- Mon May 18, 2015 8:21 pm
#17804
@martinayotte : I have understood. The circuit has been running well. Thank you very much.
- Thu May 21, 2015 5:39 pm
#18124
I have a similar kind of question so I hope its ok if I just use this thread too. GPIO 0 and 2 on my esp8266-01 are used to control mosfets which then control some leds. The mosfets control pins are usualy tied to ground so that the light can't lite up in an undefined controller-state. The problem here is (again) that the ESP won't boot into the normal mode if both of them are grounded.
I am using 10K resistors at the moment. I have read somewhere that it would work with resistor values >= 33K Ohm. Is that right? Or is there another way to get this done?
Thanks for the help!
I am using 10K resistors at the moment. I have read somewhere that it would work with resistor values >= 33K Ohm. Is that right? Or is there another way to get this done?
Thanks for the help!
- Fri May 22, 2015 9:41 am
#18176
That's all depends of your circuits.
If your mosfets need to be grounded at startup and the GPIOs needs to be pulled-up, then you need a second stage of N-mosfets to invert the logic states (or use P-channel mosfets).
If your mosfets need to be grounded at startup and the GPIOs needs to be pulled-up, then you need a second stage of N-mosfets to invert the logic states (or use P-channel mosfets).
- Sat May 23, 2015 9:57 am
#18263
It would be great if the FAQ had some simple circuits centered around how to leverage GPIO0 and GPIO2 without impacting the boot functionality... I know its an area many struggle with. Driving a LED, Driving a MOSFET, reading a button, something to suppress the bootloader serial output, etc.
Has anyone seen a resource like that?
Has anyone seen a resource like that?
