jamesjmtaylor / esp32-ftms-server Goto Github PK

Dear Sir

very thx your post https://jjmtaylor.com/post/fitness-machine-service-ftms/

can help me about FTMS at android

i try decode data

1. i found this project https://github.com/sputnikdev/bluetooth-gatt-parser . the basic BLE data info it work --like Service -- device_information

2. but i lost fitness_machine service xml file !! so i found it & relation Characteristics xml !! at

https://www.bluetooth.com/wp-content/uploads/Sitecore-Media-Library/Gatt/Xml/Services/org.bluetooth.service.fitness_machine.xml

https://www.btstage.net/wp-content/uploads/Sitecore-Media-Library/Gatt/Xml/Characteristics/org.bluetooth.characteristic.fitness_machine_control_point.xml

3. when i think it is ok !! but the app will crash !!!??

4. i look the xml https://www.btstage.net/wp-content/uploads/Sitecore-Media-Library/Gatt/Xml/Characteristics/org.bluetooth.characteristic.fitness_machine_control_point.xml

the value is empty !!!!!!

5. now i want write some value at fitness_machine_control_point

how set value ? and get right Response Codes ?

THX

Cadence measures how fast the crankshaft rotates. RPM measures how fast the road wheel rotates.

Zwift (widows10) does not show up in the list of smart trainers on the device screen.
It does show up in the list of power meters and cadence sensors.

hi @jamesjmtaylor

I'm trying to use my schwinn ic7 bike magnet sensor - which fires once the wheel turns one round - to send ble-ftms data to a fitness app like zwift or rgt. I think your code can be helpful for my project, but I'm wondering why you declared an analog and a digital input pin. My plan was to connect sensor gnd to esp32 gnd and sensor signal to an input pin but unsure which to choose and why you've declared both.

I'm not familar with c++ / arduino programming but I think I can handle that if I understand your code a little better... I think I also have to recode the functions that calculate the kmh from rpm etc. but I think this shouldn't be too hard.

hope to get some explanation on that ;) thanks for sharing the code on github!

cheers
Dan