ESP-01 works, ESP-01S doesn't
Posted: Fri Jul 26, 2019 2:47 amHi,
I have struggled with ESP-01S board. I have working codes running on ESP-01 but same codes doesn't work on ESP-01S. I cannot get even basic blink to work. I have tried it with multiple boards, so I think it is not because of bad board.
I run code in with Arduino, and it seems to go in successfully, but it does not run it.
I tried to compare boards manuals, but I have not found solution yet why it doesn't work.
GPIO0 should be HIGH to activate run mode. It is HIGH when I take it out of factory box, but after I download new code into ESP-01S it is no more HIGH. It gives out about 2 volts. 10 kohm resistor from 3,3 to GPIO0 doesn't help.
Does anybody have working ESP-01S boards who can help me with this one?
Thanks
I have struggled with ESP-01S board. I have working codes running on ESP-01 but same codes doesn't work on ESP-01S. I cannot get even basic blink to work. I have tried it with multiple boards, so I think it is not because of bad board.
I run code in with Arduino, and it seems to go in successfully, but it does not run it.
I tried to compare boards manuals, but I have not found solution yet why it doesn't work.
GPIO0 should be HIGH to activate run mode. It is HIGH when I take it out of factory box, but after I download new code into ESP-01S it is no more HIGH. It gives out about 2 volts. 10 kohm resistor from 3,3 to GPIO0 doesn't help.
Does anybody have working ESP-01S boards who can help me with this one?
Thanks