An attempt to consolidate some bits of information about divoom into a clean python3.6 package

1. https://github.com/MarcG046/timebox/blob/master/doc/protocol.md
2. https://github.com/mumpitzstuff/fhem-Divoom
3. https://gitlab.com/ursfassler/divoom-playground

Features

• (Implemented parts of) the protocol is fully tested
• Server is decoupled from control (via redis pubsub) - the connection can remain open permanently
  • Writing a web front end for this should be easy

Implemented parts of the Protocol:

• Switch view
• Send image
• Toggle Radio
• Toggle Mute
• Change radio frequency
• Set Volume
• (Extra) Helper to convert images to the required format

Missing:

• Set time
• Animations
• Weather
• Calendar
• Notifications

Things I do not understand

How to set brightness to an absolute value:

Sending 0x32 (brightness) with different levels has always the same output: the brightness cycles between OFF, LOW, MED, HIGH

Sending 0x74 does allow me to do OFF, LOW, HIGH reliably.. but from the app I can set more brightness levels

Replies to changing views

Smashing the SWITCH button outputs:

command 0x46 data [0, 0, 6, 255, 0, 0, 0, 0, 100, 1, 75, 0, 0, 75, 0, 0, 255, 0, 0, 169, 132, 0]
command 0x46 data [1, 0, 6, 255, 0, 0, 0, 0, 100, 1, 75, 0, 0, 75, 0, 0, 255, 0, 0, 169, 132, 0]
command 0x46 data [2, 0, 6, 255, 0, 0, 0, 0, 100, 1, 75, 0, 0, 75, 0, 0, 255, 0, 0, 169, 132, 0]
command 0x46 data [3, 0, 6, 255, 0, 0, 0, 0, 100, 1, 75, 0, 0, 75, 0, 0, 255, 0, 0, 169, 132, 0]
command 0x46 data [4, 0, 6, 255, 0, 0, 0, 0, 100, 1, 75, 0, 0, 75, 0, 0, 255, 0, 0, 169, 132, 0]
command 0x46 data [5, 0, 6, 255, 0, 0, 0, 0, 100, 1, 75, 0, 0, 75, 0, 0, 255, 0, 0, 169, 132, 0]
command 0x46 data [5, 0, 6, 255, 0, 0, 0, 0, 100, 1, 75, 0, 0, 75, 0, 0, 255, 0, 0, 169, 132, 0]
command 0x46 data [0, 0, 6, 255, 0, 0, 0, 0, 100, 1, 75, 0, 0, 75, 0, 0, 255, 0, 0, 169, 132, 0]

1. what are these values?
2. Why is 5 repeated?

Command(Commands.SWITCH_VIEW, Views.CLOCK_24, extra_bytes=[11, 22, 33]),
Command(Commands.SWITCH_VIEW, Views.STOPWATCH, extra_bytes=[44, 55, 66]),
Command(Commands.SWITCH_VIEW, Views.SCORE, extra_bytes=[77, 88, 99]),
Command(Commands.SWITCH_VIEW, Views.TEMP_C, extra_bytes=[100, 111, 122]),

command 0x46 data [0, 0, 6, 255, 0, 0, 0, 0, 100, 1, 11, 22, 33, 100, 111, 122, 255, 0, 0, 169, 132, 0]

len == 22

indexes:
0 = view, but why is 5 repeated?
1.. 10 == ?
11 = brightness
12 = ?
10:13 == CLOCK rgb
13:16 == TEMP_C rgb
?

{'TEMP_COLOR': [100, 111, 122],
 'CLOCK_COLOR': [11, 22, 33],
 'VIEW_ID': 4,
 'BRIGHTNESS': 100,
 'FIRST_PART': [0, 6, 255, 0, 0, 0, 0, -1, 1], # -1 because the value is known to be brightness
 'LAST_PART': [255, 0, 0, 169, 132, 0],
}