this projects pcb have two parts
1- interface board
2- controller board
you can see each board and projecte separately
first build and assemble two boards
final product pic:
and you can see pin out of controller board in this picture:
you can find source of mini scada controller board in:
https://github.com/ARoozitalab/MINI_SCADA_SRC
and you can find pc application via QT for mini scada in :
https://github.com/ARoozitalab/Modbus-TCP-IP-server-QT
if you have any question please contact me
Mini SCADA with Analog in , Digital in , Relay out , PWM , Modbus RTU / TCP support