-Balboa-GS523DZ-with-panel-VL801D-DeluxeSerie-MQTT
Balboa-GS523SZ с панелью VL801D (DeluxeSerie)
RJ45 pins
| PIN | 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 |
PIN 6 (Yellow - clock), PIN 5 (Blue - display data), PIN 3 (Pink - button data)
Conclusion
- The clock is pulsing 7 times for each chunck of display data, totaly 71 bits and 4 times for button data. A complete cycle 75 pulses.
- Totaly of 6 display data chunks in each cycle
- Each cycle is repeted every 10 ms
- One total cycle duration 3.54 ms
- Bit duration for display data is 23.75 microseconds for display data
- Bit duration for button data is 71.5 microseconds
-
Display Data
Display shows 29.5C - 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).
2 = 1101101(0) = (Chunk 1)
9 = 1110011(0) = (Chunk 2)
5 = 1011011(0) = (Chunk 3)
C = 1001110(0) = (Chunk 4)
| Chunk 4 - bit(0-7) | Chunk 3 - bit(7-14) | Chunk 2 - bit(14-21) | Chunk 4 - bit(21-28) | Chunk 5 - bit(29-71) |
|---|---|---|---|---|
| LCD segment 1 | LCD segment 2 | LCD Segment 3 | LCD segment 4 | 29 - Button down/up |
| 59 - Standard mode | ||||
PCB fabrication
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Gerber files located here: PCB Balboa-GS510SZ
References of great help!
- https://github.com/NickB1/OpenSpa/blob/master/documents/Balboa/Balboa_Display_Measurements.pdf
- https://www.olivierhill.ca/archives/72-The-Internet-of-Spas.html
- https://create.arduino.cc/projecthub/meljr/7-segment-led-displays-102-using-a-shift-register-6b6976