I've ordered 1 from Adafruit. It will probably take about 1 week to arrive, since they can't ship until Tuesday and it has to go from New York to Oregon.
Type: Posts; User: PaulStoffregen
I've ordered 1 from Adafruit. It will probably take about 1 week to arrive, since they can't ship until Tuesday and it has to go from New York to Oregon.
Can you confirm whether the problem happens with only 1 of these boards, or if 2 or 3 are needed.
I will order 1, 2 or 3 from Adafruit for testing, depending on your answer.
Which version of Teensyduino are you using?
Version 1.48 (the latest) fixed a bug in the Wire library. If you're using 1.47 or older, please update to 1.48.
Looking at that library's code, I see the begin() function is supposed to print a few lines to the serial monitor.
// Useful debugging info
Serial.print("Product ID: 0x");
...