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First parts

A project log for Screenbot

A little throw-together bot intended to be a mobile video chat platform.

sciSci 10/06/2014 at 21:580 Comments

I sold most of the screens I had that had a chance of being hooked up to external video. I kept a 10" widescreen one to myself. I'm going to use it portrait-style as a chat window.

I cut some 5mm thick black acrylic on the London Hackspace lasercutter, which was the perfect depth to recess the screen into. I managed to find some speakers in my parts box that were both loud and small enough to fit on an A4 size piece of acrylic with the screen. It means a camera will be on a seperate board, but I'll probably swap cameras around getting something working anyway.

The speakers are from what I think was an utterly trashed Jawbone Jambox I picked out of the hackspace junk bins last year. Annecdotal accounts say they're 4Watts each and I'm powering them with a cheapo PAM8403 amp board from ebay. No volume control.

The speakers are clamped in place and the clamp makes the recess at the bottom deep enough for the three-button screen menu controls (3-wire control as long as the buttons pull to ground).

Waiting on some grey-tint perspex to make a front cover and some black vinyl to frame the screen's active area better.

The screen will mount on a servo for tilt control, and that will go on the Tri-bot base. Was going to use a Raspberry Pi as the brain, but will have to see if I can get two-wat video working with it at all since Skypekit's been discontinued. Web-video or remote-desktop seem the most likely atm.

Worst case it becomes a cute independant robot who don't need no video chat.

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