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