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#Esp8266 firmware to work with arduino how to#
#Esp8266 firmware to work with arduino serial#
#Esp8266 firmware to work with arduino code#
#Esp8266 firmware to work with arduino password#
#Esp8266 firmware to work with arduino Bluetooth#

program_rodi.py /tmp/build7763862112848895248.tmp/8266 has a number of advanced features that make it unique from other available modules.

Run the following command specifying the the correct *.hex file.

You should get an IP address like 192.168.4.100

Compile the modified bootloader and flash it to the atmega using a programmer.

Program the new firmware onto the module.

Build modified AT firmware for the ESP8266.

Lastly I’ve modified the python script programmer from sistemasorp to add support so it can work as a client connecting to the ESP8266 for programming.

(I think this is not entirely necessary but made things easier for me) Update: After some testing, I found out that there is not necessary to modify the bootloader, you can omit this step.

Then I’ve modified Arduino’s bootloader to send the ” character so it can be picked up by the programmer script.

And for a script to build and program the ESP8266 you can take a look here.

For a guide on how to install the toolchain, you can follow this guide.

#Esp8266 firmware to work with arduino code#

You can find the code on my esp8266_at fork on my github account.

I’ve added a new AT command called AT+RODI that set the module as an AP, starts the transparent server mode, configures the GPIO used for resetting the Arduino and starts a TCP server on port 1234.

We need to do some modifications to the ESP8266 AT firmware, arduino bootloader and the programmer software in order to successfully use it to program the Arduino, here are the mods: I’m not responsible for any broken Arduino or ESP8266 modules. 😉 Let’s get to work… Connecting all together CAUTION: This assumes you’re using a 3.3V Arduino.

#Esp8266 firmware to work with arduino password#

I found another method that consist on configuring the AP using the wifi_softap_get_config method from the SDK, which lets us set the max_connection parameter. Yet another option is to add a password to the AP. But… we plan to use it only for robots in a summer course, so the security isn’t really important for now. I asked and got this response but wasn’t able to find that method (or variable?). One security issue for this is that it supports up to 5 connections, so is not completely secure. Time for hacking it!Īfter reading through the source code for the AT commands firmware I was able to enable transparent mode when using the module as a server. Bad news, transparent mode is not available when using the module in server mode with the at_v0.20_on_SDKv0.9.3 version of the at command example.

#Esp8266 firmware to work with arduino how to#

I found (again on HaD) a blog that showed how to flash an Arduino via WiFi with these modules, but it uses the ESP8266 to connect to a router, as we’re planning to have a few of this robots, and the student will take these robot and it doesn’t have another way of flashing the chip unless they have a programmer, so this method wouldn’t work for the robots. One thing that I learn from the blog was that I was going to need to use the transparent mode and, of course, use the module as an AP.

#Esp8266 firmware to work with arduino serial#

I wanted to be able to flash the atmega328 inside the robot via WiFi because the robot doesn’t have a USB to Serial converter. Then, I read about the ESP8266 WiFi modules on Hackaday, and started working on a new version of RoDI, this time with WiFi :D. I wanted to to use WiFi, but the cost of the WiFi modules was a problem, since the idea was that the entire robot would cost less than 30 USD.

#Esp8266 firmware to work with arduino Bluetooth#

The first version used a HC-06 Bluetooth module to communicate with the computer.

RoDI is a low cost wireless robot to teach robotics and programming I started developing last year (reminder to self: I still need to post about it), but it wasn’t until a month ago that I started to work on it more often.

I’ve been working on a new robot called RoDI for a summer course at my Alma mater. Proceed with caution or you can break something! A (not so) brief introduction. This is experimental and not exactly for beginners, something may be wrong.