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- Use standard RIOT style `ina2xx_params_t` on initialization as explained in
[1] instead of a custom API
- Provided a default configuration via `ina2xx_params_t` as required by [1] that
works fine for the INA219 breakout board and with an optimal resolution that
still covers the whole range of USB high-power devices (500 mA @ 5V) with a
comfortable safe margin.
- Changed initialization procedure to include a device reset and connectivity
test, as required by [1]
- The calibration value is now calculated by the driver
- This simplifies using the driver a lot
- The user can still choose a trade-off between range and resolution that
matches the application requirements, but now among predefined values
- This allows the driver to easily convert the raw data into meaningful
physical data, as the resolution of the raw data is known
- All measurements are provided as meaningful physical data as required by [1]
[1]: https://github.com/RIOT-OS/RIOT/wiki/Guide:-Writing-a-device-driver-in-RIOT
712 B
712 B
About
This is a manual test application for the INA219/INA220 current and power monitor driver.
Usage
This test application will initialize the sensor with the default parameters in @ref ina2xx_params.h
After initialization, the application will print a table of the devices measurement data. If the I2C interface is fast enough, one row corresponds to one measurement of the device. (The sensor indicates when a new measurement is available via flags, this flags are read until the measurement is done. The duration of one measurement depends on the sensor settings and is between 84µs and 68.1ms. Please note that blocking stdio might very well be the bottleneck causing the test to miss measurements.)