Pcf8583 params not showing up in QGC

roman-dvorak · December 20, 2020, 12:50pm

Hi @RayanR, thanks for your question,

Driver was tested with our TFRPM01 sensor board. With what hardware/sensor are you testing it?

The latest stable version of PX4 should contain that driver. The driver is not automatically started. here we are working on updating the sensor documentation. (we will create a PR into the official documentation on docs.px4 in a few days). Our working version is here:

github.com

ThunderFly-aerospace/PX4-user_guide/blob/tf/tfrpm_doc_update/en/sensor/thunderfly_tachometer.md#starting-driver

# ThunderFly TFRPM01 Revolution Counter

The [TFRPM01](https://github.com/ThunderFly-aerospace/TFRPM01) tachometer is a small, and low system demanding revolution-counter.

The board itself does not include the actual sensor, but can be used with a number of different sensors/probe types for revolution counting.
It has an I²C connector for connecting to PX4, and is connected to the actual sensor via a 3-pin connector.
It also has an LED that offers basic diagnostic information.

![TFRPM01A](../../assets/hardware/sensors/tfrpm/tfrpm01_electronics.jpg)

:::note
The TFRPM01 sensor is open-source hardware commercially available from [ThunderFly s.r.o.](https://www.thunderfly.cz/) (manufacturing data is [available on GitHub](https://github.com/ThunderFly-aerospace/TFRPM01)).
It is based on the [PCF8583 counter](https://www.nxp.com/docs/en/data-sheet/PCF8583.pdf).
:::

## Hardware Setup

The board is equipped with a (two troughpass) I²C connectors for connecting to PX4 and has a 3-pin connector that can be used to connect to various sensors:
- TFRPM01 may be connected to any I²C port.
- TFRPM01 has 3pin pin-header connector (with pull-up equipped input) that can be connected to different probe types.

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In the current airframes, the driver does not start automatically. This is mainly due to some missing features in the driver.

So, please, try:

start driver - How it starts is described in the sent document.
restart QGC (to reload parameters) and autopilot
set right parameter value.

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Pcf8583 params not showing up in QGC

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