Problems using WiFi Module with Prop Mini

Mike Green

I've hooked up a SIP WX Module to the Prop Mini's PropPlug pins. The last 4 SIP pins (DO,DI,/RES,Gnd) on the WX are supposed to be directly connectable to the Mini's programming pins (Rx,Tx,RESn,Gnd) along with Vin. I always get a -1 error downloading a program using Proploader. What am I missing? The WX is configured properly in STA mode via the web interface and the ASC LED flashes appropriately.

Rayman

Isn't there a DTR pin? I thought that should go to Prop RESn...

Rayman

Ok, looks like DTR is only in the DIP module...
But, looks like you can still run a jumper wire to the DTR hole...

Clock Loop

Ok, THIS WILL CONFUSE PEOPLE, BECAUSE THE MODULE HAS THE PROPPLUG LABEL text on it, but the module cannot ACT LIKE a prop plug using the RES line.
This is where you PLUG a prop plug to PROGRAM THE ESP8266 (not the other way around)
The module datasheet shows the RES line as input only.

This means its ONLY used to reset the module its self. (its the reset line for the esp8266)
So RES is meant to be used to reset the wifi, and cannot be used as an output.




ALSO!!!

I think I had issues also with the RTS line to control a props reset, so i reconfigured it to use the CTS line (IO13) in the web interface to control a props reset, works fine. (cts is one of the SIP pins)


I did a bit of a writeup on the parallax esp8266 device -->https://forums.parallax.com/discussion/comment/1453097/#Comment_1453097

This image shows a prop plug programming the device, so the RES line on the module is INPUT ONLY.
Good luck and have FUN!

P.S. if your modules web page doesn't show the ability to choose the reset line you need to update your modules firmware.

https://www.parallax.com/sites/default/files/downloads/32420-Parallax-ESP-2016-11-02-1804-e.zip Upload Date Wed, 2017-02-01 15:59
Im not sure if the above firmware has the updated web firmware to allow selecting the reset line...

It talks about it in the firmware guide --->https://www.parallax.com/sites/default/files/downloads/32420-Parallax-Wi-Fi-Module-API-v1.0.pdf
You can set the reset line using postman addon for firefox to send commands to the module.
If you want newer firmware and can't build your own, i can send you an OTA file, PM me.

Module datasheet: https://www.parallax.com/sites/default/files/downloads/32420-Parallax-WX-WiFi-Module-Guide-v1.0.pdf