My DiVinci 1.0 running RAMPs 1.4 started to behave weird lately. If the printer is off (Ramps not getting 12v) but the Mega is being powered via USB (5v only), the thermistor reads perfectly fine. But when the printer is powered on, it instantly stops reading.
It's a generic 100k Thermistor with option 5 in Marlin.
Put on another one, same reading. Even when it's dangling outside the hotend, no shorts.
I've also swapped it to T2/pin 15 (default is T0/13) on Ramps/Marlin, same thing.
Was working fine for the past 3 years till today. I did had a plug on the thermistor wires and experience loose connection before, could it somehow fried the analogue reading on Ramps? Are both pin 13 and 15 sharing hardware? Bed thermistor (T1/pin 14) is working perfectly fine by the way.
![FK9XwDA.jpg]( "FK9XwDA.jpg")
Will I have to replace the Arduino or Ramps?
Anyone experience this before?
It's a generic 100k Thermistor with option 5 in Marlin.
Put on another one, same reading. Even when it's dangling outside the hotend, no shorts.
I've also swapped it to T2/pin 15 (default is T0/13) on Ramps/Marlin, same thing.
Was working fine for the past 3 years till today. I did had a plug on the thermistor wires and experience loose connection before, could it somehow fried the analogue reading on Ramps? Are both pin 13 and 15 sharing hardware? Bed thermistor (T1/pin 14) is working perfectly fine by the way.
Will I have to replace the Arduino or Ramps?
Anyone experience this before?