Hi guys,
I am planning on connecting a temperature sensor which has no data sheet. I am unable to find the output current of the temperature sensor.I hence want to know the exact resistance offered by the gpio 117(p9 expansion, pin 25)so that I can simulate the current flowing through it and do a dry run with an ammeter and external resistance and measure the current.
The datasheet shows the pull up or pull down resistors that can be enabled on each GPIO pin. It also shows the drive current of the pin. I don’t believe there is a resistance value documented per GPIO pin.
Gerald
Okay.Thanks!
Could somebody find the pulldown/up impedance on the TRM or specsheet ?
I’ve run find all over the documents and cannot find the impedance of pull resistors 