ATtiny85 is the tiniest MCU I have ever had hands-on. Due to its small size but packed features, it has been a go-to MCU for me for many *tiny* projects where an ATMEGA128 or a 328 will be overkill.

• ATtiny85 is an 8 pin IC
• It has its own clock in it and hence, pretty much self-sufficient for most of the projects
• The size it takes is pretty much equal to four through-hole resistors
• The IC and the 8 pin makes it easy to solder some basic LEDs and sensors even without any solders.

Arduino IDE can be used to program ATtiny85.

Please follow

https://wokwi.com/arduino/projects/283022189068812...

for an interesting example as well 🙂

The options to program ATtiny85 is possible and you can use your favourite Arduino Sketch for the same.