Timeline for How should I interface a solenoid to a RPi GPIO input?
Current License: CC BY-SA 4.0
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| Apr 8, 2021 at 13:17 | comment | added | JRI | Thanks for your time helping me with this. My first take-away point is to use a schottky diode, which seems to be doing the trick of neutralising the inductive spikes. But thanks also for pointing me in the direction of LTSpice. I've grabbed a copy and can now model my own circuits. Using 3Ω for the battery internal resistance and modelling the coil with a 6Ω series resistance (rather than a separate resistor) gives me results that match what I can measure, giving me confidence to build the circuit - which now seems to work fine. | |
| Apr 8, 2021 at 13:10 | vote | accept | JRI | ||
| Apr 3, 2021 at 19:50 | history | answered | Seamus | CC BY-SA 4.0 |