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RoyAnderson09/10/2018
Like others I struggled to find documentation on how to get this up and running. It's running now, and I'm providing some info that may be helpful to others.
To Upload to WEMOS 8266 with a FTDI232RL USB To Serial convertor
- There probably are other Arduino IDE settings that work, but I've set Arduino Board to Wemos D1 R1, Baud Rate to 115,200. Set COMM Port to whatever is appropriate for your system, then use the standard Compile and Upload buttons (note the Programmer setting is not used).
- Physical connections from FTD232RL to Wemos are : TX to D9 (RX), RX to D10 (TX), GND to GND, VCC to 3V3, and FTD232 D3 (GPIO0) to FTD232 GND (required to put WeMOS in flash rather than run mode for boot, remove after download complete. You can leave the other connections and the FTD232 connected so you can monitor serial traffic while running).
Note FTD232 CTS and DTR are not needed, also no need for pull up/down resistors, nor a need to push any buttons to reset or start download (but remember D0 to GND during download)
Favorite sample doc as referenced in another post. This is a mod to the original that adds weather display but shows example for buttons, display and web server.
https://www.esp8266.com/viewtopic.php?f=8&t=17740&p=0&e=0&sid=1bad0a8857210af752c18e769bacaa08
TimLeeI'vefound no additional USB to serial converter required, just USB direct from the PC to this board. It has USB client built in. i did need to update with CP210x driver, it's different to the actual Wemos D1 boards.
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