3pcs 8 led 4x4

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

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

Buy 3pcs 8 Channel WS2812 5050 RGB LED Lights Built-in 8 Bits Full Color Driver Development Board For for R301.00

Description: The HT16K33 is a memory mapping and multi-function LED controller driver. The max. Display segment numbers in the device is 128 patterns (16 segments and 8 commons) with a 13*3 (MAX.) matrix key scan circuit. The software configuration features of the HT16K33 makes it suitable for multiple LED applications including LED modules and display subsystems. The HT16K33 is compatible with most microcontrollers and communicates via a two-line bidirectional I2C-bus. Feature: Operating voltage: 4.5V~5.5V. Integrated RC oscillator. I2C-bus interface. 16*8 bits RAM for display data storage. Max. 16 x 8 patterns, 16 segments and 8 commons. R/W address auto increment. Max. 13 x 3 matrix key scanning. 16-step dimming circuit. Selection of 20/24/28-pin SOP package types. Applications: Industrial control indicators. Digital clocks, thermometers, counters, multimeters. Combo sets. VCR sets. Instrumentation readouts. Other consumer applications. LED Displays. Package included: 3 x Module

Description:   This is a 8 x 8 LED dot matrix display module that can be used to display characters and graphics and it is simple to control it.   Features:   Compatibility: Compatible with Arduino UNO R3 / Arduino Mega2560. Libraries for Arduino: Max72xxPanel and Adafruit_GFX Resolution: 8 x 8 Driver:  LED color: Highlight Red Display size: 60.2X60.2mm LED size: 5mm Cascadable: Yes Number of cascadable node: 32(MAX) Driver IC: MAX7219 Working voltage: 4.5-5.5V Working current: 250mA(MAX) Interface logic voltage: 5V Interface type: SPI Great for Arduino DIY projects Package included: 3 x OPEN-SMART Dot Matrix LED 8x8 Seamless Cascadable Red LED Dot Matrix F5 Display Module

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 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 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 3V To 5V 1A USB Charger DC-DC Converter Step Up Boost Module Features: Module uses the Taiwan production boost chip, high efficiency (up to 92%), plus built-in over-current protection chip, can be more good to protect the module and use the device after the class. Module with undervoltage protection, undervoltage protection into state below 2.5V, can be more better protect the battery, to avoid excessive discharge. Module can modify the fixed resistor adjusts the output voltage can be adjusted up to 12V output, but to ensure that the output power of less than 5W. This module uses TDK multilayer ceramic capacitors as main filter capacitor, the output ripple can be as low as 20mV (5V1A output case)! This module uses a standard USB interface, you can use all universal USB charging mobile phones, MP3, MP4 and other equipment, the perfect support for IPHONE and other mobile phone. Specification: Module properties: Non-isolated step-up module (BOOST) Input voltage: 2.5-6V Output voltage: 4-12 V(Adjustable, the default 5 v) Output current: 1000mA (Max) Efficiency: 92%(Max) (the higher the input voltage, the higher the efficiency) Switching frequency: 1MHz Output ripple: 20mV (MAX) Operating temperature: Industrial (-40°c to +85°c) Voltage regulation: ±2.5% Short circuit protection: None (please use the lithium battery with protection) Input: IN + postive, IN - negative Output: USB output Size: 3 x 1.3 x 0.8 cm Application: This module can be used for DIY mobile power output, enabling single or two ordinary lithium battery to 5V boost to the mobile phone or PSP device charging. DIY a mobile power supply, only need one battery, you can output 5V voltage for your phone, MP3, MP4, PSP charger, very easy. In order to power your electronic devices when your device needs 5V power supply, when you only have lithium battery, this module can be directly step-up to 5V, solve your problems. Note: This module is a fixed 5V output module Modules indicated above IN - (negative input), IN + (positive input), OUT-(negative output), OUT + (positive output) must be connected correctly, otherwise it may cause damage to the module This module has an LED light, when the charge when the LED lights can be used as indicator Package included: 3 x USB boost module

Buy 3Pcs TM1638 Chip Key Display Module 8 Bits Digital LED Tube AVR for R295.00

Buy 3pcs 3.3V 5V 8 Bit Blue Common Anode LED Indicator Display Module DIY Kit for R210.00

Buy 3Pcs TM1638 Chip Key Display Module 8 Bits Digital LED Tube AVR for R349.00

Buy 3pcs 3.3V 5V 8 Bit Blue Common Cathode LED Indicator Display Module DIY Kit for R179.00

Buy 3pcs 3.3V 5V 8 Bit Blue Common Anode LED Indicator Display Module DIY Kit for R197.37