I’ve connected the Arduino pro mini (328/5V) to my pcb. Of course it’s not directly soldered to the PCB but using a connector, so I can replace the parts that get bricked during development. I’ve downloaded the blink example using something like this. Directly after flashing it worked, but once I disconnected the flashing adapter […]

… an ohmic load (Thank you Axel) shows the same behavior (spikes on Vout) as seen in the previous post. Fortunately I’ve spent some space on the pcb for an optional filter that has now become mandatory. The spikes do not change with load or input voltage. I took a closer look and they are […]

This month’s come together will be held on 2019-02-13, 8pm not at our regular pub (see our mailing list for details).

I’ve run the power supply under load. As you can see I’ve not yet removed the screen protector foil from my multimeter connected the cables in the wrong direction so the current is negative load current @ Vout=5V [A] The load was a florist wire that accidentally had the correct length to have a resistance […]