I'm researching a diy ebike project. Today I'm looking at speed sensors. Planning to use teensy 3.2 as microcontroller.
I think the cheap sensors (like the one at the link below) cannot tell direction of rotation. Is this true? I would like to be able to detect back peddling. How do other projects deal with this? Is there an alternative sensor? Easy mod to this sensor? Extra magnet? Or can direction be inferred somehow?
Thanks
Ron
http://www.ebay.co.uk/itm/33-5-Electric-Bike-Pedal-Booster-Assist-Sensor-Bicycle-E-Bike-Assistant-Part-UK-/162206281793?hash=item25c43f7041:g:Y1IAAOSwAuZX3Oad)
I think the cheap sensors (like the one at the link below) cannot tell direction of rotation. Is this true? I would like to be able to detect back peddling. How do other projects deal with this? Is there an alternative sensor? Easy mod to this sensor? Extra magnet? Or can direction be inferred somehow?
Thanks
Ron
http://www.ebay.co.uk/itm/33-5-Electric-Bike-Pedal-Booster-Assist-Sensor-Bicycle-E-Bike-Assistant-Part-UK-/162206281793?hash=item25c43f7041:g:Y1IAAOSwAuZX3Oad)