So here is a really, really cool project: eWheel Velo Bling-Bling:
‘Velo’ is the local Swiss term for ‘bicycle’, and no, this is not my project ;-). It is the one of Peter Schmid. Peter wanted to say ‘thank you’ for some of my blog pages. And I want to say that Peter did an awesome project!
The concept behind VeloBlingBling is POV (Persistence of Vision): a series of LED is rotating and moving fast, controlled by a microcontroller. If the LEDs are turned on and off in a fast and synchronized way, it creates the vision of a steady or moving image:
Peter created the first proof of concept with a Freescale FRDM-KL25Z board and Arduino Prototype-Shield:
The first prototype has been built with a Freescale KL25Z128VLK4 device and 16 LEDs:
And here the second prototype, mounted on a bicycle, with a Freescale MK22DX256VLF and 32 LEDs (16 on the front and 16 on the backside of the PCB):
- Built-in bicycle-meter (distance, speed) including barometric pressure measurement (altitude), temperature, time, stop watch, …
- 32 LED’s (16 each on front/back side)
- Configurable with Bluetooth Low Energy (BLE, Bluetooth 4.0) (e.g. with Android 4.4+)
- USB connectivity
- Hardware includes charger for LiPo (700 mAh) using micro-USB connector
- Start/Stop button
- Up to 50 loadable images
For all the other details, check out his website (in German): http://veloblingbling.ch
Peter is still undecided if he should make it a commercial product or not. Or what about making it Open Source and/or providing a kit? What do you think?
Happy Bling-Bling-ing 🙂