I'm getting close to having Nybble working properly, but I'm experiencing two problems. I have the Nybble kickstarter kit with the v02 board. I've also installed a Pi on Nybble, but haven't used it yet:
I have assembled Nybble, calibrated him, and uploaded the Nybble sketch. When I turn him on, the remote will accept a single command, but then stop. This video shows Nybble standing up when "Balance" (Fast Forward on the remote) is pressed. It seems the servos are whining, so I figured I must have some calibration issues.
So I figured I'd run WriteInstinct again, but now I can't upload sketches to Nybble. With the FTDI plugged in (images shown below),
I plug in the same USB data cable I'd used previously. The RX and TX lights flash briefly, but the power light on the FTDI stays on. Port shows /dev/cu.USBSerialA500CF99, as expected. I've tried setting the Board to both ATmega328P (5V, 20MHz) NyBoard V0_1 (as shown), as well as Arduino Pro or Pro Mini, both offer the same result. I've tried several sketches - WriteInstinct, testBuzzer, both produce the same result. I've taken a screenshot showing each sketch is up, the error output, as well as what shows in the serial monitor. After the upload fail I think the "Nybble" sketch that was uploaded previously (and successfully) starts running and the output seen in the serial monitor is from that sketch. If I try typing in a command like "ksit" into the serial monitor, it isn't accepted. I've switched batteries, restarted my Mac, downloaded the very latest Arduino IDE, but the results are the same.
I believe I've gone through everything listed in the checklist linked in the FAQ. Curiously, at one point while I typed this Nybble started gyrating in all sorts of ways without receiving any command from me. I turned him off. Any suggestions are most welcome. Thanks! John