There's a #bike in the basement that has been there since I moved in 3 years ago. Never used since.

The battery-powered bike computer is still displaying the time.

After 3 years! On a single charge of a button #battery !

This is the level of longevity I want jazda.org to achieve.

#cyclocomputer #electronics #embedded

Crazy idea: instead of a reed switch or an inertial sensor, use an encoder and a photodiode for wheel speed measurements.

I think this is what the weird Bosch crank attachments sold online are.

#cycling #bike #cyclocomputer

Thanks @spaetz for writing up your first experience with the #jazda devkit. I'm going to use it as onboarding in the future.

https://sspaeth.de/2022/05/jazda/

#cyclocomputer

#jazda the #bike computer got a new, pretty font!

See how it thinks we're going 14 km/h? That's because it glitched (don't worry, I found the bug).

Two lessons:
- using ray tracing techniques (sdf) for drawing works on microcontrollers
- but barely fast enough :(

https://framagit.org/jazda/core/-/blob/master/ray-graphics/src/digits.rs

#floss #cycling #opensource #cyclocomputer

Are you dreaming about a #bike computer that shows where on the trail you are?

I stopped dreaming.

Because I made one!

Trail display is a demo for #Jazda I tested today while making code easier for newcomers.

https://jazda.org

The triangle on the display is about 10km around a pretty mountain lake surrounded by quaint little towns.

#cycling #cyclocomputer

I'm building a simulator for #jazda to test code before flashing. Here, I'm feeding it an old #GPS track, and testing a real-time situational map. Next I'll move it to the actual #bike computer.

#cycling #cyclocomputer #floss

First longer ride with #jazda. Impressions:
- I need to show battery level. I don't know if it was fully charged
- it survived the entire ride
- it shut off after I got back, after almost 5 hours with GPS on
- when the wind is blowing, I'm going way slower than I thought :S

#bike #cycling #floss #cyclocomputer

Still wondering what my secret project is?

#Jazda

An #opensource bike computer.

After weeks of working behind the scenes, today the first functional prototype was tested on the road. Hello world!

Check out https://jazda.org if you want a prototype too.

#foss #floss #fahrrad #cycling #cyclocomputer

Hot take: a #bike computer can't beat a #smartphone mounted on the handlebars.

Change my mind.

#cycling #fahrrad #cyclocomputer

#fedibikes can anyone recommend a decent Bluetooth speed sensor?

#cycling #cyclocomputer

#Bicycle gadget month begins!

Q1: What gadgets do you use while #cycling? If nothing, why not?

You can select more than one answer.

#iot #smartwatch #cyclocomputer