Free wheel sensor: Unterschied zwischen den Versionen
Aus www.wiki.ardumower.de
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(→Required components) |
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=Required components= | =Required components= | ||
* Arduino Nano (placed into printed 3D part) and powered (VIN pin) via Ardumower PCB 9V output pin | * Arduino Nano (placed into printed 3D part) and powered (VIN pin) via Ardumower PCB 9V output pin | ||
| − | * HMC5883 compass sensor (placed into printed 3D part) | + | * [https://www.marotronics.de/GY-87-10DOF-MPU6050-BMP180-HMC5883L-Sensor-Arduino-Raspberry-Pi HMC5883 compass sensor (placed into printed 3D part)] |
* 4 ball magnets (10mm diameter) | * 4 ball magnets (10mm diameter) | ||
* printed 3D parts | * printed 3D parts | ||
Version vom 10. Mai 2020, 20:06 Uhr
Inhaltsverzeichnis
Idea
Add a rotation sensor to the free wheel to detect 'motion/no motion over ground' of the mower and thereby detecting obstacles.
The sensor is based on a compass module (which internally measures magnetic field changes via hall sensors) and rotating magnets.
Photos
Videos
Principle test https://www.youtube.com/watch?v=SGfPwGnzHT4
Outdoor test https://www.youtube.com/watch?v=UbwwP1jQigM
Required components
- Arduino Nano (placed into printed 3D part) and powered (VIN pin) via Ardumower PCB 9V output pin
- HMC5883 compass sensor (placed into printed 3D part)
- 4 ball magnets (10mm diameter)
- printed 3D parts
Download
Note: the sensor simulates an Ardumower bumper (and will be connected to the PCB bumper pin): when no motion is detected, a bumper press is simulated. Ardumower only evaluates the bumper when in driving state.
Forum
https://www.ardumower.de/index.php/de/forum/sensoren/1603-sensor-fuer-das-stuetzrad-free-wheel#14955
