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- LED indication,
- control via [remote display](https://github.com/openhp/Display/) or local Serial (UART 5V).
<br><br>
<img src="./m_c_assembly_completed.jpg" width="500"><br><br>
<img src="./m_controller_and_display.jpg" width="800"><br><br>
## Refrigeration schemes supported
- Heat Pump (HP) with Electronic Expansion Valve (EEV),
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## Installations supported
- Indoor: a house or technical building with an almost stable temperature,
- Outdoor: harsh climatic conditions taken into account. Outdoor HP installations tested down to a minus 32 °C.<br><br>
<img src="./m_controller_and_display.jpg" width="700"><br><br>
## Changelog and history
- 2018: PCB prototype, first real installation,
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- download PCB Gerber file [here](./Valden_HeatPumpController_Gerber.zip) or get your own copy {-link there-} ,
- order electronic components, see BOM (Bill Of Materials) appendix,
- solder electronic components. {- assembly instructions here-}<br><br>.
<img src="./m_c_assembly_completed.jpg" width="500"><br><br>
## Firmware upload
This process is the same as for other Arduinos: