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beckdac / ESP8266-transparent-bridge

Absolutely transparent bridge for the ESP8266
GNU General Public License v2.0
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Uploading program to arduino wirelessly #45

Closed rajibgupta closed 8 years ago

rajibgupta commented 8 years ago

Hello, It isn't quite clear in the post about how to perform the wireless program upload to a microcontroller. Can you please help me a bit in how to go about it ?

dima-ch commented 8 years ago

Hello, rajibgupta

  1. Setup USAT bootloader (https://github.com/Optiboot/optiboot) or use arduino.
  2. Connect esp8266 to microcontroller or arduino: RX--->TX TX--->RX VCC--->VCC = 3.3V GND--->GND Make sure that the power voltage of microcontroller equals 3.3V.
  3. Reset microcontroller and upload your sketch using avrdude's socket port, e.g. avrdude -c avrisp -p m328p -P net:192.168.4.1:23 -F -U flash:w:mySketch.hex:i while LED of bootloader is flashing
rajibgupta commented 8 years ago

If we have to reset the controller manually, then what's the point of wirelessly uploading?

beckdac commented 8 years ago

You reset using telnet with the commands from the README.md:

++++AT GPIO2 <0|1|2 100> # 1: pull GPIO2 pin up (HIGH) 0: pull GPIO2 pin down (LOW) 2: reset GPIO2, where 100 is optional to specify reset delay time in ms (default 100ms)

Connect the ESP GPIO2 to your AVR RESET pin.