Remove noise from dc motors

Other Hardware General Electronics
21

Paul_KD7HB:
This makes ask about the type of motor. Do they have brushes? More than likely the problem is the change in current, not voltage.

Paul

Why do you think so? Voltage drop due to high current draw (internal battery resistance plus resistance of contacts and wires) may be the reason.

22

Increased current causes stronger magnetic fields, which may upset a magnetometer.
Dropped voltage tends to result in resets.
I'm also in the "current" camp :slight_smile:

23

wvmarle:
Increased current causes stronger magnetic fields, which may upset a magnetometer.
Dropped voltage tends to result in resets.
I'm also in the "current" camp :slight_smile:

But OP does NOT use a magnetometer. I think it is a great flaw of the current hypothesis :wink:

24

Smajdalf:
But OP does NOT use a magnetometer. I think it is a great flaw of the current hypothesis :wink:

Don't let such pesky details get in the way of an otherwise perfectly good hypothesis :slight_smile: