bskdany opened a new pull request, #16087: URL: https://github.com/apache/nuttx/pull/16087
## Summary This PR is from CuInSpace. This PR adds an experimental driver for the Nuvoton 24 bit NAU7802 ADC. The driver uses I2C and implements the UORB driver interface from NuttX. The PR also includes proper documentation for the NAU7802. ## Impact The NAU7802 can be used with NuttX. ## Testing Testing was done with an Adafruit NAU7802 board attached to a 100kg CZL601J loadcell and Raspberry Pi Pico W. The pico had GPIO 0 and 1 reserved for I2C0, it was also powering the NAU7802 directly through the 3.3V out pin. Each function and control signal was properly tested. The `uorb_listener` utility was used to receive data from the sensor properly. ``` nsh> uorb_listener Mointor objects num:1 object_name:sensor_force, object_instance:0 sensor_force(now:11480000):timestamp:11480000,force:13510.000000,event:0 sensor_force(now:11590000):timestamp:11590000,force:13533.000000,event:0 sensor_force(now:11700000):timestamp:11700000,force:13502.000000,event:0 sensor_force(now:11810000):timestamp:11810000,force:13495.000000,event:0 sensor_force(now:11920000):timestamp:11920000,force:13452.000000,event:0 sensor_force(now:12030000):timestamp:12030000,force:13493.000000,event:0 sensor_force(now:12140000):timestamp:12140000,force:13484.000000,event:0 sensor_force(now:12250000):timestamp:12250000,force:13505.000000,event:0 sensor_force(now:12360000):timestamp:12360000,force:13428.000000,event:0 sensor_force(now:12470000):timestamp:12470000,force:13417.000000,event:0 sensor_force(now:12580000):timestamp:12580000,force:13440.000000,event:0 sensor_force(now:12690000):timestamp:12690000,force:13455.000000,event:0 sensor_force(now:12800000):timestamp:12800000,force:13460.000000,event:0 ``` A calibration script is included in the documentation for manual sensor calibration to output the data in grams from a loadcell. ``` nsh> calibrate_script Zero point: 13245 Place weigth on the sensor Starting gain calibration Weight value: 36160 Force: 2636.409 Force: 2636.016 Force: 2635.848 Force: 2636.577 Force: 2633.828 Force: 2635.118 Force: 2637.195 Force: 2637.139 Force: 2636.297 Force: 2634.108 ``` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@nuttx.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
