A “nut core” (ATmega128, as used in the BTnode alikes) combined with wireless communication alternatives (nRF24L01 or ZigBee). The nRF24L01 can talk to the sputniks shown on the left.
The photo has notes on Flickr.
I wanted a cheap, potentially always-on and comfortably to use system for further BTnut experiments.
I already had it - a NSLU2 that runs Debian.
The Bluetooth module gets attached to the serial interface - and makes use of a connector that I originally wired for I2C experiments some years ago.
The photo has notes on Flickr.
The hardware for the vehicle is done. Remote control still to be programmed - so far it just follows a pre-programmed pattern (for an initial test).
An updated version of the “typing on the iPhone using a Bluetooth keyboard” video.
Both the keys and the display are in camera focus at the same time, iPhone is in Airplane Mode (so WLAN is intentionally off here) and it uses a simplified mechanism for key event injection (so there is no “VNC running on localhost” icon any longer).
The original posting with the old video was Apple wireless keyboard used with an iPhone
Bluetooth connectivity can flexibly be used for some interesting scenarios.
The photo has notes on Flickr.
“Debugging helpers” designed / added from the very beginning make everything easier.
The photo has notes on Flickr.
With the BTnode software running on both sides it is easy to setup flexible input devices that use Bluetooth for communication.
The photo has notes on Flickr.
A BTnode-alike sensor node can be made from individual modules. Just click on the picture - it has notes with additional infos at Flickr.
Will be used for prototyping the “Bluetooth enabled input device” (e.g. by translating from a PS/2 keyboard / mouse interface to Bluetooth) for a wearable computer.
