Project: Nano/MPU based Self leveling telescope pier for a mobile observatory. Method: 3 motorized trailer jacks Procedure: Lower jacks until they reach the ground then call a leveling subroutine that is basically a modified digital level program. Problem: Running out of pins. 3 motor direction …

Welcome to the forum I assume that you have used the A* pins as digital pins if required ?

[image] glennash: ANI 218 I2C current sensors Did you mean the INA219 current sensor?

What about this: let all motor directions be wired together and only run one motor at the time. Daisy chain all end stops and use one input. Operating one motor at the time, run it until the end swich is triggered. Then slowly back off the swich.

Current sensor vs limit switch

Projects General Guidance

theboot November 9, 2023, 12:37pm 3

You could use a multiplexer or shift register for extra pins for your buttons

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Current sensor vs limit switch

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