Adafruit has today announced that the Adafruit Metro Mini 328 5V 16MHz has now been updated, and provides a small development board that can be programmed using the the Arduino IDE by selecting ...

The Adafruit Metro Mini 328 takes the form of a breadboard-friendly development board that can be programmed using the Arduino IDE. ... we use a Pro Trinket 3V or 5V, but if you want to have USB ...

After analyzing the communication between the two chips, [Alejandro] pulled the S3P70F4 off the board and wired an Arduino Pro Mini 328 in its place. The Arduino was quite a bit larger than the ...