Balboa_GS_Interface.cpp
Balboa_GS_MQTT.ino
Stop
and Reset
MQTT interface in Balboa_GS_MQTT.ino
updateTemperature
added to set a temperature value instead of "push" button x number of timesPIN | Description |
---|---|
PIN 1 | Functionality unclear! |
PIN 2 | Functionality unclear! |
PIN 3 | Button data |
PIN 4 | GND |
PIN 5 | Display data |
PIN 6 | Clock |
PIN 7 | 5 VDC |
PIN 8 | Floating output |
PWM output from control system, same on both pins. Unclear functionality for these PINs still! Maybe some internal light supply?
50Hz, pk-pk=18v, mean 5V
Display shows 37.5C - How does that translates into the bitstream? The first 4 chunks is coded in BCD to 7 segment LCD (see reference) but only with 7 bits sinse the LSB always is (0).
3 = 1111001(0) = 0x79 (Chunk 1)
7 = 1110000(0) = 0x70 (Chunk 2)
5 = 1011011(0) = 0x5B (Chunk 3)
C = 1001110(0) = 0x4E (Chunk 4)
Chunk 1 - bit(0-6) | Chunk 2 - bit(7-13) | Chunk 3 - bit(14-20) | Chunk 4 - bit(21-27) | Chunk 5 - bit(28-34) | Chunk 6 - bit(35-38) |
---|---|---|---|---|---|
LCD segment 1 | LCD segment 2 | LCD Segment 3 | LCD segment 4 | 28 - Button down/up | 35 - Heater |
29 - ? | 36 - Pump 1 | ||||
30 - ? | 37 - Pump 2 | ||||
31 - Standard mode | 38 - Light | ||||
32 - ? | |||||
33 - ? | |||||
34 - ? |
Button | Decoding bit(0-2) |
---|---|
Mode | 0 0 1 |
Temp up | 1 0 0 |
Temp down | 1 0 1 |
Light | 0 1 1 |
Pump 1 | 1 1 0 |
Pump 2 | 0 1 0 |
Pump 3 | 1 1 1 |
Since the display and controler unit hardware design is unknown an OR-gate is used to prevent damage if simultaneous HIGH/LOW levels from display and Arduino.
Gerber files located here: PCB Balboa-GS510SZ