| Model No. | PinCount | Protocol | Model Name | Date | Country | Colour | Comments |
|---|---|---|---|---|---|---|---|
| 54075 | 10 | Custom one wire bi-directional serial | Premium Series | ~2006 | UK | Dark Grey | Oval display |
| 54075 | 3 | Premium Series | ~2012 | UK | Light Blue | Semi-circle display | |
| 54154 | 4 | Paris | ~2018 | UK | Dark blue/grey | Oval display | |
| 54129 | 4 | Palm Springs | ~2018 | France | |||
| 54123 | 4 | Miami | ~2018 | Germany | Grey | Round display | |
| 54156 | 4 | UK | |||||
| 54112 | 4 | ~2019 | Sweden | ||||
| 54173 | 4 | ? | Maldives HydrojetPro | 2020 | Germany | Grey | 2 WaterPump |
| 54112 | 6 | SPI | Vegas | ~2020 | UK | Grey | Round display |
| 54123 | 6 | UK | |||||
| 54314 | 6 | Hungary | |||||
| 54174 | 6 | Honolulu | ~2020 | Germany | Grey | Round display |
| pin | label | function |
|---|---|---|
| 1 | GND | Ground |
| 2 | Data | Bi-directional Data |
| 3 | 5v | 5v Power |
| pin | label | function |
|---|---|---|
| 1 | 5v | 5v Power |
| 2 | Data? | Data? |
| 3 | Data? | Data? |
| 4 | GND | Ground |
| pin | label | function |
|---|---|---|
| 1 | VCC | 5v Power |
| 2 | GND | Ground |
| 3 | ? | Data? |
| 4 | ? | Data? |
| 5 | ? | Data? |
| 6 | ? | 0v? |
| pin | label | function |
|---|---|---|
| 1 | WPUM | Water Pump Enable - Active Low |
| 2 | APUM | Air Pump Enable - Active Low |
| 3 | MT | Water Heater Enable -Active Low |
| 4 | LT1 | ? |
| 5 | LT2 | ? |
| 6 | ETES | Watchdog signal from display - 12ms HIGH, 6ms LOW square wave |
| 7 | 5v | 5v Power |
| 8 | GND | Ground |
| 9 | LNTC | ? |
| 10 | MNTC | ? |