playground-esp32/esp-idf-opentherm
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Hello OT

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Signed-off-by: Mikhail Sazanov <m@sazanof.ru>
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Mikhail Sazanov 2024-06-24 20:58:38 +03:00
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| Supported Targets | ESP32 | ESP32-C2 | ESP32-C3 | ESP32-C6 | ESP32-H2 | ESP32-S2 | ESP32-S3 |
| ----------------- | ----- | -------- | -------- | -------- | -------- | -------- | -------- |
| | ✓ | ? | ? | ? | ? | ? | ? |
# ESP-IDF Opentherm
This component provide an implementation of Opentherm protocol with ESP-IDF. Tested on ESP-IDF > 5 version.
## How to Use Example
Before project configuration and build, be sure to set the correct chip target using `idf.py set-target <chip_name>`.
### Hardware Required
* A development board with normal LED or addressable LED on-board (e.g., ESP32-S3-DevKitC, ESP32-C6-DevKitC etc.)
* A USB cable for Power supply and programming
See [Development Boards](https://www.espressif.com/en/products/devkits) for more information about it.
### Configure the Project
Open the project configuration menu (`idf.py menuconfig`).
In the `OpenTherm Configuration` menu:
* Select GPIO in pin
* Select GPIO out pin
### Build and Flash
Run `idf.py -p PORT flash monitor` to build, flash and monitor the project.
(To exit the serial monitor, type ``Ctrl-]``.)
See the [Getting Started Guide](https://docs.espressif.com/projects/esp-idf/en/latest/get-started/index.html) for full steps to configure and use ESP-IDF to build projects.
## Example Output
```text
I (9369) OT: ====== OPENTHERM =====
I (9369) OT: Free heap size before: 293684
I (9369) OT: Central Heating: OFF
I (9369) OT: Hot Water: OFF
I (9369) OT: Flame: OFF
I (9379) OT: Fault: NO
I (9659) OT: Set CH Temp to: 60
I (9929) OT: Set DHW Temp to: 59
I (10199) OT: DHW Temp: 0.0
I (10469) OT: CH Temp: 44.3
I (10739) OT: Slave OT Version: 0.0
I (11009) OT: Slave Version: C07FA308
I (11279) OT: Slave OT Version: 3.0
I (11279) OT: Free heap size after: 293684
I (11279) OT: ====== OPENTHERM =====
```
## Troubleshooting
For any technical queries, please open an [issue](https://github.com/sazanof/esp-idf-opentherm/issues) on GitHub. We will get back to you soon.