FrSky Variometer sensor instruction manual
The FrSky Variometer Sensor is designed to work in conjunction with a telemetry transmitter or receiver to indicate the altitude and altitude rate of an item. It calculates altitude based on atmospheric pressure changes and can output the Altitude Rate via its DA port using a specific voltage formula.
A key feature of this sensor is its ability to act as a bridge between non-S.Port FrSky telemetry systems and S.Port systems, facilitating easier setup for 2nd generation FrSky devices. The manual covers installation steps, including connections to receivers like the D8R-II Plus or D4R-II, and integration with Sensor Hubs. This manual is written in Chinese.
| Measures | -700 ~ 10000m with 0.1m (high precision version) or 1m (normal version) resolution |
|---|---|
| Operational Voltage | DC 4-10 V |
| Operational Current | 30 mA |
| Dimensions | 31.1 x 18.3 x6 mm (L x W x H) |
| Weight | 3.1g |
The sensor calculates altitude from atmospheric pressure, estimating it as pressure gets lower at higher altitudes.
Altitude Rate speed is calculated by taking (Output DA Voltage – 1.65) and dividing by 1.65, then dividing that result by 10.24.
No, the FrSky V8 series and D series receivers do not support Smart Port, which is required for this sensor's bridge functionality.