3pcs cjmcu

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 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 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 CJMCU 5V Mini USB Power Connector DC Power Socket Board For Arduino Features:Mini USB interface: input 5V, output 5V and 3.3VDC power socket interface: input 5-12V, output (5V label) 5V-12V and 3.3V.Size: 25mm * 25mmPackage included:3 x Mini USB Power Connector DC Power Socket Board

3Pcs CJMCU CP2102 USB To TTL/Serial Module Downloader For Arduino

3Pcs CJMCU Micro USB Interface Board Power Switch Interface Package contains 1 X item of the smallest listed variant.

Buy 3Pcs CJMCU 7 Bit WS2812 5050 RGB LED Driver Development Board Geekcreit for Ardu for R99.00

Buy 3Pcs CJMCU 12 Bit WS2812 5050 RGB LED Driver Development Board for R257.82

Buy 3Pcs CJMCU Micro USB Interface Board Power Switch Interface... for R189.00

Buy 3Pcs CJMCU CP2102 USB To TTL/Serial Module Downloader for R178.60

Buy 3Pcs CJMCU 16 Bit WS2812 5050 RGB LED Driver Development Board for R376.00

Description: With this USBTinyISP programmer you can upload sketches and burn the bootloader on any AVR based boards, including Arduinos. By uploading a sketch with an external programmer you can remove the bootloader and use the extra space for your sketch. This Programmer can also be used to burn the Arduino bootloader, so you can recover your chip if you accidentally corrupt the bootloader. Burning the bootloader is also necessary when you use a new ATmega microcontroller in your Arduino, and you wish to use the bootloader to upload a sketch via the USB-Serial connection. Package included: 3 x AVR ISP ATtiny44 USBTinyISP Programmer Arduino Bootloader

Specifications: - Supply Voltage: 2.7v-5.5v @ 3mA current - Output: 2Vpp on 1.25V bias - Frequency Response: 20Hz - 20KHz - Programmable Attack and Release Ratio - Automatic gain, selectable max from 40dB, 50dB or 60dB - Low Input-Referred Noise Density of 30nV/ - Low THD: 0.04% (typ) - Low Power Shutdown Mode - Built-in 2V low-noise microphone bias - -40°C ~ +85°C extended temperature range Package included: 3 x Microphone AGC Amplifier Module

Description: Outside diameter: 126 mm Inside diameter: 108 mm Package included: 3 x Built-in Full Color Drive LED Lights Circular Development Board

Description: This super small mono amplifier is surprisingly powerful - able to deliver up to 2.5 Watts into 4-8 ohm impedance speakers. Inside the miniature chip is a class D controller, able to run from 2.0V-5.5VDC. Since the amp is a class D, its very efficient (over 90% efficient when driving an 8Ω speaker at over half a Watt) - making it perfect for portable and battery-powered projects. It has built in thermal and over-current protection but we could barely tell it got hot. There's even a volume trim pot so you can adjust the volume on the board down from the default 24dB gain. This board is a welcome upgrade to basic "LM386" amps! CJMCU The A+ and A- inputs of the amplifier go through 1.0uF capacitors, so they are fully 'differential' - if you don't have differential outputs, simply tie the Audio- pin to ground. The output is "Bridge Tied" - that means the output pins connect directly to the speaker pins, no connection to ground. The output is a high frequency 250KHz square wave PWM that is then 'averaged out' by the speaker coil - the high frequencies are not heard. All the above means that you can't connect the output into another amplifier, it should drive the speakers directly. CJMCU Comes with a fully assembled and tested breakout board. We also include header to plug it into a breadboard and a 3.5mm screw-terminal blocks so you can easily attach/detach your speaker. You will be ready to rock in 15 minutes! Features: - Output Power: 2.5W at 4Ω, 10% THD, 1.5W at 8Ω, 10% THD, with 5.5V Supply - 50dB PSRR at 1KHz - Filterless design, with ferrite bead + capacitors on output. - Fixed 24dB gain, onboard trim potentiometer for adjusting input volume. - Thermal and short-circuit/over-current protection - Low current draw: 4mA quiescent and 1uA in shutdown mode Note: Speaker is not included, use any 4 ohm or greater impedance speaker. Package included: 3 x Audio Power Amplifier

Description: Brand Name: CJMCU This is a PIC12F508 Microcontroller Development Board Package included: 3 x CJMCU-508 PIC12F508 Microcontroller Development Board

Description:   1. The EasyDriver is a simple to use stepper motor driver, compatible with anything that can output a digital 0V to 5V pulse. (or 0V to 3.3V pulse if you solder SJ2 closed on the EasyDriver) 2. EasyDriver requires a 7V to 30V supply to power the motor and can power any voltage of stepper motor. 3. The EasyDriver has an on board voltage regulator for the digital interface that can be set to 5V or 3.3V. Connect a 4-wire stepper motor and a microcontroller and you've got precision motor control! EasyDriver drives bi-polar motors, and motors wired as bi-polar. I.e. 4, 6, or 8 wire stepper motors. 4. It provides much more flexibility and control over your stepper motor, when compared to older versions. The microstep select (MS1 and MS2) pins of the A3967 are broken out allowing adjustments to the microstepping resolution. The sleep and enable pins are also broken out for further control.cjmcu made.   Features:   1. MS1 and MS2 pins broken out to change microstepping resolution to full, half, quarter and eighth steps (defaults to eighth) 2. Compatible with 4, 6, and 8 wire stepper motors of any voltage 3. Adjustable current control from 150mA / phase to 750mA / phase 4. Power supply range from 7V to 30V. The higher the voltage, the higher the torque at high speeds 5. Distribution pin, not welded, this module is open source   Note:   Do not connect or disconnect a motor while the driver is energized.This will cause permanent damage to the A3967 IC. Chip data: https://www.alldatasheetcn.com/datasheet-pdf/pdf/83571/ALLEGRO/A3967.html   Package included:   3 X A3967 easy driver stepper motor driver board