ESP8266 Community Forum

- Wed Jun 24, 2015 1:46 am #21482 I had the same problem, even with pullups etc, the serial adapter was driving GPIO0 the wrong way.

I made a little modification to the arduino serial monitor to allow me to set the DTR and RTS pins.
https://github.com/arduino/Arduino/pull/3386
Hopefully they will pull it.

Now I can hit upload on the arduino IDE and it uploads and starts running, no hardware required.

- Wed Jun 24, 2015 9:17 am #21507 You changed: app/src/processing/app/SerialMonitor.java?
I can not find this file in my Arduino-directory
I am using Arduino 1.65 on W7.

my ESP8266: ESP-01 V2 / ESP-12E (NodeMCU)
ESP8266 Arduino add-on
Arduino IDE 1.6.5

- Sun Jun 28, 2015 5:46 am #21895 Hi @all

little feedback.
Made a little Dev-Board with the informations collected in the past.
- FTDI232 as USB-TTL-Converter, Jumper at 3,3V to have 3,3V-level for TXD and RXD
- a little breakoutboard, with a 5V -> 3,3V-Converter. Input supply from the 5V of the FTDI, Output to feed the ESP8266 (ESP-01)
- Reset and Flash with the schematic of the NodeMCU: http://www.esp8266.com/viewtopic.php?p=21209#p21209
- Reset, CH_PD, GPIO0 with a 10k Pullup to 3,3V
- The ESP8266 and FTDI is on header, to be changed quickly.
==> Result: Flashing and Serial Monitor (out of Arduino IDE 1.6.5), and normal Operation working without changing the wiring. Thats what I wanted to have.

devboard.jpg

so long... brutzler

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my ESP8266: ESP-01 V2 / ESP-12E (NodeMCU)
ESP8266 Arduino add-on
Arduino IDE 1.6.5

- Sun Jun 28, 2015 2:23 pm #21916 the nodemcu firmware is published in their git repo: https://github.com/nodemcu