Can a microcontoller be used to replace the "dial knob" function in a 'off the shelf' multimeter(10A max AC/DC). Is it easy to scale and micro control multiple identical multimeters using one microcontroller? All multimeters operating mode is to be set using one centre dial which the microcontroller reads. The rest of the multimeters simply stack behind the top most device with their shell/case taken off.This will save on the bulk of the device shape and "streamline" whatever blob comes out in the end. DiY x-Channel Multimeter - Hope it's a clear visual :)
The dial itself works by simply bridging between many pads on a PCB(check photo). Can the dial(mechanical) be bypassed by micro controller with ability to set the full range of combinations that the dial currently bridges?
The microcontoller would have to remember the active settings for each individual multimeter dial position and maintain them independently.
Would be good if there is a way to only power the micro controller upon need to change settings and power off immediately after setting the relevant multimeter board IC. Saves battery (1x9v)
It is desirable to have everything readable in one glance and therefore all LCD displays are to be lifted off the multimeter PCB and placed to sit all next to one another on the top surface of the combined device.Allows for easy tracking of everything in one place without losing sight of the work area.
How far can the LCD be lifted off the PCB? as the photo shows the LCD is a generic type component... Has anyone tried separating the LCD from a PCB? What max distances can be done?Is 10 cm a possibility?