PCB For Atmega328 Arduino 4 relay Controller

Description

PCB For Atmega328 Arduino 4 relay Controller An Empty PCB board for DIY soldering , the board contains All you need to control up to 4 relays with GPIO Headers and connections for Both analog and digital I/O and Headers to connect ESP8266 ESP01 WIFI or HC-05 Bluetooth Module in one board and program it directly using Arduino IDE Board Features: Based on Arduino Uno bootloader with ATMEGA328P On board CH340C USB-TTL module to connect it to PC for your code download On board ULN2003 for relay driver A0-A5 and all SPI digital pins connections via Terminal block to easy connect extra sensors and modules Buzzer onboard reset switch All output Relays connected to LED for easy debugging your code flow LD1117-3.3 to power ESP8266 with built in voltage divider for RX-TX pins the board power using 5V dc via Standard DC jack in use this link as soldering guide and bill of materials also included