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Battery Voltage Monitor, DC 12V Low Voltage Disconnect Switch Over Charge Discharge Controller Protection Board for DC 0-99.9V Lead Acid Lithium Battery Battery Voltage Monitor, DC 12V Low Voltage Disconnect Switch Over Charge Discharge Controller Protection Board for DC 0-99.9V Lead Acid Lithium Battery 1.Description:    It is a DC 0-99.9V Battery Charge Discharge Voltage Monitor. It can input voltage from DC 0-99.9V Battery with relay switch output which can controller DC or AC various equipment. It can set battery discharg... $5.59
$7.99 SKU: GY21059-1
$5.59
$7.99
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DIY Kit RDA5807 FM Radio, Dual Channel 87-108MHz Radio Receiver Kits with 0.5W Speaker for Electronic Soldering Practice and Learning DIY Kit RDA5807 FM Radio, Dual Channel 87-108MHz Radio Receiver Kits with 0.5W Speaker for Electronic Soldering Practice and Learning 1.Introduction:   It is a 3.0V RDA5807 87MHz-108MHz FM Radio Receiver DIY Kit. It is a simple FM receiver and can be used all over the world with power by AA*2 battery. It is very suitable for users to learn electronic circuits, p... $8.39
$11.99 SKU: GY21106-1
$8.39
$11.99
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DC8-30V Battery Capacity Monitor with Voltage Display, 2-USB Port Voltage and Power Display Meter, Suitable for Car/Boats/Electric Bicycle DC8-30V Battery Capacity Monitor with Voltage Display, 2-USB Port Voltage and Power Display Meter, Suitable for Car/Boats/Electric Bicycle 1.Description:   It is a DC8-30V Battery Capacity Monitor with USB/Voltage Display which can supports Lithium iron phosphate battery, lead acid battery and ternary lithium battery, also can support multiple batteries in series. ... $4.89
$6.99 SKU: GY21104-1
$4.89
$6.99
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L298N Driver Module, 4-Channel Motor Driving Board, Intelligent Smart Car Motor Drive Board L298N Driver Module, 4-Channel Motor Driving Board, Intelligent Smart Car Motor Drive Board 1.Description:    The 4-Channel L298N Motor Driver Module integrates two L298N chips and can simultaneously drive four DC motors, allowing control over motor direction and speed. The module includes an LM2596S voltage regulat... $6.99
$9.99 SKU: GY21057-1
$6.99
$9.99
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8-Channel 817 Optocoupler Voltage Isolation Board Voltage Control Converter Photoelectric Isolation Module 8-Channel 817 Optocoupler Voltage Isolation Board Voltage Control Converter Photoelectric Isolation Module 1.Description:   1>.The module has strong anti-interference capability and opto-isolation, making it suitable for driving high-power transistors.   2>.Jumper Cap Can Achieve Output Port Is High POtential Or Pull Down ... $2.79
$3.99 SKU: GY21047-1
$2.79
$3.99
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DIY Wooden Radio Kit, FM 88-108Mhz Radio with Battery Assembly Kit, STEM Kits for School Student Learning Teaching DIY Wooden Radio Kit, FM 88-108Mhz Radio with Battery Assembly Kit, STEM Kits for School Student Learning Teaching Description: 【SIMPLE ASSEMBLY】This kit doesn't require soldering!! The FM module is already soldered, you only need to assemble the battery, antenna, speaker and wooden cases. If you are a beginner or like to build projects, this r... $12.59
$17.99 SKU: GY21088-1
$12.59
$17.99
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DIY Infrared Remote Control Car Kit, C51 Microcontroller Electronic Assembly and Soldering DIY Kits DIY Infrared Remote Control Car Kit, C51 Microcontroller Electronic Assembly and Soldering DIY Kits 1.Introduction:   D2-4 is a Infrared Remote Control Intelligent Car DIY Kit. Users can control various operating states of the smart car through an infrared remote control, such as forward, turns left, turns right, stop, and also ... $6.69
$9.99 SKU: GY21099-1
$6.69
$9.99
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DIY Kit Voice Recorder, 60Second Recording Playback Sound Board, Handmade Wooden Assembly Kits DIY Kit Voice Recorder, 60Second Recording Playback Sound Board, Handmade Wooden Assembly Kits 1.Introduction: It is a Handmade DIY Wooden 60seconds Voice Recorder Kit. It uses a wooden casing to create a very primitive voice recorder/player. It can play sound/music from recorded music with the 3W 4ohm speaker produce clear and ... $10.49
$14.99 SKU: GY21105-1
$10.49
$14.99
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DIY Kit FM Radio Module, Adjustable 76-108MHz Wireless Receiver LCD Display, DC 5V FM Digital Radio Electronic Soldering Kits DIY Kit FM Radio Module, Adjustable 76-108MHz Wireless Receiver LCD Display, DC 5V FM Digital Radio Electronic Soldering Kits 1.Introduction: It is an 76.0MHz-108.0MHz Wireless FM Radio Receiver DIY Kit. It has a built-in high-definition display LCD display screen which can clearly display the receiving frequency and it can store 22 radio stations, which is e... $15.39
$21.99 SKU: GY21098-1
$15.39
$21.99
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Electromagnetic Transmitter DIY Kits, Mini Shooting Game Electronic Soldering Practice Kit for School Science Education Project Electromagnetic Transmitter DIY Kits, Mini Shooting Game Electronic Soldering Practice Kit for School Science Education Project Description:   【About the Finished Project】The diy electronic project is a DC 6V High Voltage Electromagnetic Transmitter Kit. It can simulate an electromagnetic transmitter and convert electrical energy into magnetic en... $17.49
$24.99 SKU: GY20965-1
$17.49
$24.99
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4-Channel 817 Optocoupler Voltage Isolation Board Voltage Control Converter Photoelectric Isolation Modules 4-Channel 817 Optocoupler Voltage Isolation Board Voltage Control Converter Photoelectric Isolation Modules 1.Description:   1>.The module has strong anti-interference capability and opto-isolation, making it suitable for driving high-power transistors.   2>.Jumper Cap Can Achieve Output Port Is High POtential Or Pull Down ... $2.09
$2.99 SKU: GY21046-1
$2.09
$2.99
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DIY Wooden Earth Moon Sun Model Kits, Puzzle Assembly Toy and STEM Education Science Experiment Kit for Children DIY Wooden Earth Moon Sun Model Kits, Puzzle Assembly Toy and STEM Education Science Experiment Kit for Children 1.Description:    The Earth-Moon-Sun Motion Demonstration Model is a simple three-sphere model that vividly depicts the relative motion between the Earth, Moon, and Sun. Children can manipulate the Earth, Moon, and Sun in the... $4.55
$6.50 SKU: GY21093-1
$4.55
$6.50
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DC 5V Portable USB LED Night Light, Simple SMD LED Lamp DIY Kit for Beginners DC 5V Portable USB LED Night Light, Simple SMD LED Lamp DIY Kit for Beginners 1.Description:   1>.Use high-brightness, efficient LEDs with low power consumption to save energy.   2>.Each LED bead is designed to be connected in parallel independently.   3>.Transparent casing protects t... $2.37
$3.39 SKU: GY21090-1
$2.37
$3.39
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Wooden Science DIY Kits, Electric Fluttering Butterfly for Children's STEM Education with Gear-Driven Mechanical Technology Wooden Science DIY Kits, Electric Fluttering Butterfly for Children's STEM Education with Gear-Driven Mechanical Technology 1.Description:      This small creation utilizes gears and linkages, employing two connecting rods—one end attached to the wings and the other end connected to a gear. By harnessing the power of a motor to rot... $6.99
$9.99 SKU: GY21094-1
$6.99
$9.99
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DC 5V 4-Digit Electronic Clock DIY Kit, STC11FO4E Microcontroller Electronic Circuit Board for Soldering Practice and Learning DC 5V 4-Digit Electronic Clock DIY Kit, STC11FO4E Microcontroller Electronic Circuit Board for Soldering Practice and Learning 1.Description:    This kit uses the STC11FO4E microcontroller, which is a single-clock/machine cycle (1T) microcontroller produced by STC. This microcontroller is compatible with the instruction set of traditional 8051 microc... $4.89
$6.99 SKU: GY21091-1
$4.89
$6.99
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DIY Colorful Star-Shaped Light Handmade Science Experiment STEM Education Kits DIY Colorful Star-Shaped Light Handmade Science Experiment STEM Education Kits 1.Description:       Dazzling star lights are a type of decoration that has a certain beautifying effect on both outdoor and indoor environments. In the urban streets or green spaces we see, this type of ligh... $6.29
$8.99 SKU: GY21096-1
$6.29
$8.99
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4WD Racing Car DIY Kits for Primary and Secondary School Students STEM Eduction, Hands-on Assembly Science Experiment Kits 4WD Racing Car DIY Kits for Primary and Secondary School Students STEM Eduction, Hands-on Assembly Science Experiment Kits 1.Description:    This is a racing car model that features a cool appearance, high manufacturing quality, and fast driving speed. It provides an opportunity for children to develop their hands-on skills and nurtures their cur... $6.29
$8.99 SKU: GY21095-1
$6.29
$8.99
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24V 4 Channel Relay Module Switch Optocoupler Fully Isolated Microcontroller PLC Amplification 24V 4 Channel Relay Module Switch Optocoupler Fully Isolated Microcontroller PLC Amplification 1.Description:   It is a 24V 4 Channel Relay Module/Switch Optocoupler Fully Isolated Microcontroller PLC Amplification. 2.Parameter:   1>.Power supply: 24V   2>.Static current: 0mA   3>.Single c... $5.99
$7.99 SKU: GY21084-1
$5.99
$7.99
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24V 2 Channel Relay Module Switch Optocoupler Fully Isolated Microcontroller PLC Amplification 24V 2 Channel Relay Module Switch Optocoupler Fully Isolated Microcontroller PLC Amplification 1.Description:   It is a 24V 2 Channel Relay Module/Switch Optocoupler Fully Isolated Microcontroller PLC Amplification. 2.Parameter:   1>.Power supply: 24V   2>.Static current: 0mA   3>.Single c... $3.74
$4.99 SKU: GY21083-1
$3.74
$4.99
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12V 1 Channel Relay Module/Switch Optocoupler Fully Isolated Microcontroller PLC Amplification 12V 1 Channel Relay Module/Switch Optocoupler Fully Isolated Microcontroller PLC Amplification 1.Description:   It is a 12V 1 Channel Relay Module/Switch Optocoupler Fully Isolated Microcontroller PLC Amplification. 2.Parameter:   1>.Power supply: 12V   2>.Static current: 0mA   3>.Single c... $2.69
$3.59 SKU: GY21082-1
$2.69
$3.59
 25

5V Delay Relay Module with Edge-Triggered Control and Loop Cycle for Seamless Switching 5V Delay Relay Module with Edge-Triggered Control and Loop Cycle for Seamless Switching 1.Description:    It is a 5V Delay Relay Module with Edge-Triggered Control and Loop Cycle for Seamless Switching 2.Parameter:   1>.Power supply: DC 5V   2>.Input signal: High-level (PNP), Low-level (... $8.24
$10.99 SKU: GY21080-1
$8.24
$10.99
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SMD LED Microcontroller Flashing Light DIY Kit, DC 5V Heart Shaped Red LED Electronic Soldering Practice Kit SMD LED Microcontroller Flashing Light DIY Kit, DC 5V Heart Shaped Red LED Electronic Soldering Practice Kit 1.Description:    This kit consists of a combination of 32 LEDs that emit multi state cyclic flashing light. Eight 10 pins are used to control the flashing of 32 LEDs according to the program settings. S1 is the start stop sw... $2.44
$3.49 SKU: GY21070-1
$2.44
$3.49
 31

256 SMD 0805 Red LED Display DIY Kits, SMD Soldering Practice and Learning Kits for Microcontroller-based DIY Projects 256 SMD 0805 Red LED Display DIY Kits, SMD Soldering Practice and Learning Kits for Microcontroller-based DIY Projects 1.Description:    This kit consists of 256 0805 SMD LED display units, which can display any character of 256 pixels, such as Chinese characters, using row and column scanning. The kit comes with a microcontroller that has be... $4.89
$6.99 SKU: GY21069-1
$4.89
$6.99
 31

81-LED Thumbs-Up Flashing Light DIY Kits, Interesting Like Circulating Water Running Lamp Soldering Practice Kits for STEM Teaching and Learning 81-LED Thumbs-Up Flashing Light DIY Kits, Interesting Like Circulating Water Running Lamp Soldering Practice Kits for STEM Teaching and Learning 1.Description:    This is a thumb light like pattern electronic kit composed of 81 LEDs. After power on, the pattern presents various flashing effects of water lights. The button S1 is the power switch, and S2 can adjust the ... $2.99
$4.49 SKU: GY21068-1
$2.99
$4.49
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64-SMD 0805 Red LED Dot Matrix Display Electronic Soldering Practice Kit 64-SMD 0805 Red LED Dot Matrix Display Electronic Soldering Practice Kit 1.Description:    This kit consists of 64 0805 SMD LED display units, which can display any character of 64 pixels, such as numbers, using a row and column scanning method. The kit comes with a microcontroller that has been b... $2.45
$3.50 SKU: GY21066-1
$2.45
$3.50
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DIY Negative Feedback Amplifier Circuit Kit with Capacitor-Coupled Analogue Electronic Technology Training Parts DIY Negative Feedback Amplifier Circuit Kit with Capacitor-Coupled Analogue Electronic Technology Training Parts 1.Description:   1>.The negative feedback amplification circuit kit has good stability, which can effectively suppress distortion and noise, and improve sound quality.   2>.The RC coupled analog electronic technology ... $2.37
$3.39 SKU: GY20989-1
$2.37
$3.39
 30

Waterproof 0.56inch DC Digital Voltage Meter, DC5-130V Green LED Battery Volt Meter Gauge Voltage Display for Golf Cart Car, Boats Waterproof 0.56inch DC Digital Voltage Meter, DC5-130V Green LED Battery Volt Meter Gauge Voltage Display for Golf Cart Car, 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.... $4.55
$6.50 SKU: GY21015-2
$4.55
$6.50
 31

Waterproof 0.56inch DC Digital Voltage Meter, DC5-130V Blue LED Battery Volt Meter Gauge Voltage Display for Golf Cart Car, Boats Waterproof 0.56inch DC Digital Voltage Meter, DC5-130V Blue LED Battery Volt Meter Gauge Voltage Display for Golf Cart Car, 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.... $4.55
$6.50 SKU: GY21015-3
$4.55
$6.50
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DIY Kit Red Chinese Knot Analog Electronic Circuit, LED Light Kits for Soldering Skill Practice and Learning DIY Kit Red Chinese Knot Analog Electronic Circuit, LED Light Kits for Soldering Skill Practice and Learning 1.Description:    It is a simple mini Red Chinese Knot LED Flash Lamp DIY kit. The circuit is controlled by a DX158 LED driver chip, which can achieve automatic switching and cyclic playback of multifunctional light flashing ... $3.49
$4.99 SKU: GY21067-1
$3.49
$4.99
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SMD LED Components Soldering Practice Board Soldering Skill Training Kit SMD LED Components Soldering Practice Board Soldering Skill Training Kit 1.Description:     This is a electronic soldering practice kit consisting of 88 SMD components . No function, with class, name, and grade record labels on the back, suitable for beginners or electronics majors to improve... $2.51
$3.59 SKU: GY21072-1
$2.51
$3.59
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D2-8 Intelligent Tracking Line Smart Car DIY Kits, Fun STEM Kits for School Students Electronic Soldering Learning Practice Kits D2-8 Intelligent Tracking Line Smart Car DIY Kits, Fun STEM Kits for School Students Electronic Soldering Learning Practice Kits 1.Description:    It is a D2-8 Intelligent Tracking Line Smart Car Soldering Electronic Parts Practice Soldering Learning Electronics Kit. Please note: Batteries appeared in picture are not included. PCB color was differe... $6.69
$9.99 SKU: GY21073-1
$6.69
$9.99
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71-LEDs Blessing Light with Running Water Effect, DC 5V LED Light Electronics Kits for Soldering Practice School Students STEM Teaching and Circuit Learning 71-LEDs Blessing Light with Running Water Effect, DC 5V LED Light Electronics Kits for Soldering Practice School Students STEM Teaching and Circuit Learning 1.Description:    This is a Chinese " Fú (福) " pattern electronic kits composed of 71 LEDs. The microcontroller program has been burned and turned on. Press the stroke to turn on the water flow light, and the... $3.91
$5.59 SKU: GY21065-1
$3.91
$5.59
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LED Red Double Happiness Light DIY Electronics Kit 84pcs LEDs Light Kits for Soldering Skill Learning and Practice LED Red Double Happiness Light DIY Electronics Kit 84pcs LEDs Light Kits for Soldering Skill Learning and Practice 1.Description:    This is a Red Double Happiness welding kit composed of 84 LEDs. The microcontroller program has been burned and turned on. Press the stroke to turn on the water flow light, and then it will flash multiple ti... $3.68
$5.25 SKU: GY21064-1
$3.68
$5.25
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LED Electronic Windmill Water Flowing Light Electronic DIY Kits for Beginners LED Electronic Windmill Water Flowing Light Electronic DIY Kits for Beginners 1.Description:     This is a patterned windmill welding kit consisting of 43 LEDs. The microcontroller program has been burned and powered on. Nine types of animation playback switches are achieved through the screen swi... $3.49
$4.99 SKU: GY21063-1
$3.49
$4.99
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LED Circular Pentagram Water Flowing Light Electronic DIY Kits, Soldering Project for School Students STEM Teaching and Circuit Learning LED Circular Pentagram Water Flowing Light Electronic DIY Kits, Soldering Project for School Students STEM Teaching and Circuit Learning 1.Description:    This is a Circular start electronic kit composed of 80 LEDs. There are few types of components, which is an excellent choice for beginners, electronics enthusiasts, and retirees who want to learn and improve... $3.49
$4.99 SKU: GY21062-1
$3.49
$4.99
 31

DIY Kit HC-SR04 Ultrasonic Automatic Obstacle Avoidance Intelligent Car, STEM Electronic Kits for School Students Learning Competition DIY Project DIY Kit HC-SR04 Ultrasonic Automatic Obstacle Avoidance Intelligent Car, STEM Electronic Kits for School Students Learning Competition DIY Project 1.Introduction:   HU-046 is a HC-SR04 Ultrasonic Automatic Obstacle Avoidance Intelligent Car DIY Kit. The car automatically advances, and when the sensor senses an obstacle in front, it automatically turns left or right, or even ... $11.19
$15.99 SKU: GY21074-1
$11.19
$15.99
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6A 3 Series 18650 Lithium Battery Protection Board 10.8V 11.1V 12V 12.6V Overcharge Overcurrent Protection Module 6A 3 Series 18650 Lithium Battery Protection Board 10.8V 11.1V 12V 12.6V Overcharge Overcurrent Protection Module 1.Description:    Equipped with over charging, over discharging, over current, and short circuit protection functions    Suitable for 3.7V lithium batteries of various capacities and shapes    Small si... $3.00
$4.29 SKU: GY21041-1
$3.00
$4.29
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DC 12V 24V 30W Mono Voice Playback Module, 9-Channel Music Power Digital Amplifier, Support 32G TF Card Socket, MP3 WAV UART Controller for Arduino DC 12V 24V 30W Mono Voice Playback Module, 9-Channel Music Power Digital Amplifier, Support 32G TF Card Socket, MP3 WAV UART Controller for Arduino                                        &nb... $9.09
$12.99 SKU: GY21061-1
$9.09
$12.99
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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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