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Added message types
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gl3nni3
2019-03-11 10:19:54 +01:00
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@@ -200,12 +200,18 @@ Every telegram sent is echo'd back to Rx, along the same Bus used for all Rx/Tx
## Ems Plus ## Ems Plus
In this chapter we will report our findings on the ems plus. In this chapter we will report our findings on the ems plus.
### EMS Plus byte layout ### Message layout
| 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| - | - | - | - | - | - | - | - | | - | - | - | - | - | - | - | - |
| 18 | 00 | FF | 03 | 01 | A5 | 28 | 46| | 18 | 00 | FF | 03 | 01 | A5 | 28 | 46|
|transmitter| receiver | ems plus mark | message type | offset | ? | value | cnc |transmitter| receiver | ems plus mark | message type | offset | ? | value | cnc
### Message types
| Message type | Definition |
|--------------|---------------------|
| 03 | Set temperature |
| 00 | Current temperature |
## The ESP8266 Source Code ## The ESP8266 Source Code
`emsuart.cpp` handles the low level UART read and write logic to the bus. You shouldn't need to touch this. All receive commands from the EMS bus are handled asynchronously using a circular buffer via an interrupt. A separate function processes the buffer and extracts the telegrams. `emsuart.cpp` handles the low level UART read and write logic to the bus. You shouldn't need to touch this. All receive commands from the EMS bus are handled asynchronously using a circular buffer via an interrupt. A separate function processes the buffer and extracts the telegrams.