I use no external volt/ammeter.
The measurements are taken by the microcontroller itself via a AD converter, and displayed on the screen.
I bougth this solenoid (12v , chinese made) years ago from ebay
it´s no longer available .
but the power supply i used may be interesting...
As my annealer logs an displays the data while annealing, i tried a 300 win mag case to melting point.
this is the result:[ATTACH]
X axis ->...
My build is nearly finished.
All functions are done by a ESP32 dual core microcontroller with wlan, bluetooth and a filesystem on board.
Separate names with a comma.