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markniu / PandaZHU

3D printer control board based on ESP32,support 8 Driver motors.
69 stars 10 forks source link

ADC question #1

Closed luc-github closed 3 years ago

luc-github commented 3 years ago

Hi nice board, Any plan to use external ADC instead of ESP32 ones to avoid the 30~250 degres limitation ?

markniu commented 3 years ago

Thanks! and your ESP3D project is great! and is really useful.

I think it's no need to use external ADC,I find most of the printer's temperature is not accurately at above 260 degree because of the 100K thermistor. so if we want to print at higher temperture, the best way is PT100 with MAX31865.

luc-github commented 3 years ago

Thank you ^_^ one reason also is the failure detection (no thermistor error is not detected) , and room temperature detection is always incorrect which is confusing for some end users. I agree they are edge case and external adc are nice to have, but I got some safety concern feedback so better ask. 😸 I heard new S3 adc are better,TBC

I plan to order one of your board but will be in october after my moving .

markniu commented 3 years ago

Hi Luc, I would like to send one board to you for your develop, you can send me(niujl123@sina.com) your shipping address.

I plan to order one of your board but will be in october after my moving .

luc-github commented 3 years ago

Hi Mark, I just sent you an email ^_^