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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 ... $3.14
$4.49 SKU: GY21068-1
$3.14
$4.49
 31

DIY Electronic Kit 64 SMD LED Dot Matrix Display Advertising Screen Number SMD Soldering Practice Kit DIY Electronic Kit 64 SMD LED Dot Matrix Display Advertising Screen Number SMD 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
 30

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
 31

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
 31

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
 30

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... $6.79
$9.99 SKU: GY21073-1
$6.79
$9.99
 33

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
 30

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
 31

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 soldering 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 s... $3.49
$4.99 SKU: GY21063-1
$3.49
$4.99
 31

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
 31

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
 30

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
 30

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
 30

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
 31

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
 30


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