ESP8266 Community Forum

- Fri Nov 14, 2014 3:49 pm #2645 Hi Guys

I have just had my ESP8266 ESP-05 delivered. It has 5 pins!

All listed pinouts are for 4 pins. I assume I have got the latest revision of the device.

I have searched online and I cannot find the assignments for the 5 pin device.

In this post viewtopic.php?f=5&t=28&p=1970#p1970 gbit refers to the 5th pin being a reset, but gives no reference to the pin layout.

Can anybody point me to a pin listing for this version of the ESP-05.

Thanks

- Thu Nov 20, 2014 3:33 pm #3006 I used following pinout (see attachment):
* VCC
* TX
* RX
* GND
* RST

You do not have the required permissions to view the files attached to this post.

- Sat Nov 22, 2014 3:50 pm #3147 I have some of those too. They run at 9600 bauds. Would have been much better to route the programming pin to the header instead of reset. As these are, unless you cut a trace that is pretty short and close to the chip, they cannot be reprogrammed.
Mine have firmware version 0018000902, which is usable, but it would have been nice to be able to upgrade to a version that supports 115200 bauds. Interestingly, at boot up, they seem to briefly output some data much faster than 9600 bauds, then revert to 9600 bauds with a web site:
AT+RST


OK
"Ê+
ÿj™ÿ™RCú™RÆ“AHú
[System Ready, Vendor:www.ai-thinker.com]

The web site points to a Chinese forum,not tried to translate it yet.
I want to use them for a project where I will need a dozen or so (and I will need an external antenna), I certainly do not want to have to hack at a dozen boards, so I will have to pick another module. The good news is that at that price, it wont break the bank

- Sun Nov 23, 2014 10:46 am #3173 I got a batch of ESP-01's with the ai-thinker firmware.

Version:
AT+GMR
0018000902-AI03

Mine defaulted to 9600 too but supported the AT+CIOBAUD=115200 command to change the baud rate to 115200.