Full Member level 2
I am designing a project where a c8051f340 uc kit is connected to lcd and several push buttons and couple of fans, eeprom and some other components. The power supply of lcd, eeprom and the rest of electronic components is from a transformer different from the transformer feeding the 2 fans. when i tried to add a motor which is controlled through a push button(ON - OFF) , and the power of the motor is from the same power supply of the 2 fans, the lcd display funny characters when the motor is switched on. I think something is wrong with the power but I don't know what. ofcourse the ground is common between all circuits.