ESP8266 serial WIFI wireless module: Difference between revisions

Revision as of 03:36, 13 October 2015

picked up 3 3.3 v versions of these. It's been fun trying to get them to work.

1. the 3.3v fdti seems to be 5v

2. the firmware seems bust:

<Crazy garbage characters>
Ai-Thinker Technology Co. Ltd.

invalid

then I enter:

AT+RST

and get

ERROR

going to try and find an updated firwmare and flash it.

---

time passes, I enter , stage left.

python esptool.py -p /dev/ttyUSB0 write_flash 0x000000 "AI-v0.9.5.0 AT Firmware.bin"

Had to make sure that ch_pd was to ground and gpio_0 was high ( vcc)

setserial -g /dev/ttyUSB0
/dev/ttyUSB0, UART: unknown, Port: 0x0000, IRQ: 0, Flags: low_latency

screen /dev/ttyUSB0

and now I get much better results:

AT

OK
AT+RST

OK

google searches of note:

+site:hackaday.com esp firmware

@@ Line 21: / Line 21: @@
 going to try and find an updated firwmare and flash it.
+---
+time passes, I enter , stage left.
+I found the firware on a dodgey looking site. http://arduino-er.blogspot.ca/2015/05/flash-esp8266-firmware-using-esptoolpy.html
+ python esptool.py -p /dev/ttyUSB0 write_flash 0x000000 "AI-v0.9.5.0 AT Firmware.bin"
+Had to make sure that ch_pd was to ground and gpio_0 was high ( vcc)
+ setserial -g /dev/ttyUSB0
+ /dev/ttyUSB0, UART: unknown, Port: 0x0000, IRQ: 0, Flags: low_latency
+screen /dev/ttyUSB0
+and now I get much better results:
+<pre>
+AT
+OK
+AT+RST
+OK
+</pre>