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PicoEMP – A low-cost Electromagnetic Fault Injection (EMFI) tool

(github.com)
55 points transpute | 1 comments | 25 Jun 25 03:05 UTC | HN request time: 0s | source
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fxtentacle ◴[25 Jun 25 05:54 UTC] No.44374012[source]▶
Are there any affordable open source projects in the opposite direction?

I’ve built a rather complex robot with Nema steppers. Now something is messing with the control board and causing the CPU to glitch. Physically apart from the robot, the CPU board works fine for weeks. It also has a completely separate power circuit with optocouplers. So my guess is that it might be the power supply or one of the motors emitting electromagnetic interference. But how would I measure that?

replies(3): >>44374194 #>>44379027 #>>44382919 #
1. ranger_danger ◴[25 Jun 25 16:21 UTC] No.44379027[source]▶
Can you only run one stepper at a time and see if a specific one(s) is causing the issue? Maybe it's physically closer or has a better line of sight to the CPU? Can you shield the board the CPU is on?