Wednesday 4 February 2015

Teeth, Blue

While waiting for some outstanding camera components I decided to push ahead on another front: communication. I'm intending to interface with the S1 via mobile phone, leveraging it's fast processor for image processing. After some searching I decided to go with the HC-05 Bluetooth tranceiver, a cheap and available break-out board.

At first the pinout looked to require six wires, however after some experimenting only three will be required: VCC, GND & TX. The main hurdle for the sensor will be throughput, with 8 lines of image data needing to be sent over the wire. There are projects that have pushed the MCU as far as 2Mbit/s, which is close to the rates I'll need to support stereo image sensors at high resolution.

The next step will be a minimal mobile application to display the transmitted data, a simple test pattern at first. Qt should come in handy here, allowing a single app that will serve as the hub for many sensors. Onward and upward!



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