You are reading a single comment by @ltj and its replies.
Click here to read the full conversation.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@ltj
@DrAzzy, if no load is on the 12V output you can see some nasty spikes on the 5V supply. I have observed this behavior myself, but others have also reported this like Paul Stoffregen at PJRC. It might be universal in the sense that the PSU design is pretty standard - they must provide the bulk of the power at 12V. However I have not seen it go past 9-10V so if your regulator/device can cope with this, you might never notice :)