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73 lines
1.4 KiB
Markdown
73 lines
1.4 KiB
Markdown
### CHPC: Cheap Heat Pump Controller v1.0
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```diff
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- NOW: purchasing components and PCBs, development will be resumed after arrival at ~April 2019 !
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```
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## Development
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State: active
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Discussion: https://www.forumhouse.ru/threads/469103/
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## PCB Design
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There are 2 PCB designs: type "F" and type "G".
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Both designs state: beta, untested.
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## Type "F" features:
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- **mostly SMD** componens,
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- **internal power** source,
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- **10** output channels,
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- 4 input channels,
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- 5 relays: 1 * 16A + 4 * 7A,
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- buzzer,
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- EEV support,
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- 16 bit **i2c ADC: on board**,
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- i2c devices: allowed,
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- T sensors: ds18b20 on one lane.
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## Type "G" features:
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- **no SMD** components,
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- **external or board-placed** power source,
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- **5** output channels,
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- 4 input channels,
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- 5 relays: 2 * 16A + 3 * 7A,
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- buzzer,
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- EEV support,
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- 16 bit **i2c ADC: off board**,
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- i2c devices: allowed,
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- T sensors: ds18b20 on one lane.
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# Type "F" PCB
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# Type "G" PCB
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....
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....
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Drafts below.
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Sensors abbreviations:
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| Abbr. | Full name |
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| ----- | -------------------- |
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| Tae | after evaporator |
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| Tbe | before evaporator |
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| Ttarget | target |
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| Tsump | sump |
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| Tci | cold in |
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| Tco | cold out |
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| Thi | hot in |
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| Tho | hot out |
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| Tbc | before condenser |
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| Tac | after condenser |
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| Touter | outer (outdoor) |
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| Ts1 | additional sensor1 |
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| Ts2 | additional sensor2 |
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