Ok so thanks to your advice i build the seven switch which works fine.
On the same board i build the temperature sensor and that work as well.
BUT i got some VERY strange behaviour that i cannot explain except by Murphy's law.
I am almost writting this to clarify my discovery to myself.
So I plugged my temp sensor on A4 which should be pin number 27 in marlin but on my board it is pin 28 ! i have looked 50 times at the wiring and i am positive. I have no clue why. Next i ll check what pin is A3 (maybe 27?)...
Both sensor works but if i do
TEMP_0_PIN 28
TEMP_BED_PIN 7
OR
TEMP_0_PIN 7
TEMP_BED_PIN 28
I always only got the temperature of the head, never the bed, how is that possible? No idea, i will double check because this looks magical to me. How can the sensor & the pins work but not together? Maybe a software version?
This didn't work. But when i put TEMP_0_PIN 28 It does work fine ( with the extruder pin )
Strangely ( but i have to fomfirm that) TEMP_BED_PIN 28 instead of TEMP_0_PIN 28 does not work, which mean i can never have the temperature of the bed i do not know why but again next time i go down i'll double check that.
I didn't manage to trigger the seven switch but it works otherwise, i tested it with my alimentation. Also on power UP of the sanguino, the led goes on...
So strange things are hapening here, i suspect the ghost of electronically dead poeple to aunt my sanguino.
I have a last question, the MOSFET of the seven switch goes hot and need a heatsink. Why doesn't it have one on the sanguino?
On the same board i build the temperature sensor and that work as well.
BUT i got some VERY strange behaviour that i cannot explain except by Murphy's law.
I am almost writting this to clarify my discovery to myself.
So I plugged my temp sensor on A4 which should be pin number 27 in marlin but on my board it is pin 28 ! i have looked 50 times at the wiring and i am positive. I have no clue why. Next i ll check what pin is A3 (maybe 27?)...
Both sensor works but if i do
TEMP_0_PIN 28
TEMP_BED_PIN 7
OR
TEMP_0_PIN 7
TEMP_BED_PIN 28
I always only got the temperature of the head, never the bed, how is that possible? No idea, i will double check because this looks magical to me. How can the sensor & the pins work but not together? Maybe a software version?
This didn't work. But when i put TEMP_0_PIN 28 It does work fine ( with the extruder pin )
Strangely ( but i have to fomfirm that) TEMP_BED_PIN 28 instead of TEMP_0_PIN 28 does not work, which mean i can never have the temperature of the bed i do not know why but again next time i go down i'll double check that.
I didn't manage to trigger the seven switch but it works otherwise, i tested it with my alimentation. Also on power UP of the sanguino, the led goes on...
So strange things are hapening here, i suspect the ghost of electronically dead poeple to aunt my sanguino.
I have a last question, the MOSFET of the seven switch goes hot and need a heatsink. Why doesn't it have one on the sanguino?