This little girl, Maggie, was thrilled to meet R2D2. Most little kids her age (3 or so) have some trepidation, but she kept pulling her mother back again and again. And when I gave her one of my sound remotes, she was completely thrilled.
My sound system was glitchy on this outing. The Think Geek circuit board works, but it's obviously really cheaply built and it tends to go on and off without provocation. And it's much too soft for this big venue. The hall here is the same one that the R2 Builders will be in for the Maker Faire in a couple of weeks. And the sound of R2 just gets swallowed up. I tried running the signal through my little 15 watt amplifier again, but it's very noisy and makes the circuit board shut down for some mysterious reason. So even though the Think Geek system has been working fairly well, and it was pretty easy to install, I'm thinking about upgrading to the more expensive CF III sound unit. Those are more weight, and some more money. But Chris has written some good code for his that gives him a lot of control and versatility with his remotes. I've got that issue and some other electrical stuff to maybe work on before Maker Faire. I need to update here soon about my radio transition too and share the details. The short story is that the Futaba 6 channel is working out better than the Vex for several reasons, but a few glitches persist. Details soon.