Based on the ATtiny1614 and inspired from the Adrianino, the HelloD1614 is a simple board that can be used to test the recent features of the new ATtiny microcontrollers. The board exposes the full pinout of the ATtiny1614, and offers UPDI as one of the way of programming the chip. Rearranged pinouts for I2C and the FTDI are also available.

Here's the board connected to the FTDI:

https://github.com/SpenceKonde/megaTinyCore

To be programmed by using the UPDI, the board can be connected as show below. Instead of the FTDI-USB in the picture, also an FTDI cable would work.

• HelloD1614 Eagle files in a zip: hellod1614.zip

• Traces PNG:

• Holes PNG:

• Cut PNG: