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DIY Kit LM324 Temperature Indicator DC 5V Thermistor Sensor Electronic Soldering Practice Kits Working voltage: 5V DC power supply Description: This circuit is mainly composed of two integrated operational amplifiers LM324. One LM324 contains four identical operational amplifiers. The circuit... $2.79
~~$3.99~~ SKU: 13608
$2.79
~~$3.99~~
30

DIY Kit RGB LED Flashing Controller SMD Component Welding Practice Electronic Suite Description: In order to improve the welding skill level of electronic professional students and electronic enthusiasts, the full patch design, welding quality can be visually displayed through the lighting of 15 LEDs. ... $2.63
~~$3.75~~ SKU: 13606
$2.63
~~$3.75~~
30

DIY Kit Ultrasonic Range Finder Distance Measuring Transducer Sensor Electronic Kits for Soldering Learning Supply voltage: DC 4.5-6V Detection range: 25-400cm (indoor) Description: ▲Using ultrasonic waves to measure obstacle distance, the ultrasonic range finder sends a 40KHz ultrasonic pulse through ... $6.01
~~$8.59~~ SKU: 13605
$6.01
~~$8.59~~
30

DIY Kit Brightness Light Detector Dark Alarm Photosensitive Sensor Kit Electronic Soldering Practice Kits 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... $2.09
~~$2.99~~ SKU: 13603
$2.09
~~$2.99~~
31

DIY Kit MQ-3 Sensor Alcohol Detector Tester Alarm System Soldering Teaching Tranining Kits 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. ... $4.19
~~$5.99~~ SKU: 13602
$4.19
~~$5.99~~
31

DIY Kit NE555 Trigger Circuit Electronic Components Assmbly for Soldering Practice $2.09
~~$2.99~~ SKU: 13601
$2.09
~~$2.99~~
31

4S 3.2V Lithium Iron Phosphate Battery 12.8V 100A Charging Protector Balanced Function Board Parameters: 1>.Overcharge protection voltage:3.75V+/-0.025V 2>.Overcharge release voltage:3.55V+/-0.05V 3>.Overcharge protection delay:1S+/-200mS 4>.Over-discharge protection voltage:2.0V+/-0.05V 5>.Ove... $7.69
~~$10.99~~ SKU: 13593
$7.69
~~$10.99~~
31

5S 3.7V Polymer Lithium-Ion Battery 18.5V 50A Charging Protector Balanced Function Board Parameters: 1>.Overcharge protection voltage:4.25V+/-0.025V 2>.Overcharge release voltage:4.15V+/-0.05V 3>.Overcharge protection delay:1S+/-200mS 4>.Over-discharge protection voltage:2.7V+/-0.05V 5>.Ove... $6.99
~~$9.99~~ SKU: 13590
$6.99
~~$9.99~~
30

RFID Wireless Module 125KHz ID Card Reader Wiegand-26Bit Contactless Controller w/Antenna Parameters: 1>.Input voltage: DC 3V-5V 2>.Work current: 25mA 3>.Working frequency: 125KHz 4>.Suitable type:EM4001/4102 or compatible card 6>.Read distance:<7cm 7>.Working Temperature range:-20... $4.19
~~$5.99~~ SKU: 13584
$4.19
~~$5.99~~
31

ETK3699 Digital Kara OK Surround Reverb Delay Microphone Amplifier Preamp Board Description: It is a Microphone Amplifier Preamp Board.It is used to adjust the sound signal of the microphone Parameters: 1>.Item Name: Microphone Amplifier Preamp Board 2>.Model:SFT-S699 3>... $10.49
~~$14.99~~ SKU: 13562
$10.49
~~$14.99~~
30

AC/DC 12V Liquid Level Controller Sensor Module Water Level Detection Sensor Description: It is an automatic level controller.It can control the working of the equipment by testing the liquid level. Parameters: 1>.Item Name: Automatic level controller 2>.Model:SFT-SK09 3... $3.91
~~$5.59~~ SKU: 13560
$3.91
~~$5.59~~
30

1-Channel Signal Generator 8A Driver Module for Motor/Lamp 1Hz-150KHz Dual Mode LCD PWM Pulse Frequency Duty Cycle Adjustable Module 1.Description: ZK-PP2 signal generator is a device that provides electrical signals at a variety of frequencies, square wave, pulse and output levels. It supports dual mode: PWM mode and PULSE mode. ... $5.59
~~$7.99~~ SKU: 13557
$5.59
~~$7.99~~
31

Signal Generator Square Wave Generator 1-Channel 1Hz-150KHz Dual Mode LCD PWM Pulse Frequency Duty Cycle Adjustable Module 1.Description: ZK-PP1 signal generator is a device that provides electrical signals at a variety of frequencies, square wave, pulse and output levels. It supports dual mode: PWM mode and PULSE mode. It is used as a sign... $5.59
~~$7.99~~ SKU: 13556
$5.59
~~$7.99~~
31

DC 5V-38V Multi-function Meter LCD Voltmeter Ammeter Battery Capacity Tester Power Tester Discharge Timer Temperature Display 1.Description: This product is a multi-function voltage-ammeter. The main function of this product is to measure the voltage and current, and display it in real-time. At the same ti... $6.01
~~$8.59~~ SKU: 13555
$6.01
~~$8.59~~
30

High-Power Stereo Digital Power Amplifier Board 12V 24V 30W+30W 1.Description: DY-AP3015 is a high-power stereo audio module. Dual channels audio signal output.Built-in amplifier module therefore it can connect to loudspeaker directly.It is ideal for DIY speakers and transponders. ... $3.07
~~$4.39~~ SKU: 13552
$3.07
~~$4.39~~
30

3.7V-5V White MP3 Decoder Board Bluetooth-compatible Call Module FM AUX Input Support TF Card/U-Disk Lossless 1.Description: It is a car audio decoding module.So it can be directly connected to amplifier and then connect the speaker.It comes with a control panel, suitable for car Bluetooth speaker devices. 2.Features: ... $4.89
~~$6.99~~ SKU: 13547
$4.89
~~$6.99~~
31

DC Motor Driver Module Forward Reverse Controller 12V 10A Limit Control Description: Motor forward and reverse controller is used to control motor work status to make sure motor can be precisely controlled.Applicable to occasions where the motor control requirements are increased. ... $6.29
~~$8.99~~ SKU: 13543
$6.29
~~$8.99~~
30

DC Motor Driver Module 10A 12V QF-M05 Forward Reverse Controller Self-locking Description: Motor forward and reverse controller is used to control motor work status to make sure motor can be precisely controlled. Applicable to occasions where the motor control requirements are increased. &nbs... $5.59
~~$7.99~~ SKU: 13541
$5.59
~~$7.99~~
31

100s Time Delay Relay Module AC 220V Adjustable Device Power ON Protector Description: It is a AC 220V power ON delay relay module. Used for device boot protection. Parameters: 1>.Item Name:AC 220V 100s Delay Relay Module 2>.Model:QF1022-B-100S 3>.Work voltage:AC 220V ... $3.49
~~$4.99~~ SKU: 13540
$3.49
~~$4.99~~
31

5PCS Solar Charging Module 3.6V 3.7V 4.2V Charging protector Description: It is a solar charging module for single lithium battery. Support charging and discharging at the same time. Parameters: 1>.Item Name:Solar Charging Module 2>.Model:None 3>.Work voltag... $4.17
~~$5.95~~ SKU: 13538
$4.17
~~$5.95~~
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