I am trying to make an electronic appliance. My circuit has 8Nos 5V components and 1Nos 12V component. (2 of them being Arduino Pro Minis). I have 3 questions regarding this circuit:
Q1: How do I design the power supply for this circuit? I can have only 1 adapter (wall wart) to wall mount this appliance.
Following is the list of my components:
Arduino Pro Mini 5v/16MHz (Master)
Arduino Pro Mini 5v/16MHz (Slave)
16x2 LCD + I2C
Keyes 040 Rotary Encoder
Relay (5v) - For Solenoid Valve
Relay (5v) - For Flow Sensor
Flow Sensor (5v)
Solenoid Valve (12v)
Q2: Is it wise to mount everything on a single prototype board?
The circuit worked well on bread-board - behaves sporadically when all components are mounted on a proto-board.
Q3: Connected Question - How do I deal with memory leakage? Question to be dealt with later - once power supply issue is resolved.
Can someone please help me "unhold" this question?