Although the ESP32 Arduino Core isn't mature yet, we're just checking how far we get when we try to run ESP Easy Mega on this module.
One could argue that the ESP32 module (running on RTOS with a dual core) would rather deserve a total rebuild from scratch, but that would require a new github project and some developers with a lot of spare time. As my spare time is limited, this experiment is just about getting the existing ESP Easy code to work on ESP32 Arduino Core without too much effort.
The good news: Some basic stuff already seems to work:
Current focus is to get the ESP Easy Mega framework working as development target for the V2.1 branch. Framework means all code without plugins. But as we can't really verify some parts of the framework without any plugins, a few basic plugins are included in the testbed. So the scope is to get these parts working:
- ESP Easy Mega Framework
- Controller plugin C001 (Domoticz)
- P001 - basic IO stuff
- P002 - basic Analog readings
- P003 - counting, to verify ISR workings
- P014 - to verify I2C workings
Verified to work
- Webserver GUI
- SPIFFS filesystem
- Wifi connection
- HTTP client
- Basic IO: GPIO, PWM, Pulse
- Analog inputs
- Rules engine
- OTA (using espota tool)
- I2C Clock Stretching
- Dir info on filesystemcheck call
Stuff used to get things going:
- Wemos Lolin32 Lite
- Arduino 1.8.5: https://www.arduino.cc/en/Main/Software
- ESP Arduino Core: https://github.com/espressif/arduino-esp32 (use the commit dated: 2017-12-19)
- Webserver library: https://github.com/nhatuan84/esp32-webserver
- Copied DNS server library from ESP8266 Arduino core
- Copied latest libraries from ESP Easy github
- Latest ESP Easy source: https://github.com/letscontrolit/ESPEasy/commits/mega
- Exclude the following plugins from the project, these will currently not compile without errors:
Boot log on first upload to ESP32 module:
INIT : Booting version: (custom) INIT : Cold Boot FS : Mounting... E (41) SPIFFS: mount failed, -10025 FS : Mount failed FS : Mount failed RESET: Resetting factory defaults... RESET: Cold boot RESET: formatting... RESET: formatting done... FILE : Saved /config.dat FILE : Saved /security.dat RESET: Succesful, rebooting. (you might need to press the reset button if you've justed flashed the firmware) ets Jun 8 2016 00:22:57 rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT) configsip: 0, SPIWP:0xee clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00 mode:DIO, clock div:1 load:0x3fff0010,len:4 load:0x3fff0014,len:812 load:0x40078000,len:0 load:0x40078000,len:10164 entry 0x400789f8 ⸮U INIT : Booting version: (custom) INIT : Cold Boot FS : Mounting... INIT : Free RAM:162772 INIT : I2C INIT : SPI not enabled WIFI : AP Mode disabled WIFI : AP Mode ssid will be ESP_Easy_0 with address 192.168.4.1 WIFI : Could not connect to AP! WIFI : AP Mode enabled WD : Uptime 0 ConnectFailures 0 FreeMem 109764
If you want to compile your own binary, do not use the latest Arduino ESP32 core, it has a SPIFFS bug and your ESP32 will not boot!
To go the easy route, just use the prebuild binary:
Download this zip package and unpack to your local drive (windows only)
Two cmd files are available, one to flash using serial and one to flash using OTA. For fresh units, you need to flashserial first...
This firmware was build on Wemos Lolin32. It may work on other modules but this has not been tested...
Arduino ESP32 Core from 2017-12-19
ESPEasy source from 2018-03-30
- Highly experimental ESPEasy32 R20100