From 4c4593412859f8181c02bccbeae58659af37ec18 Mon Sep 17 00:00:00 2001
From: GHOSCHT <31184695+GHOSCHT@users.noreply.github.com>
Date: Mon, 11 Apr 2022 19:16:49 +0200
Subject: [PATCH] Add first communication protocol draft

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 docs/communication.md | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 docs/communication.md

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+# Heliox communication protocol
+
+## Basic data structure
+
+The following table describes the bit pattern for a successful communication with heliox devices.
+
+|       0-15        |    16-22     |        23         |         24-31         | 32-(32+8*x) |
+| :---------------: | :----------: | :---------------: | :-------------------: | :---------: |
+| Magic Number (HX) | Message Type | Parity Bit (even) | Data Length (x Bytes) |    Data     |
+
+## Message Types
+
+| 0   | Data            |
+| --- | --------------- |
+| 1   | Control         |
+| 2   | Status Messages |
+| 3   | Confirmation    |
+| 4   | Debug           |