Programmable 4 input 4 outputs 24V relays board

Programmable relay board

• Toggle, pulse, timer, user defined
  
• 4 dry-type relays
• 6 terminals per relay 2 x COM+NO+NC
• Maxi 24V 2A
• Atmel ATTiny 261/461/861 programmable micro-controller

Control by I2C, hardwired inputs or push-buttons.

Stand-alone unit, hard wire or serial control.

This board allows serial connection with other modules to provide a common power

supply and I2C bus for all connected devices:

• Power supply
• CPU/MCU
• I/O boards
  

Documentation, electrical schematics and PCB drawing

Source code demo C/C++ (Aduino)