Error Code - 2

hunaid_n

I'm trying to use a trill craft with an arduino to make a touch sensor using 3 channels on the trill craft (image attached). Have been trying to run the example script 'craft-print' but keep getting Error Code: 2. Any thoughts on how to fix this?

I believe all the connections are in the right place, have tried different arduino boards (uno and nano), and even switched the cables but nothing seems to work.

alt text

giuliomoro

Error 2 means that the device is not detected. It could be an issue with powering it, wiring, pull-up resistors.

What's the Arduino board in the picture? If it's supposed to have a pinout compatible with the Arduino Uno, then I think you are using the wrong pins. Check the pinout here. Also, you may need to add 4.7k pullup resistors from each of SCL and SDA to 5V.

The Trill-like board you have looks like an early protoype (does it say "2018 Rev B"? ) that was given away for free. What are the pin labels on it? can you send a close-up? I also believe it may have been flashed with the address set to 0x18 (i.e: 24). Once you fixed the wiring, try editing the code so that it specifies the address manually:

 int ret = trillSensor.setup(Trill::TRILL_CRAFT, 0x18);

and see if you have more luck.

Is the purple thread going through the screw holes conductive?In that case it is probably shorting some of the sensing pads to ground , which is undesirable as it may affect the behaviour of the device.