We are working away on designing and building Version 2 of MouseAir. Following is the latest block diagram.
The goals for the redesign are:
- Reduced Cost – eliminate unnecessary parts and reduce cost of current parts
- Single Power Supply – original design had two 5V supplies and one 12V supply
- Improved Reliability – Mouse loading was only about 50% effective. Cat detection was about 30% from the RFID and too short range for effective detection (requiring strategically placed treats to trigger – We will be publishing that video!).
There are four main things we are working on:
- New Mouse Loading Mechanism – The current drop mechanism is unreliable, large and requires two servo motors. We want a more visual reliable mechanism. Current thoughts are a 45 degree channel with a one servo motor loading mechanism. Below is a picture of the current mechanism. Check out the launch video.
- New Case – We are 3D printing a case for MouseAir. We are really tired of cutting foam and wood for cases. We just started this project. We will post pictures when we get there.
- Removal of the RFID
sensors – Even with a custom antenna, the range is too short. Another problem is that the chip implanted in the cat (cat seen below) requires a 125KHz RFID system but is one of three possibly standards in the US, which ca not be read by our 125KHz RFID system.
- MouseAir PC Board – We want to simplify the wiring between units. We also want the relays on the same board as the I2C bus.
See issue 5 of Raspberry Pi Geek Magazine for the full article on MouseAir Version 1.0.
Finally, below is a picture of the Cat (Panther) and one of his biggest fans.