I bought an 8 channel dc 5v relay module for Arduino from an on-line store. When i power on my system, the modules become really hot.
My connections are,
- Vcc to 24vdc
- Gnd to ground
- In(1-8) to the digital outputs of my arduino.
Everything seems to be connected correctly. Another thing, when I tried pulling out the jumper connected between Vcc to JD-VCC, then powered it up; the relays and other components didn't turn hot, but the problem is that it does not respond to the digital inputs that I send from the Arduino..
** We assume it is this module, please confirm.