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ESP-IDF based software for controlling a Mitsubishi Heatpump via the CN105 interface

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HackVac

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Hacking my heatpump for fun and...likely cold and ruins... (actually probably not cause this is going to be done super carefully but it's a fun image).

third_party contains the xtensa-esp32-elf gcc toolchain and the esp-idf download.

wget https://dl.espressif.com/dl/xtensa-esp32-elf-osx-1.22.0-80-g6c4433a-5.2.0.tar.gz
tar xzf xtensa-esp32-elf-osx-1.22.0-80-g6c4433a-5.2.0.tar.gz
git clone --recursive https://github.com/espressif/esp-idf.git

Next setup python virtualenv:

virtualenv venv
source venv/bin/activate
pip install -r

To build, from the src directory:

make -j5 all

Or to use the Makefile's little serial monitor/flash interface run

make monitor

The initial configuration will have the esp32 create a config wifi network called hackvac_setup with setup cn105rulez.

Unittests

make -f Makefile.host host_build/include/sdkconfig.h
make -f Makefile.host host_build/include/sdkconfig.h  # Twice to ensure creation.
TEST_COMPONENTS=". esp_cxx" make -f Makefile.host V=1 host_build/hackvac_host 

TODOs

  1. Wire up logging to udp port.
  2. Sort out main/event_log.h
  3. Sort out representation of device view of settings vs what is being pushed.
  4. Unittest HalfDuplexChannel timings.
  5. Deploy to device. Design real smoke and burn-in test.
  6. Deploy for real.

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ESP-IDF based software for controlling a Mitsubishi Heatpump via the CN105 interface

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