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DIY Kit MQ-3 Sensor Alcohol Detector Tester Alarm System Electronic Components Suite DC5-7.5V DIY Kit MQ-3 Sensor Alcohol Detector Tester Alarm System Electronic Components Suite DC5-7.5V MQ-3 Alcohol Detector Alarm Sensor DIY Kit Working voltage: 5-7.5V DC   Description:  Alcohol concentration alarm circuit This circuit is mainly an alarm control circuit formed by the gas sensor group MQ-3. ... $5.59 SKU: 13602
$5.59

Warm White Blue Flashing LED Music Butterfly Shaped Light DIY Kit LED Lighting Lamp Kit with Remote Controller Warm White Blue Flashing LED Music Butterfly Shaped Light DIY Kit LED Lighting Lamp Kit with Remote Controller 1.Description: This kit is practical and interesting, a total of 178 elements, is the preferred material for learning electronic technology, electronic skill training, electronic assembly test. Circuit board design aesthetic scie... $10.99 SKU: 4982
$10.99

Red Countdown Timer 60s Rotary Electronic Clock DIY Kit 60s Rotate Seconds Count Smart Timing Alarm Teaching DIY Kits Red Countdown Timer 60s Rotary Electronic Clock DIY Kit 60s Rotate Seconds Count Smart Timing Alarm Teaching DIY Kits Description: 60 second countdown timer.Realize a fixed time countdown. After the time is end, start the alarm and generate 3-4 alarms.It can be used for prompters, match reminders,timeout reminder. Features: 1>.Fixed 60 secon... $5.49 SKU: 13240
$5.49

ICStation Electronic Temperature Control DIY Kit Sound Light Alarm Suite DC 3-5V ICStation Electronic Temperature Control DIY Kit Sound Light Alarm Suite DC 3-5V With Simple circuit, easy soldering, this suite is very suitable for the teenagers to learn circuit and soldering. The feature of this suite is small size, high sensitivity. It uses the sound and light to finish the alarm, and it can be ... $2.59 SKU: 5425
$2.59

5V 1 Channel Relay Module Shield for Arduino ARM PIC AVR DSP SRD 5V 1 Channel Relay Module Shield for Arduino ARM PIC AVR DSP SRD 5V 1 Channel Relay Module Shield for Arduino ARM PIC AVR DSP SRD-05VDC-SL-C   1. Introduction   The item is a 5V 1-Channel Relay interface board,It can be controlled directly by a wide range of microcontrollers ... $1.84 SKU: 1706
$1.84

NRF52832+PA Wireless Transceiver Module BLE5.0 ARM Cortex M4F MCU 512kB Transmitter Receiver Module NRF52832+PA Wireless Transceiver Module BLE5.0 ARM Cortex M4F MCU 512kB Transmitter Receiver Module 1.Description:   It is a NRF52832+PA wireless transceiver module. This module is based on Nordic nRF52832 Soc and PA (power amplifier), it can provide long distance for transmitter.nRF52832 SoC is a powerful, highly flexible ult... $10.04
$13.39
SKU: GY18372
$10.04
$13.39

25

MINI STM32F030C8T6 Development Board TTL GPIO ARM STM32 for JTAG SWD Minimal System Board MINI STM32F030C8T6 Development Board TTL GPIO ARM STM32 for JTAG SWD Minimal System Board 1.Description:   ZC-WQDSTM32F030-V2 development board is a single chip based on STM32F030C8T6 chip.STM32F030C8T6 has 64KB of FLASH and 8KB of RAM.This product has led out all IO (the upper layer is identified by the port number,... $13.99 SKU: GY18162
$13.99

MINI STM32F030K6T6 Development Board TTL GPIO ARM STM32 for JTAG SWD MINI STM32F030K6T6 Development Board TTL GPIO ARM STM32 for JTAG SWD 1.Description:   It is a mini STM32F030K6T6 development board.It is a single chip based on the STM32F030K6T6 chip.The STM32F030K6T6 has 32KB of FLASH and 4KB of RAM.This product has led out all IO (the upper layer is identified ... $14.99 SKU: GY18160
$14.99

STM32F103C8T6 Development Board RS485 RS232 UART Protocol Converter ARM STM32 for JTAG SWD STM32F103C8T6 Development Board RS485 RS232 UART Protocol Converter ARM STM32 for JTAG SWD 1.Description:   It is a dual serial development board.It is based on the most basic circuits of the MCU,such as crystal oscillator circuit,USB power management circuit and USB interface.It has SWD simulation debugging download ... $25.99 SKU: GY18158
$25.99

DC 12V 3Bit PWM 4-Wire Fan Temperature Controller 3A Speed Governor for PC Fan/Alarm DC 12V 3Bit PWM 4-Wire Fan Temperature Controller 3A Speed Governor for PC Fan/Alarm 1.Description:   It is a PWM 4-Wire fan temperature controller. It has three PWM outputs, each of which can manually adjust the output ratio.   2.Feature:   1>.Three PWM outputs   2>.Three-wa... $5.83
$7.29
SKU: GY17492
$5.83
$7.29

Low Power Consumption Synchronization Timer Output Alarm Delay Relay Module Scheduled Start Low Power Consumption Synchronization Timer Output Alarm Delay Relay Module Scheduled Start 1.Decription:   Timer3-RU is a programmable timer module with USB and high precision clock chip.   2.Feature:   1>.TmTimer3-RU has a built-in high-speed CPU and high-precision clock chip.   2>... $8.19 SKU: GY17347
$8.19

Low Power Consumption Synchronization Timer Output Alarm Delay Module Low Power Consumption Synchronization Timer Output Alarm Delay Module 1.Description:   TmTimer3 is a low power consumption synchronization timer output alarm delay module. TmTimer3 has a built-in CPU and high-precision clock core.It has timing and delay functions.   2.Feature: &nb... $7.79 SKU: GY17346
$7.79

DC 5V MP3 Voice Module 4M Flash Voice Playback Module with 3W Amplifier for Broadcast Alarm DC 5V MP3 Voice Module 4M Flash Voice Playback Module with 3W Amplifier for Broadcast Alarm 1.Description:   It is a 4M flash voice playback module.It can play music by inserting TF card.It can be connected to the human body's infrared sensing head,and the human body's infrared trigger will play the voice once.... $4.47
$5.59
SKU: GY17114
$4.47
$5.59

STM8L152K4 Development Board ARM STM8L Programmable MCU Controller STM8 System Board with Cable STM8L152K4 Development Board ARM STM8L Programmable MCU Controller STM8 System Board with Cable 1.Description:   It is a STM8L152K4 Development board. Built-in CH340 download chip and users can download the code directly.Open all pins, users can choose to use various interface resources according to their own needs. &n... $7.59 SKU: 14581
$7.59

STM8S103K3T6 Development Board ARM STM8S Programmable MCU Controller STM8 System Board with USB Cable STM8S103K3T6 Development Board ARM STM8S Programmable MCU Controller STM8 System Board with USB Cable 1.Description:   It is a STM8S103K3T6 Development board. Built-in CH340 download chip and users can download the code directly.Open all pins, users can choose to use various interface resources according to their own needs. ... $4.99 SKU: 14580
$4.99

XH-W3000 DC 12V 120W Digital Thermostat Temperature Controller -30-220℃ Thermometer Alarm Temp Regulator NTC Sensor XH-W3000 DC 12V 120W Digital Thermostat Temperature Controller -30-220℃ Thermometer Alarm Temp Regulator NTC Sensor 1.Parameters:   1>.Version:XH-W3000   2>.Work voltage :DC 12V   3>.Output type:Voltage output   4>.Output power:120W(Max)   5>.Measuring range:-30℃~220℃   6>.Control... $7.49
$9.99
SKU: 14289
$7.49
$9.99

26

DIY Kits Infrared Sensor Alarm Electronic Circuit Suite DIY Kits Infrared Sensor Alarm Electronic Circuit Suite Descrption:    This circuit design can realize the buzzer sounds when the hand is close to the infrared emission tube and the infrared receiving tube, the LED light is on, the sound is stopped immediately after the hand is ... $2.35 SKU: 13808
$2.35

DIY Kit MQ-2 Smoke Sensor Detector Natural Gas Alarm Electronic Components Suite DIY Kit MQ-2 Smoke Sensor Detector Natural Gas Alarm Electronic Components Suite Function:     With the continuous improvement of people's living standards, gas and natural gas have entered thousands of households, bringing convenience to everyone, but also there are many safety hazards. Gas poisoni... $5.69 SKU: 13610
$5.69

DIY Kit Brightness Detector Dark Alarm Electronic Components Suite DIY Kit Brightness Detector Dark Alarm Electronic Components Suite Description:      This circuit is used to detect ambient light and emit sound and light alarm when the light is bright.   Supply voltage: DC3-5V   Principle:      RP, RG, Q1... $2.59 SKU: 13603
$2.59

DC 3-24V 2 Wire Industrial Electronic Alarm Sound Buzzer SFM-27 DC 3-24V 2 Wire Industrial Electronic Alarm Sound Buzzer SFM-27 Product Introduction: 1.Thickness:15mm 2.Diameter:30mm 3.Rated Voltage:12V 4.Voltage Range:3-24V 5.Rated Current:no more than 30MA 6.Sound Voltage Level:more than 85dB 7.Resonant Frequency:3000+/-500Hz 8.Operating Tempera... $1.49 SKU: 9230
$1.49


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