing is composed of microphone,front low amplifier,power amplifier circuit and other parts,this kit combines the circuit and the actual situation design and p... $2.51
$3.59
SKU: GY21030-1
$2.51
$3.59

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DC 5V Motorcycle Anti-theft Vibration Alarm Circuit DIY Kit DC 5V Motorcycle Anti-theft Vibration Alarm Circuit DIY Kit 1.Description:    This is a motorcycle anti-theft vibration alarm circuit composed of CD4801, which can effectively prevent your motorcycle from being stolen. Whenever someone tries to move your vehicle or start the motorcy... $2.79
$3.99
SKU: GY21021-1
$2.79
$3.99

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DIY Kit Flame Fire Monitoring And Detection Module Automatic Alarm Household Fire Protection System DIY Electronic Kit DIY Kit Flame Fire Monitoring And Detection Module Automatic Alarm Household Fire Protection System DIY Electronic Kit 1.Description:    The circuit uses an infrared receiving diode as the sensor for flame detection. It is powered by a 5V DC voltage and can be tested by simulating a warehouse fire with a lighter at a distance of 30cm above ... $2.79
$3.99
SKU: GY21020-1
$2.79
$3.99

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30 Segment Audio Rhythm Dual Color LED Light Kit, Music Spectrum Volume Level Indicator Electronic DIY Kit 30 Segment Audio Rhythm Dual Color LED Light Kit, Music Spectrum Volume Level Indicator Electronic DIY Kit 1.Description:   1>.It can automatically adjust the brightness and color according to the rhythm of the sound, enhancing the atmosphere of the music scene.   2>.It can adjust the rhythm high and low to adapt to di... $8.39
$11.99
SKU: GY21028-1
$8.39
$11.99

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DIY LED Desk Lamp Kit with 12V Lighting - Electronic Circuit Board Soldering Practice DIY LED Desk Lamp Kit with 12V Lighting - Electronic Circuit Board Soldering Practice 1.Description:   1>.High-brightness LED, provides sufficient illumination for a comfortable and efficient work or study experience.   2>.Low power consumption, saves on electricity costs while making usage more en... $4.19
$5.99
SKU: GY21029-1
$4.19
$5.99

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Intelligent Automatic Watering System Science Experiment DIY Humidity Sensor STEM Kit Intelligent Automatic Watering System Science Experiment DIY Humidity Sensor STEM Kit 1.Description:   After this automatic watering system is powered on, it will determine whether to pump water to water the flowers based on the signal returned by the soil moisture sensor. During use, the LED light will go out in... $11.89
$16.99
SKU: GY21025-1
$11.89
$16.99

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Intelligent Human Body Induction Fan Sensor Learning DIY Kits for Primary and Secondary School Students Scientific Experimental Teaching Intelligent Human Body Induction Fan Sensor Learning DIY Kits for Primary and Secondary School Students Scientific Experimental Teaching 1.Description:   This human body sensing fan automatically turns on the fan when the human body sensing module senses someone. When a person leaves the human body sensing module, the fan will automatic shutdown, very intelligent... $5.95
$8.50
SKU: GY21024-1
$5.95
$8.50

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DIY Kit Power Amplifier Speaker Sound Protection Circuit Board Startup Delay DC Detection Electronic DIY Kits DIY Kit Power Amplifier Speaker Sound Protection Circuit Board Startup Delay DC Detection Electronic DIY Kits 1.Description:    The horn protection board has the functions of power on delay (about 3 seconds) and DC protection (starting voltage is about 1V). The board circuit is simple, easy to make, and job security and reliable to... $4.19
$5.99
SKU: GY21023-1
$4.19
$5.99

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DIY Kit Mono TDA7293 7294 Amplifier AC12-36V Subwoofer High-power Amplifier Board DIY Kit Mono TDA7293 7294 Amplifier AC12-36V Subwoofer High-power Amplifier Board 1.Description:    The circuit is a standard circuit, stable and reliable.    The filtering adopts a voltage withstand voltage of 50V and a capacity of 2200uf large electrolysis.    Power supply v... $5.59
$7.99
SKU: GY21022-1
$5.59
$7.99

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Infrared Induction Switch DIY Kit Automatic Hand Dryer Faucet Control Module Infrared Induction Switch DIY Kit Automatic Hand Dryer Faucet Control Module 1.Description:    This kit includes an infrared proximity switch, automatic hand dryer, and automatic faucet control module, all equipped with high-precision sensors for non-contact automatic sensing. The automatic hand dry... $4.19
$5.99
SKU: GY21019-1
$4.19
$5.99

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8 Channel Water Running Lamp DIY Electronic Kit SMD Practice Kits for Soldering Skill Trainning Learning 8 Channel Water Running Lamp DIY Electronic Kit SMD Practice Kits for Soldering Skill Trainning Learning 1.Description:    8-channel sequential extinguishing flow light effect, adjustable speed, eye-catching visual effect.    The circuit uses CD4060 as the oscillation and frequency division control component, whi... $3.91
$5.59
SKU: GY21018-1
$3.91
$5.59

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AC 110V Motor Forward Reverse Controller 16A Motor Drive Module AC 100V 220V Limit Switch AC 110V Motor Forward Reverse Controller 16A Motor Drive Module AC 100V 220V Limit Switch 1.Description:   It is a motor forward and reverse controller.It can control the forward and reverse rotation of the single-phase AC motor,and the signal input can be connected to the sensor/MCU/PLC/switch. 2.Feature:  ... $7.69
$10.99
SKU: GY20639
$7.69
$10.99

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DC 12V 5-Channel Self-locking Relay Module 5Bit 10A High/Low Level Trigger Select Switch Controller DC 12V 5-Channel Self-locking Relay Module 5Bit 10A High/Low Level Trigger Select Switch Controller 1.Description:   It is a latching relay module.It has 5 relay channels and can connect 5 loads. 2.Feature:   1).The self-locking relay module has a power indicator and a working indicator,and the working status of the ... $11.99 SKU: GY20640
$11.99

DC 3.5-16V 5.8GHz Microwave Radar Active Induction Sensor Module DC 3.5-16V 5.8GHz Microwave Radar Active Induction Sensor Module 1.Description:     1>.High sensitivity and long sensing distance;   2>.Reliable and wide sensing angle;   3>.Wide power supply voltage range;   4>.Adopting planar antenna for transmission and ... $4.19
$5.99
SKU: GY21000-1
$4.19
$5.99

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8M Recordable Voice Play Module, Button Control Sound Module With Volume Adjustment and USB Data Cable For DIY Music Gift Box Greeting Card 8M Recordable Voice Play Module, Button Control Sound Module With Volume Adjustment and USB Data Cable For DIY Music Gift Box Greeting Card Product Introduction: 1.Power Supply Voltage:4.5-5V or 3.7V lithium battery; Output 0.5-1W 2.Capacity:8M 3.Board Size: 30X30mm 4.Speaker Diameter:m36mm 5.Memory Card Slot:Micro SDXC 6.Supported forma... $6.99
$9.99
SKU: GY18094
$6.99
$9.99

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DV 5V USB Mini Humidifier Mini Oscillating Atomizer Mist Maker Driver Circuit Board DV 5V USB Mini Humidifier Mini Oscillating Atomizer Mist Maker Driver Circuit Board 1.Description:   1>.5V USB ultrasonic mist maker driver board and atomizer plate.   2>.Low driving voltage, low power, low impedance, stable waveform, high conversion efficiency.   3>.Round ring atomizer pla... $4.19
$5.99
SKU: GY20995-1
$4.19
$5.99

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Waterproof 0.56inch DC Digital Voltage Meter, DC5-130V LED Battery Volt Meter Gauge Voltage Display for Golf Cart Car, Cars, Boats Waterproof 0.56inch DC Digital Voltage Meter, DC5-130V LED Battery Volt Meter Gauge Voltage Display for Golf Cart Car, Cars, Boats 1.Description: It is a DC5-130V Waterproof Battery Voltage Meter. Its biggest feature is the use of internal injection molding design to achieve waterproof purposes, which is that it can penetrate water for a long time for use. 2.... $3.25
$6.50
SKU: GY21015-1
$3.25
$6.50

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FM Bluetooth-Compatible Audio Receiver MP3 Decoder Lossless AUX/U-disk/TF Card Music Player FM Bluetooth-Compatible Audio Receiver MP3 Decoder Lossless AUX/U-disk/TF Card Music Player 1.Description:   It is a FM Bluetooth Audio Receiver MP3 Lossless Decoder which perfect for DIY wireless Bluetooth speakers and transponders. This module can receive Bluetooth music, as well as FM/AUX/USB/TF card audio input. Th... $12.45
$17.79
SKU: GY21014-1
$12.45
$17.79

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DIY Kit for Liquid Level Controller with Water Tank Level Detection and Automatic Pumping Module - Electronic Soldering Skill Practice Kits DIY Kit for Liquid Level Controller with Water Tank Level Detection and Automatic Pumping Module - Electronic Soldering Skill Practice Kits 1.Description:   1>.Accurate water level detection;   2>.Effective protection from external conditions;   3>.Programmable control strategies;   4>.Multiple protection functions;   5>.Auto... $4.55
$6.50
SKU: GY20992-1
$4.55
$6.50

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433MHz Wireless Module HW3000 RF Module SPI Interface SI4432 CMT2300 Serial Transceiver 433MHz Wireless Module HW3000 RF Module SPI Interface SI4432 CMT2300 Serial Transceiver 1.Description:   1>.Communication distance of 1000 meters;   2>.Small volume;   3>.Can replace ordinary 433MHz modules;   4>.Support FSK and GFSK modulation modes;   5>.Support automatic ... $4.19
$5.99
SKU: GY21011-1
$4.19
$5.99

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RC522 RFID IC Card Reader Writer Module 13.56MHz 3.3V SPI Module RC522 RFID IC Card Reader Writer Module 13.56MHz 3.3V SPI Module 1.Description:   1>.Adopting RC522 low voltage, small size non-contact read and write card chip;   2>.Can support Mifare1 S50, Mifare1 S70, Mifare Light, Mifare UltraLight, and Mifare Pro;   3>.Can be direct... $2.50
$4.99
SKU: GY21008-1
$2.50
$4.99

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GT-U7 GPS Module Navigation Satellite Positioning Compatible with NEO-6M 51 MCU STM32 GT-U7 GPS Module Navigation Satellite Positioning Compatible with NEO-6M 51 MCU STM32 1.Description:   1>.Equipped with a USB interface, you can directly use your phone's data cable to view the positioning effect on the computer;   2>.USB direct connection to the computer, which means the upper com... $9.09
$12.99
SKU: GY21007-1
$9.09
$12.99

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DIY Kit Music Audio Spectrum Indicator AUX MIC Peak Hold Voice Control Level Light LM3914 Electronic Soldering Practice Kits DIY Kit Music Audio Spectrum Indicator AUX MIC Peak Hold Voice Control Level Light LM3914 Electronic Soldering Practice Kits 1.Introduction: FED-301K is a Audio Spectrum Indicator DIY Kit. It can display in Red/Green according to the input audio signal from microphone or AUX audio socket.It can be used to display the intensity of audio.The number of LED disp... $6.99
$9.99
SKU: GY21012-1
$6.99
$9.99

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OCL Amplifier DIY Kits 100w Dual Channel Stereo Sound Amplifier Board OCL Amplifier DIY Kits 100w Dual Channel Stereo Sound Amplifier Board 1.Description:    This OCL high power 100W dual channel amplifier board welding kit comes with 4 high power transistors and two independent stereo channels.    OCL circuit is highly stable and has wide frequency r... $5.59
$7.99
SKU: GY20987-1
$5.59
$7.99

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Green LED Power Indicator DIY Kit Battery Electricity Display Kits Green LED Power Indicator DIY Kit Battery Electricity Display Kits 1.Description:   1>.It has high precision LM3914 analog voltage detection, users can accurately know the remaining battery power.   2>.The power display range is adjustable, and the display range can be adjusted accor... $2.79
$3.99
SKU: GY20994-1
$2.79
$3.99

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DIY Kit LM317 Adjustable Voltage Regulator With LED Meter DIY Kit LM317 Adjustable Voltage Regulator With LED Meter 1.Description:   1>.LM317 adjustable DC voltage regulator diy kit with fixed three-terminal voltage regulation circuit, easy to use;   2>.Wide voltage adjustment range, good voltage stabilization performance, low nois... $6.29
$8.99
SKU: GY20986-1
$6.29
$8.99

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DIY Kit Bluetooth-Compatible Amplifier, 87.0-108.0MHz FM Radio Receiver Kit, U-disk/TF Card Music Player Module with Battery DIY Kit Bluetooth-Compatible Amplifier, 87.0-108.0MHz FM Radio Receiver Kit, U-disk/TF Card Music Player Module with Battery 1.Introduction:   It is an 87.0MHz-108.0MHz Wireless FM Radio Receiver DIY Kit with Red/Green spectrum indicator flashing automatically.   It has a blue 4Bit segment display screen which can clearly display the receivi... $25.89
$36.99
SKU: GY20924-2
$25.89
$36.99

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DC 24V 100dB Electronic Alarm with Strob Red Light, High Decibel Electronic Beep Buzzer for Car Alarm Home Security System DC 24V 100dB Electronic Alarm with Strob Red Light, High Decibel Electronic Beep Buzzer for Car Alarm Home Security System Description:   BJ-3 is a DC 24V 100dB Audible Visual Alarm. It works as Red Flashing and High Decibel Buzzer after power ON. It can be used for on-site audible and flashing alarms. Features:   Loud Sound Alarm Wit... $4.19
$5.99
SKU: GY20964-1
$4.19
$5.99

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2PCS Buzzer Alarm with Strobe Red LED Light, DC 24V Strobe Siren Piezo Buzzer, 100dB Electronic Beep Buzzer for Car Alarm Home Security 2PCS Buzzer Alarm with Strobe Red LED Light, DC 24V Strobe Siren Piezo Buzzer, 100dB Electronic Beep Buzzer for Car Alarm Home Security Description:   BJ-3 is a DC 24V 100dB Audible Visual Alarm. It works as Red Flashing and High Decibel Buzzer after power ON. It can be used for on-site audible and flashing alarms. Features:   Loud Sound Alarm Wit... $6.29
$8.99
SKU: GY20964-2
$6.29
$8.99

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DC 5-60V ESP32 Single Channel Wireless WIFI Relay Module ESP32-WROOM Development Board DC 5-60V ESP32 Single Channel Wireless WIFI Relay Module ESP32-WROOM Development Board 1.Description:    DC powered ESP32 single-channel relay development board equipped with ESP32-WROOM-32EWiFi&BLE mode Blocks, I/O ports are all led out, and support DC5-60V power supply mode. It is suitable for ESP32 secon... $9.37
$13.39
SKU: GY20985-1
$9.37
$13.39

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8 Channel ESP8266 Wireless WIFI Relay Module ESP-12F Development Board 8 Channel ESP8266 Wireless WIFI Relay Module ESP-12F Development Board 1.Description:    This ESP8266 WIFI 8-Channel Relay Module ESP-12F Development Board is perfect for Arduino development environment with reference code and is suitable for ESP8266 secondary development and learning, smart hom... $13.29
$18.99
SKU: GY20984-1
$13.29
$18.99

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ESP8266 WIFI 4 Channel Relay Module ESP-12F Development Board ESP8266 WIFI 4 Channel Relay Module ESP-12F Development Board 1.Description:   This ESP8266 WIFI 4-Channel Relay Module is an ideal choice for home automation system. It supports WiFi connection, enabling you to control your appliances or devices remotely. It can be used to switch on/off lig... $9.79
$13.99
SKU: GY20982-1
$9.79
$13.99

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ESP-12F ESP8266 Serial Wireless WIFI Module ESP-12F ESP8266 Serial Wireless WIFI Module 1.Description:   The ESP-12F is a powerful and versatile module, with a wide range of applications. It can be used to create wireless networks, build smart homes, and enable the transmission of data between a variety of devices. I... $3.91
$5.59
SKU: GY20981-1
$3.91
$5.59

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ESP32-WROOM-32UE 16MB Dual Core WiFi Wireless Bluetooth-Compatible MCU Module ESP32-WROOM-32UE 16MB Dual Core WiFi Wireless Bluetooth-Compatible MCU Module 1.Description:    ESP32-WROOM-32UE is a powerful dual-core Wi-Fi & Bluetooth MCU module for IoT applications. It features low power consumption, high performance and wide range of usage. It is ideal for tasks such as audi... $6.29
$8.99
SKU: GY20979-1
$6.29
$8.99

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ESP32 TYPE-C USB CH340C WiFi Bluetooth-Compatible Ultra-Low Power Dual Core Development Board ESP32 TYPE-C USB CH340C WiFi Bluetooth-Compatible Ultra-Low Power Dual Core Development Board 1.Description:    ESP32 CH340C is a general-purpose WI-FI+BT module with low power consumption Bluetooth and WiFi, widely applicable, integrated SPI flash, and support for wide range wireless communication connection. It also... $5.59
$7.99
SKU: GY20978-1
$5.59
$7.99

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ESP32 Type-C USB WiFi Bluetooth-Compatible ESP-WROOM-32 Development Board ESP32 Type-C USB WiFi Bluetooth-Compatible ESP-WROOM-32 Development Board 1.Description:    ESP32-WROOM-32 is a general-purpose WI-FI+BT+BLEMCU module with low power consumption Bluetooth and WiFi, widely applicable, integrated SPI flash, and support for wide range wireless communication connection... $6.29
$8.99
SKU: GY20977-1
$6.29
$8.99

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ESP32 Development Board Wireless WiFi Bluetooth-Compatible 2-in-1 Dual Core CPU ESP32 Module ESP32 Development Board Wireless WiFi Bluetooth-Compatible 2-in-1 Dual Core CPU ESP32 Module 1.Description:   MINI KIT ESP32 Module Development Board is a powerful dual-core CPU, wireless WiFi & Bluetooth 2 in 1 development board, enabling a wide range of applications such as IoT, industrial control, smart home, and s... $5.95
$8.50
SKU: GY20976-1
$5.95
$8.50

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DIY Kit Dimming Table Lamp Circuit Board, Unidirectional Thyristor Temperature Control Speed Regulation Electronic Kits DIY Kit Dimming Table Lamp Circuit Board, Unidirectional Thyristor Temperature Control Speed Regulation Electronic Kits 1.Description:    This DIY Dimmer Kit is a great product for both beginners and experienced electricians alike. It contains everything you need to build your own dimmer switch for your lights.  The temperature and speed ... $2.09
$2.99
SKU: GY20975-1
$2.09
$2.99

31

DIY Kit Light Control Photosensitive Sensor Switch for Beginners Learning Soldering DIY Kit Light Control Photosensitive Sensor Switch for Beginners Learning Soldering 1.Description:   Experience the fun of electronics with our Light Control Photosensitive Sensor Switch DIY Kit! Perfect for beginners learning to solder, this kit includes all the necessary components for building a fully function... $2.09
$2.99
SKU: GY20974-1
$2.09
$2.99

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DIY Kit Capacitor Three Point Oscillation Circuit DIY Kit Capacitor Three Point Oscillation Circuit 1.Description:     This DIY kit provides an excellent learning opportunity for electronics enthusiasts and students. It enables you to build a three-point oscillation circuit by connecting capacitors, resistors, and transisto... $3.75
$5.35
SKU: GY20973-1
$3.75
$5.35

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DS1302 DIY Rotating LED Clock Kit with Temperature and Light Control, 4-Digit Display DS1302 DIY Rotating LED Clock Kit with Temperature and Light Control, 4-Digit Display 1.Description:   Our 4-Digit LED Clock Temperature Controller DIY Kit is the perfect addition to any home or office. With its automatic brightness adjustment, alarm clock function, and memory retention for power outages, you can r... $7.55
$10.79
SKU: GY20969-1
$7.55
$10.79

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DIY Power Outage Alarm Kits Power Off Alarm Electronic Soldering Practice Kit DIY Power Outage Alarm Kits Power Off Alarm Electronic Soldering Practice Kit Description: Are you worried about unexpected power outages damaging your equipment? This power outage alarm kit can help. It is easy to assemble and features both an alarm circuit and a city power monitoring circuit. The LED on the bo... $4.05
$5.79
SKU: GY20968-1
$4.05
$5.79

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51 Single-chip Microcomputer Traffic Light DIY Kit Intelligent Signal Lamp Electronic Soldering Training Practice kits 51 Single-chip Microcomputer Traffic Light DIY Kit Intelligent Signal Lamp Electronic Soldering Training Practice kits Description:   Take control of traffic lights with this easy-to-use DIY kit! Featuring a countdown timer and sound prompt, you can manually control red, green, and yellow lights with three included light-emitting diodes. No progra... $5.59
$7.99
SKU: GY20967-1
$5.59
$7.99

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SMD Component Soldering Practice Board with 555 and CD4017 ICs DIY LED Water Lamp Kit SMD Component Soldering Practice Board with 555 and CD4017 ICs DIY LED Water Lamp Kit Description:   1.Perfect your soldering skills with this SMD practice board DIY kit. Made with high-strength, fire-proof, and anti-fall materials, this kit is easy to assemble and disassemble for repeated use. With separate practi... $2.79
$3.99
SKU: GY20966-1
$2.79
$3.99

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DC 5V Single Digit DIY Electronic Counter Kits for Soldering Learning Practice School Teaching Training DC 5V Single Digit DIY Electronic Counter Kits for Soldering Learning Practice School Teaching Training 1.Description:   The Counter Electronic Kit is designed for easy installation and operation, allowing you to quickly understand the basic principles of digital counter. The kit comes with a detailed and comprehensive instruction... $4.89
$6.99
SKU: GY20972-1
$4.89
$6.99

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Bluetooth-Compatible Audio Amplifier Electronic Kits, Portable DIY Speaker Kits With Acrylic Shell for School Home Education Electronic Soldering Practice Learning Bluetooth-Compatible Audio Amplifier Electronic Kits, Portable DIY Speaker Kits With Acrylic Shell for School Home Education Electronic Soldering Practice Learning 1.Description:    Looking for a fun and educational project to build your own Bluetooth speaker? Our DIY kit includes everything you need to create a high-quality sound system, including an electronic amplifier and acrylic ... $6.99
$9.99
SKU: GY20971-1
$6.99
$9.99

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Gradient LED Water Flowing Lamp DIY Electronic Kit Fun LED Light Soldering Practice Kits Gradient LED Water Flowing Lamp DIY Electronic Kit Fun LED Light Soldering Practice Kits 1.Description:   1>.Create an impressive lighting display with this RGB LED flow light kit. Its circular design and adjustable speed make it perfect for adding an eye-catching effect to any space.   2>.This LED flow... $4.45
$6.35
SKU: GY20970-1
$4.45
$6.35

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Ultrasonic Suspension DIY Kit DC 12V Mini Acoustic Levitator Electronic Soldering Learning DIY Kits Ultrasonic Suspension DIY Kit DC 12V Mini Acoustic Levitator Electronic Soldering Learning DIY Kits 1.Introduction:   It is a DC 12V Ultrasonic Suspension Electronic Soldering DIY Kit. The suspending device operates at a frequency of 40KHZ in the air and can capture light objects with a density of 2-3MM, such as foam balls. It i... $5.59
$7.99
SKU: GY20962-1
$5.59
$7.99

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DC 12V 24V 100W TWS Bluetooth-Compatible Amplifier TPA3116 Audio Amplifier Module AUX USB Audio Input DC 12V 24V 100W TWS Bluetooth-Compatible Amplifier TPA3116 Audio Amplifier Module AUX USB Audio Input 1.Description:   ZK-1001B is a DC 12V 24V 100W TWS Bluetooth Amplifier Audio Module, perfect for DIY wireless Bluetooth speakers and transponders. This module can receive Bluetooth music, as well as AUX/USB audio input.  It a... $11.19
$15.99
SKU: GY20961-1
$11.19
$15.99

31

DIY Kit NE555 8-Channel Digital Responder CD4511 8Bit Answering Board for Soldering Practice DIY Kit NE555 8-Channel Digital Responder CD4511 8Bit Answering Board for Soldering Practice 1.Description:   This is an 8-way answering kit with 9 keys, 8 answering numbers, and 1 answering reset. After powering on, the nixie tube displays 0 to start answering. Which of the 8 keys was pressed first, the nixie tube immedi... $4.19
$5.99
SKU: GY20959-1
$4.19
$5.99

31

DIY Kit Voice Control Lamp LED Melody Light DIY Electronic Kits DIY Kit Voice Control Lamp LED Melody Light DIY Electronic Kits 1.Description:   The voice controlled LED melody light circuit consists of a power supply circuit, a microphone amplification circuit, and an LED light emitting indicator circuit. The power supply is input by J1, and C1 filtering ... $2.09
$2.99
SKU: GY20958-1
$2.09
$2.99

31

DIY Kit NE555 CD4017 LED Electronic Light Red Blue Dual Color LED Strobe Flashing Light Electronic Kits DIY Kit NE555 CD4017 LED Electronic Light Red Blue Dual Color LED Strobe Flashing Light Electronic Kits 1.Description:   This kit uses NE555 and CD4017 chips to form an analog alarm light circuit. The blue LED and red LED flash alternately according to the pulse, and the flash frequency can be adjusted by adjusting RP1. The working ... $2.09
$2.99
SKU: GY20957-1
$2.09
$2.99

31

DIY Kits Intensive Pin SMD Soldering Practice Board Water Lamp Analog Circuit Electronic Kits SMT Skill Practice DIY Kits Intensive Pin SMD Soldering Practice Board Water Lamp Analog Circuit Electronic Kits SMT Skill Practice 1.Description:   This is a dense pin full chip welding exercise board DIY welding kit flow light, dedicated for training in four new technologies. After welding, the LED rotates clockwise and turns on in turn. Chip IC welding is f... $3.50
$6.99
SKU: GY20954-1
$3.50
$6.99

50

4 Channel Responder DIY Kit Four Person Responder Electronic Soldering Practice Kits 4 Channel Responder DIY Kit Four Person Responder Electronic Soldering Practice Kits 1.Description:   This is a 4-way preemptive answering fun welding kit that can simultaneously perform 4-way preemptive answering. S1-S4 is the preemptive answering key, and S0 is the reset key. After any one of the power on select... $3.14
$4.49
SKU: GY20953-1
$3.14
$4.49

31

DC 5V DIY Kit Music Box 16 Kinds Vioce Electronic Soldering Practice Learning Kits DC 5V DIY Kit Music Box 16 Kinds Vioce Electronic Soldering Practice Learning Kits 1.Description:   This is a DIY kit for fun fabrication and assembly of music boxes, which can emit 16 interesting analog sound effects under your control. It is both an electronic kit and can be used as a doorbell or alarm. The co... $3.91
$5.59
SKU: GY20952-1
$3.91
$5.59

30

DIY Kit LED Circular Lamp DC 5V LED Light Electronic Soldering Practice Kits for Beginners DIY Kit LED Circular Lamp DC 5V LED Light Electronic Soldering Practice Kits for Beginners 1.Description:   This circuit is a blessing ring drive circuit composed of three triodes. Whenever the power is turned on, the three triodes will strive to be turned on first. However, due to differences in components, only one tr... $2.09
$2.99
SKU: GY20951-1
$2.09
$2.99

31

DIY Kit FM Radio Bluetooth-Compatible Amplifier, LED Spectrum Bluetooth Audio Speaker 3W+3W, U-disk TF Card Music Player Remote Control Electronic Soldering Kits DIY Kit FM Radio Bluetooth-Compatible Amplifier, LED Spectrum Bluetooth Audio Speaker 3W+3W, U-disk TF Card Music Player Remote Control Electronic Soldering Kits 1.Introduction:   It is a pink/blue/green LED Spectrum FM Bluetooth Audio Speaker DIY Kit with Infrared Remote Control.   It play music from FM/Bluetooth/U-disk/TF Card with 3W 4ohm speakers, which bring a clear and loud so... $17.49
$24.99
SKU: GY20950-1
$17.49
$24.99

30

DIY Kit Electronic Lucky Wheel Sweepstakes DC 3V Lucky Turntable DIY Soldering Practice Kits DIY Kit Electronic Lucky Wheel Sweepstakes DC 3V Lucky Turntable DIY Soldering Practice Kits 1.Description:   TJ-56-10 is a Lucky Wheel Sweepstakes Electronic Soldering DIY Kit.   It can simulate the working state of the lucky wheel very realistically. As the lucky wheel starts, the LED will flash automatically in ... $2.79
$3.99
SKU: GY20943-1
$2.79
$3.99

30

DIY Heart Shape 3 Colors LED Flashing Light, LED Electronic Soldering Kits for Beginners, Bikes Electric Car Taillights DIY DIY Heart Shape 3 Colors LED Flashing Light, LED Electronic Soldering Kits for Beginners, Bikes Electric Car Taillights DIY 1.Description:   It is a Heart-shaped Flashing Lamp Electronic Soldering DIY Kit. It consists of 18 RGB LED divided into 3 groups.   The three groups of LED are lit in turn after being installed alternately, thus forming... $3.28
$4.69
SKU: GY20947-1
$3.28
$4.69

31

DIY Kit LM358 Breathing Lamp Blue LED Blinking Light Electronic Soldering Practice Kits DIY Kit LM358 Breathing Lamp Blue LED Blinking Light Electronic Soldering Practice Kits 1.Description:   The function of LM358 breathing light is that the LED changes gradually from light to dark under the control of the circuit, and then from dark to light, which feels like breathing.   It is widely used i... $3.14
$4.49
SKU: GY20946-1
$3.14
$4.49

31

DIY LED Electronic Clock Kits, 0.56 inch 4-Digit Temperature Alarm Clock Kits for STEM Projects Learn Soldering DIY LED Electronic Clock Kits, 0.56 inch 4-Digit Temperature Alarm Clock Kits for STEM Projects Learn Soldering 1.Description:   This is a DIY soldering practice project. After completing the soldering and assembly, you will get a cool clock/small alarm clock.The electronic clock has an alarm function. You can set the alarm timing for hours... $8.05
$11.50
SKU: GY20948-1
$8.05
$11.50

30

DIY Kit Light Control Water Flowing Lamp LED Night Cycle Analog Circuit Electronic Soldering Kits DIY Kit Light Control Water Flowing Lamp LED Night Cycle Analog Circuit Electronic Soldering Kits 1.Description:   This kit is a water lamp circuit that is controlled and activated according to the light intensity. When the color of the day is dark or the photosensitive resistor is in a dark environment, the six LED lights on ... $4.19
$5.99
SKU: GY20944-1
$4.19
$5.99

31

DIY Kit C51 Microcomputer Heart Shaped Colorful LED Flashing Light Electronic Projects Soldering Practice DIY Kit C51 Microcomputer Heart Shaped Colorful LED Flashing Light Electronic Projects Soldering Practice 1.Description:   32 colorful LEDS are under the control of the single-chip microcomputer programwhich pin of the single-chip microcomputer outputs low level, the corresponding LED is lit, and each LED can be programmed to light up... $6.57
$9.39
SKU: GY20942-1
$6.57
$9.39

30

Electronic Dice DIY Kits, Fun LED Lucky Dice Electronic Soldering Teaching Practice Kits Electronic Dice DIY Kits, Fun LED Lucky Dice Electronic Soldering Teaching Practice Kits 1.Description:   When the machine is powered on, the seven LEDs will display a random number of points. The player presses the switch S1, and the seven LEDs will all light up. After a few seconds, the seven LEDs will start to flas... $3.49
$4.99
SKU: GY20941-1
$3.49
$4.99

31

DIY Light Control Music Heart Shape LED Light Electronic Kits for Beginners DIY Light Control Music Heart Shape LED Light Electronic Kits for Beginners 1.Description:   This product is a new type of light-controlled music lamp kit.  It is a single-junction transistor controllable desk lamp. It is a teaching component and suitable for beginners to learn and practice soldering... $4.19
$5.99
SKU: GY20940-1
$4.19
$5.99

31

DIY Kit DS3231 LCD Temperature Display Perpetual Calendar Alarm Clock, DC 5V Electronic Clock Soldering Practice Kits DIY Kit DS3231 LCD Temperature Display Perpetual Calendar Alarm Clock, DC 5V Electronic Clock Soldering Practice Kits 1.Description:   This electronic kit uses high-precision clock chip DS3231 for timing, the time is accurate, and the annual error is within 1 minute. With backup battery, it can maintain the running time after power failure to ens... $12.59
$17.99
SKU: GY20939-1
$12.59
$17.99

30

DC 7-28V Modbus RTU Network Relay Module W5500 Ethernet LAN Controller DC 7-28V Modbus RTU Network Relay Module W5500 Ethernet LAN Controller 1.Description:     Modbus RTU Network Relay Module W5500 Ethernet LAN Controller equipped with mature and stable 32-bit MCU and W5500 all-hardware TCP/IP protocol stack network chip. Reserved MCU debugging interface to s... $29.99 SKU: GY20821-1
$29.99

DC 5V Servo Motor Tester Servo 3-gear Indicator Manual Automatic Reset Controller DC 5V Servo Motor Tester Servo 3-gear Indicator Manual Automatic Reset Controller 1.Description:    It is a DC 5V Servo Motor Tester Servo 3-gear Indicator Manual/Automatic/Reset Controller. 2.Feature:   1>.Supports three working modes   2>.Support anti-reverse connection circuit ... $3.49
$4.99
SKU: GY20820-1
$3.49
$4.99

31

DC 5V-24V 5A LED Driver 0-100% Stepless PWM Dimmer Module 5000mA Switch Circuit Control Board DC 5V-24V 5A LED Driver 0-100% Stepless PWM Dimmer Module 5000mA Switch Circuit Control Board 1.Description:    It is a DC 5V-24V 5A LED Driver 0-100% Stepless PWM Dimmer Module 5000mA Switch Circuit Control Board. 2.Feature:   1>.Supports input reverse connection protection   2>.Supports no o... $4.68
$6.69
SKU: GY20813-1
$4.68
$6.69

31

USB Touch Table Lamp Dimmer LED Driver 0-100% Stepless Dimmer 5V Charging Circuit USB Touch Table Lamp Dimmer LED Driver 0-100% Stepless Dimmer 5V Charging Circuit 1.Description:    It is a USB Touch Table Lamp Dimmer LED Driver 0-100% Stepless Dimmer 5V Charging Circuit, 2.Feature:   1>.Dimming smooth eye protection without screen flash;   2>.Capacitive touch s... $4.89
$6.99
SKU: GY20814-1
$4.89
$6.99

31

DC Motor Driver 50A Motor Forward Rreverse 200KHz PWM MOSFET H-bridge Drive Module DC Motor Driver 50A Motor Forward Rreverse 200KHz PWM MOSFET H-bridge Drive Module 1.Description:    This driver adopts a full H-bridge driver module composed of a full-bridge driver chip and MOSFET, which has extremely low internal resistance and high current characteristics. The MOSFET H-bridge drive circ... $8.05
$11.50
SKU: GY20762-1
$8.05
$11.50

30

DC-DC 8A Power Supply Step Down Module CVCC 10V-70V to 5V-58V Buck Voltage Converter DC-DC 8A Power Supply Step Down Module CVCC 10V-70V to 5V-58V Buck Voltage Converter 1.Description:   It is a DC-DC 8A Power Supply Step Down Module CVCC 10V-70V to 5V-58V Buck Voltage Converter. 2.Feature:   1>.The high thermal conductivity aluminum substrate adjustment meter is convenient for the ... $12.59
$17.99
SKU: GY20757-1
$12.59
$17.99

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120V 50A 2.4 Inch Color Screen Voltage Current Capacity Energy Power Meter for RV Car Battery Coulomb Counter 120V 50A 2.4 Inch Color Screen Voltage Current Capacity Energy Power Meter for RV Car Battery Coulomb Counter 1.Description:    VAH9810S is a multi-function meter, which can display various physical parameters such as voltage, real-time current, peak current, real-time power, peak power, capacity, usage time, etc. in real time, and t... $34.29
$48.99
SKU: GY20711-1
$34.29
$48.99

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