3pcs led 4x4

3Pcs LED Driver Charging Constant Current Voltage Step Down Buck Module

Buy 3pcs 8 LED 4x4 Push Button Switch 16 Keys Matrix Independent Keyboard Module For AVR ARM STM32 for R192.94

Buy 3pcs 8 LED 4x4 Push Button Switch 16 Keys Matrix Independent Keyboard Module For AVR ARM STM32 for R245.00

Buy 3pcs LED Traffic Light Module Electronic Building Blocks Board for R222.85

Buy 3pcs LED Dimming Power Supply Module 5*1W 110V 220V Constant Current Sil for R109.00

Description: 4 x 4 Matrix Push Buttons 4 independence push buttons 8 LEDS Size: 50 x 60mm Package Included: 10 x 8 LED 4 x 4 push buttons matrix keyboard 40 x Pillars 40 x Screws

3Pcs MAX7219 Red 8 Bit Digital Tube LED Display Module For Arduino MCU Description: MAX7219 is an integrated serial input / output common-cathode display drivers, which connects the microprocessor and 8 bit 7-segment digital LED display, you can also connect a bar graph display or 64 separate LED. Includes an on-chip type B BCD encoders, multi-channel scanning loop, segment word driver, but also a 8x8 static RAM that stores each data. Only one external register is used to set the current of each LED segment. A convenient four-wire serial interface can connect all common microprocessor. Each data can be addressed in the update without rewriting all displays. MAX7219 also allows the user to select each data encoding or no coding. The entire device includes a 150μA low-power shutdown mode, analog and digital brightness control, a scan-limit register allows the user to display 1-8 bit data, there is an all LED light detection mode. Feature: 0.36 inch Common cathode Only need three IO ports can drive 8 bit digital tube The module compatible of 5V / 3.3V microcontroller (51 / AVR / STM32...) PCV board four corners of the fixed copper stud, which can effectively precent short circuit accidents happen Wiring instructions (a program, for example, you can pick any IO port definition can be modified in the program): VCC to 5V, GND to GND, DIN to P00, CLK to P02, CS to P01 Note: VCC and GND do not reversed, it would burn the chip. 51 MCU P0 port requires pull-up resistor, if your device does not have a pull-up resistor can be connected to other ports data lines. Package included: 3 x MAX7219 8 bit digital tube module 12 x Copper pillar 12 x Screws

3pcs 5MM LED Flashlight Convenient Light Kit Simple LED Boost Drive DIY Electronic Kit

3pcs 4X4X4 Blue LED Light Cube Kit 3D LED DIY Kit For Arduino DIY Kit Package contains 1 X item of the smallest listed variant.

3Pcs MAX7219 Dot Matrix Module MCU LED Control Module Kit For Arduino Specifications: A single module can drive an 8 x 8 common cathode lattice Operating voltage: 5V Size: 5 x 3.2 x 1.5 cm (L x W x H) LED color: Red With four screws hole, aperture 3mm With input and output interfaces, supports multiple modules cascade Wiring instructions: 1. The module left side as an input port and the output port on the right 2. To control a single module, just connect the input port to the CPU 3. When cascading multiple modules, the input port of the first module connect to the CPU, the output port connect to the input port of the second one, and so on. In the case of 51 MCU: VCC → 5V GND → GND DIN → P22 CS → P21 CLK → P20 Note: 1. VCC and GND is not reversed, it would burn the chip! 2. When the 51 microcontroller P0 port controlling, must be connected to the pull-up resistor, it is recommended that the resistance of 4.7K--10K 3. Please install lattice into the round hole first, and then insert the round hole to PCB board and weld. Face the side of lattice with words, from left to right pin order is 123456. PCB board 1st pin is square pad! 4. Electrolytic capacitors long-pin as positive, short-pin as negative; ceramic capacitor hsa no positive and negative points Package included: 3 x LED module 3 x Dupont line (5P-20cm)

3Pcs TM1638 Chip Key Display Module 8 Bits Digital LED Tube For AVR Arduino Features:8 Bits, 8 keys, 8 LEDs, 8 digital tubes, common cathode LED digital tube.With TM1638 Chip, this module gather more than three common SCM peripheral circuits.The advantage is only three IO ports will be occupied when it drives.SCM doesn't need to work for scaning display and key scaning.It only need to read the relevant register to send display data or test button so it save MCU resources effectively.Keys are sensitive and display effectively.Specification:Weight: 28gMaterial: Glass fiber reinforced plastic, PBT shell, PA bladesHow to connect: VCC GND 5V power supply, STB CLK DIO SCM IO port.Package included:3 x LED display module withe cable

3Pcs CJMCU 4 x 4 Bit WS2812 5050 RGB LED Driver Development Board Feature: Votalge: DC 5V Color: RGB Size: 30MM X 30MM  (Error in 1MM-2MM) Pacakge included: 3 x 4 x 4 Bit WS2812 5050 RGB LED Driver Development Board

3Pcs CJMCU 7 Bit WS2812 5050 RGB LED Driver Development Board Feature: Radius 11.5mm Package included: 3 x CJMCU 7 Bit WS2812 5050 RGB LED Driver Development Board.

3Pcs CJMCU 4 Bit WS2812 5050 RGB LED Driver Development Board Feature: Votalge: DC 5V Color: RGB Size: 15MM X 15MM Pacakge included: 3 x 4 Bit WS2812 5050 RGB LED Driver Development Board

3pcs AC-DC 12V 0.5A 6W Switching Power Bare Board For LED Stage Light AC 100-240V To DC 12V Description: 1. Input voltage: AC 100V-240V 50-60Hz2. Output voltage: DC 12V3. Output current: 500ma4. Output power: 6W5. Size: 5.5 x 3.5 x 1.9cmPackage included:3 x AC-DC 12V 500ma 6W switching power module