D Williams asked 8 years ago
Hi forum,
when uploading to my ESP201 (yes all connections, temporary and permanent are good) Pin 100 is taken low for the duration of the upload and then released and the module repowered to put it into run mode. I get this in the Serial monitor instead of the Server details I am expecting
ets Jan 8 2013,rst cause:4, boot mode:(1,7)
wdt reset
Anyone any ideas? Where have I gone wrong THIS time?
D Williams answered 8 years ago
Ah and sometimes I get this
ets Jan 8 2013,rst cause:1, boot mode:(3,4)
load 0x4010f000, len 1384, room 16
tail 8
chksum 0x2d
csum 0x2d
v09f0c112
~ld
I don’t get this with any other ESP’s I use and am unsure as to whether it is showing a faulty 201 module or is a symptom of something I’ve done wrong.
Rui Santos Staff answered 8 years ago
Do you have GPIO 15 connect to GND at all times?
Can you read this thread carefully? https://github.com/esp8266/Arduino/issues/1328
In summary, with that board (ESP201), you should add a capacitor in the GND and VCC rails.
You should also make sure that you are using a stable power supply (supplies enough amps)