fattoresaimon / i2cencodermini Goto Github PK

I've tried two devices, and bricked both. Presumably the project as is must disable the UPDI pin feature in order to use the pin as an interrupt out. Maybe the devices are now functioning as i2c encoders, but I can't check that right now.
If I'm correct, where does that occur in the code? I'd like to prevent it to verify my IDE and programmer is set up correctly.

I didn't think the UPDI could be locked out without setting a fuse, and I didn't think fuses were set by loading and running code in debug.

I assembled 4 pieces of I2CEncoderMini_V1.1 and uploaded the HEX file directly. I've got everything working except the INT pin.
I'm using the Basic_with_Callbacks sketch. I'm trying to read the configuration and it is:
interrupt config is 255
ID code is 57
version is 17
It seems to me that the INT pin never goes LOW regardless of "i2cEncoderMiniLib::IPUP_ENABLE" or IPUP_DISABLE.
Is there something else around the proper use of the INT?

Shouldn't there be a small resistor in series with the capacitor and the encoder contacts to prevent the cap short circuit to GND?

It's a real shame the pin spacing is not the same on the V2.1 encoder and the mini encoder.

Pin spacing is 19.6mm on the mini and 20.9mm on the v2.1 (estimated from the gerber files)

This makes them almost incompatible.

Regards
Hugh

How can we disable clock stretching. We cannot get the encoder to work with an LPC1768 MBED.

The datasheet link is 404

I bought several of the mini boards a few months ago but just now got to try them out. I am running the Change_Address program but can never find the encoder. I have tried three diffrent boards using a Tinsey 3.2, NodeMCU v2 ESP8266 and a ATmega328P. I have verified my setup each time using an MCP23017 wired for address 0x27, the MCP chip always shows up but never the mini. Any thoughts or suggestions?