RoadQuality GPSTracker

With the Senorboard you track your bike or road bike route and save the road quality, how good it is for road bike rides. Plus detection of a fall.The Sony Spresense board stores GPS data on an SD card along with vibration data to assess the quality of the track and in the event of a fall, an optional beeper can be activated to alert people. With the battery board, the power supply is ensured.The LEDs on the Spresense carrier board indicate the status.

Yellow Arrow: Led0: SD card present and OK. Led1: GPS signal stable and OK.

Red Arrow: Board Power State (On/OfBlue Arrrow: MPU 6050 State (On/Off)

Here you can see the Sprense board with the carrier board and the self plumbed addon board with the MPU 6050 accelerometer.

Breaktrough for the GPS Antenna

The Components outside of the case.

Here in the case with the battery board

On my every day bike for first test.

Detail view

The data on the SD card have the format:

timestamp,latitude,longitude,altitude,acc_x,acc_y,acc_z,gyro_x,gyro_y,gyro_z,gyro_sum_value,gyro_max_value

Real data look like this:

2022,7,15,12:56:43,Latitude: 52.516160 ,Longitude: 7.344820,Altitude: 25.833642 ,1.55623,-0.421379,7.70933,-0.222763,0.499884,-0.00146554,0.275655,0.50801

The max_value (from gyro)with the max mpu6050 data looks like this in action:

using visu_trac.py from the github repo project, the data is displayed on a map.

This is a picture of example track1.txt from the repo, from a test drive