I have a few Wroom32 boards but I was curious about what I'm doing wrong.
So, at the end I've got it flashed, the correct procedure came from this topic:
https://community.openenergymonitor.org/t/esp32-firmware-problems/15685
The bootloader.bin
and partitions.bin
files needs to be flashed to.They can be downloaded here:
https://github.com/OpenEVSE/ESP32_WiFi_V4.x/releases
You can find the files under release V4.1.1 in Assets
After that, using the esptool.py the command will be (change the port number to one you have):
python -m esptool --chip esp32 --port com2 --baud 460800 --before
default_reset --after hard_reset write_flash -z --flash_mode dio
--flash_freq 40m --flash_size detect 0x1000 bootloader.bin 0x8000
partitions.bin 0x10000 firmware.bin
Thank you Javierfor your king help!
Hi Javie,
Which environment do you use for compiling? I use VS Code with Platformio addon on Windows 10.
After importing the arduino project as you did I still have the same "missing Arduino.h" compile error.
Also I need to comment out the line
platform = espressif32@1.11.1
because it is not able to find it and uncomment the line:
#platform = https://github.com/platformio/platform-espressif32.git
After that, building the project it downloads the platform-espressif32and fails with "Arduino.h not found" error.
So I think there is something missing in my dev environment.
I'm running windows 10 with visual studio code + platformio
However, I had already installed Arduino IDE, so I don't know if reusing some of the libraries
Just now I have recompiled the code on platformio, in this case what I did was to decompress the github 4.1.2 zip file to a location on my drive, then on Platformio click on Open Project and point the project to that location. I did recompile and flashed and worked first time!
However, I do not know how to change the board, so it used the wroom32 board
Even if I knew how to change the board , I don't have an MCU32 board to test
ok, I have recompiled the code using "import Arduino Project", selected the (first) Node MCU 32S (not sure why there more than 2 instances).,I did NOT select "Use libraries installed by Arduino IDE"
Then I pointed to the location of the decomppressed zip folder. Afterwards I compiled and after some warnings it finished compiling with the resulting firmware files
As I said if I had a board I would flash to test, but I don't have one
I'm an idiot!
Just found that I was compiling with the "default_envs = openevse_wifi_v1" instead of "default_envs = openevse_nodemcu-32s"
on the platformio.ini file
This explains why the code would not work for you!
I tried to compile and the first time I got an error:
FileNotFoundError: [Errno 2] No such file or directory: 'D:\\Downloads\\ESP32_WiFi_V4.x-4.1.2\\.pio\\build\\openevse_wifi_v1\\.sconsign39.tmp'
After that I tried again and now compiled succesfully
I have uploaded the files to the same location:
https://www.mediafire.com/folder/mxuon5qisbfx3/nodemcu-32+code
I will now try compile fronm scratch
I will let you know how it goes
NOW I have compiled from scratch:
From platformio Open Project , select location of unzipped folder
Then modify platformio.ini file, so it says: "default_envs = openevse_nodemcu-32s"
Compile and flash
I have copied the last version of the files same place:
https://www.mediafire.com/folder/mxuon5qisbfx3/nodemcu-32+code
Hope this works for you
I don't know!
How can I check?
I've just installed a new VSCode + Platformio environment on a fresh Win10 machine, downloaded the the latest V4.1.3 project from github and tried to compile it, without success so far. It fails immediately.
Please take a look on the picture attached. You will also see how to check the espressif32 version that you are using.
By the way, the binary you made yesterday has been compiled from a V4.1.2dev version source code. Can you double check which version of code are you using?
Thank you!
It seems I may have two exprssif libraies installed, see snapshot
I don't know how to check the version, this is all I could get
Javier,
OpenEVSE has not officially tested 8.2.0 yet. We ship with the latest fully tested release, which is 7.1.3.
flash.bat just automates the commands:
Required only the first programming
avrdude -c USBasp -p m328p -U lfuse:w:0xFF:m -U hfuse:w:0xDF:m -U efuse:w:0x05:m
loading firmware
avrdude -c USBasp -p m328p -U flash:w:open_evse.hex
The EEPROM loads the factory default settings (not required).
Chris
Chris
Thanks for your response
I thought 8.2.0 was a stable ( tested) version
I am after support for OCPP, and - apparently- is supported on ver 8.2.0
Is there any other version that has OCPP support?
Javier
Javier Mitchell
Hi
Just received my openevse 5.5 board
However, upon checking some of the options it seems some are missing
My version is 7.1.3, but the latest is 8.2.0.
I bit dissapointed that I did not received a module with the last release
Looking at the upgrade instructions, and they don't seem to have been updated
https://openevse.dozuki.com/Guide/How+to+Load+OpenEVSE+Firmware+(WinAVR)/7
On one of the last steps, it mention yo need 3 files; flash.bat, open_evse.hex and eeprom_24.bin
However, on the repository for the last release ( 8.2.0) there are a couple of hex files ( I assume I should use openevse.hex), there is no bin o flash.bat files
What am I missing?
should just run the command to flash the hex file as per the Readme file:
`$ avrdude -p atmega328p -B6 -c usbasp -P usb -e -U flash:w:firmware.hex`
Any help appreciated