Hi,
I want to use the Dashboard to display Battery Voltage and aktual Current of an EBike.
In the Bluetooth manager there is a Speed & Cadence Sensor defined.
So my Question is how to fake a Speed & Cadence Sensor using an Atmel ATTiny + a Bluetooth4 Serial Module.
Does anyone know the protokoll such a sensor is using (probably serial??) and the sequences that have to be provided?
Hello Christian,
I'm quite worried that this question is too complicated for most of human being here, at least for me :).
Bluetooth 4 communication is based on system of "Services" that offer some "Characterictics" ( https://developer.bluetooth.org/gatt/characteristics/Pages/CharacteristicsHome.aspx ). As a developer, I'm able to iterate over all services and it's characteristics and read a data from there. So question here is, if your combination of eBike and some Atmel + Module tools is able to broadcast some data with standard some characteristics, I may then (in Locus) read and display?
Just please keep in mind, I'm not a BT expert, it's just tiny knowledge I've learned during developing.
Hi Menion,
I managed to emulate a Zephyr HRM-Belt by an ATTiny45/HC-06 and display the Cell-Voltage, instead of HR.
Not "That" big deal, the Zephyr uses plain serial as protocol.
So a heartrate of 39 is a cellvoltage of 3,9V :-)
(http://www.pedelecforum.de/forum/index.php?attachments/screenshot_2016-11-27-18-52-43-png.118286/)
(http://www.pedelecforum.de/forum/index.php?attachments/20161127_182640-jpg.118287/)
(http://www.pedelecforum.de/forum/index.php?attachments/20161127_182629-jpg.118288/)