ESP8266 Community Forum

- Sat Apr 11, 2015 3:46 am #14163 Hi

I have a NodeMCU and use the Arduino IDE. Is there a way to upload compiled code easily because today I have to unplug USB cable press and hold Flash button and replug USB... A little bit annoying when you just have to click Save in ESPlorer (Lua Firmware). Ok Lua is interpreted on the ESP where sketch is compiled on PC and Flahed via esptool... But how do you do?

Thanks

- Sat Apr 11, 2015 4:05 am #14164 If your USB TTL adapter has both DTR and RTS it is easy peasy.

Just connect DTR to GPIO0 and RTS to REST or CH_PD together. Then when you press the upload button ESP8266 will enter bottloader mode automatically.

CHERTS has a schematic for this: viewtopic.php?f=9&t=820

- Sat Apr 11, 2015 6:54 am #14167 I have the NodeMCU dev kit, it include a USB-TTL and there is a Flash button to activate it. Strangly this work if I flash using the ESPFlasher...