HM1X telemetry module
Connectors
4-pin Hirschmann CA3GD sensor connector
| pin number | function | notes |
|---|---|---|
| 1 | VCC out (5V) | max. 100mA for powering sensor |
| 2 | RS485 - A | alt: UART TX |
| 3 | RS485 - B | alt: UART RX |
| 4 / GND | GND |
7-pin Hirschmann CA6GS power connector for solar panel
| pin number | function | notes |
|---|---|---|
| 1 | BATT+ | 3.3-3.6V (e.g. LiFePO4 including charging voltage) |
| 2 | IO1 | charging status of battery (high - charging, low - not charging) (high, low against BATT+ pin) |
| 3 | IO2 | voltage on solar panel scaled to 0-3.6V max. |
| 4 | ||
| 5 | ||
| 6 | ||
| 7 | GND (BATT-) |