This converter uses AVR's internal pull-up, but it seems to be too weak, in particular when you want to use a long or coiled cable.
The external pull-up resistor(1K-10K Ohm) on Data is strongly recommended.
This converter uses AVR's internal pull-up, but it seems to be too weak, in particular when you want to use a long or coiled cable.
The external pull-up resistor(1K-10K Ohm) on Data is strongly recommended.