App-based “bike sharing” systems have grown unbelievably fast in Chinese cities. But what does bike sharing really look like? How does it use technology to create new options for urban transportation?
I’ve been messing around with Bluetooth Low Energy on a few projects lately. There’s some fun stuff out there, but like a lot of embedded stuff it can be a bit tricky in a non-Windows environment (I run Linux whenever I can.)
One module I’ve come across is the Laird Technologies BL-600 Series. The BL-600SA is a complete, FCC module certified, Bluetooth Low Energy systems-on-a-chip. It costs $13US in single quantity at Digikey.
Inside the metal can the BL-600SA is actually a Nordic nRF51822 Cortex M0 microcontroller with built in Bluetooth Low Energy, bundled with its supporting components and a chip antenna.
I bought this LG branded USB 2.0 Hub for $10 from PCDIY.
Seems to be an LG promotional item that PCDIY decided to resell. (I don’t mind, it works properly in Linux unlike most cheap hubs.)
However, the form factor is kinda big and the LG logo is pretty bright.