Review compile instructions Arduino

[davidovitch]

I have compiled the sketch but have not tried it out yet. As an Arduino newcomer I am not 100% sure I am doing the right thing and was hoping someone could review the procedure I am following. I can contribute with a PR for a README file with these compile instructions once completed and reviewed. I have a DIN Rail Energy Monitor with a single ATM90E26 (bought during the CrowdSupply campaign a while ago). I am compiling on Arch Linux and use the standard Arduino IDE. Here are the steps I've followed:

• Install the Arduino IDE (I have version 1.8.9)
• Install the ESP8266 libraries as instructed on https://arduino-esp8266.readthedocs.io/en/latest/installing.html
  • add http://arduino.esp8266.com/stable/package_esp8266com_index.json to the File > Preference > Additional Board URLs field
  • Search for ESP8266 in Tools > Board > Board manager and install
• Install additinional libraries via Tools > Manage libraries:
  • ArduinoJson version 5.13.5 (it probably only requires minor changes but the current implementation of the sketch returned errors with version 6.10.1 due to API changes)
  • U8g2 for the OLED driver (I installed the latest version 2.25.10)
• Include copies of energyic_SPI.cpp and energyic_SPI.h from https://github.com/whatnick/ATM90E26_Arduino in the working directory
• Set the correct compile target under Tools > Board to the LOLIN(WEMOS) D1 MINI Pro, see also https://docs.wemos.cc/en/latest/d1/d1_mini_pro.html. Note that the documentation is for v2.0.0 of the board, while the DIN rail module seems to have v1.1.0

I have the following remaining questions regarding some of the other compile options:

• What CPU Frequency is recommended, 80 or 160 MHz? Or is that just a matter of what to expect from the performance/energy consumption of the device?
• Any other recommendations for the other compile options (such as Flash size, Erase Flash, etc), or just leave everything to its defaults?

EDIT: the original issue incorrectly indicated the compile target for the board was a LOLIN(WEMOS) D1 R2 & MINI.

[davidovitch]

@whatnick or @teaching-innovation when you deployed new firmware for the DIN rail module, at which frequency did you compile it for, 80 or 160 Mhz?