This means my mentor and I can’t add features, such as the new face, unless we update the code. While the original code (written by my mentor) seems to work just fine, we don’t actually know exactly which version is in there since it has no serial output and we lack documentation, but we suspect it dates back a couple of years.

I’m fairly new to Arduino and this is only my second project, but my much more experienced mentor hasn’t been able to find a solution either, and it’s been a few months now.Īnyway, the two to three Arduinos are connected via I2C, with the main one in the head as master and the others as slaves. I am working on adding a third Arduino, also in the head, to control newly created facial expressions and make the new LED mouth blink when it talks, but that is secondary right now until I fix the problem I’m about to describe. It also has speakers that relay the voice of another operator with a microphone, but that is almost entirely a separate system. The robot has two Arduino Unos, one inside its head which receives and interprets infrared signals from a TV remote held by its operator, and one in its base which translates those numeric signals into movement commands. I am a volunteer at a science and technology museum, trying to work on improving their mascot ‘robot’ by adding some new features and updating its code. The reason it took me so long is that I had to wait for feedback from the operators, as described below. I’ll repeat the background info from that post, and then get into why I’m posting again. I made a very similar post to this one two weeks ago, trying to fix this same problem, but the suggestions I got, while useful and worthwhile, didn’t seem to work.

Arduino wire library warning