david.tahir/QuadMeUp_Crossbow
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Channel ID added to protocol

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Pawel Spychalski (DzikuVx)
2017-09-23 15:46:54 +02:00
parent cac6172d06
commit e07b045cbe
1 changed files with 4 additions and 3 deletions
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README.md
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@@ -6,10 +6,11 @@ Cheap DIY RC link based on LoRa 868MHz modules
| Byte | Description | Notes | | Byte | Description | Notes |
| ---- | ---- | ---- | | ---- | ---- | ---- |
| 0 | Preamble | "Q" 0x51 | | 0 | Preamble | "Q" 0x51 |
| 1 | Frame type & Payload Length | bits 7-5 defines frame type, bits 4-0 payload length | | 1 | Channel ID | channel used for comunication between TX and RX |
| 2 | Packet ID | | | 2 | Frame type & Payload Length | bits 7-5 defines frame type, bits 4-0 payload length |
| 3 | Packet ID | |
| 4 - 36 | Payload | 32 bytes max | | 4 - 36 | Payload | 32 bytes max |
| payload length + 3 | CRC | XOR of all previous bytes | | payload length + 4 | CRC | XOR of all previous bytes |
## Frame types ## Frame types