Tiny, Small, Medium, and Large (supporting up to 256k+ Flash) Optimizers

: Features a rich set of libraries for TWI (I2C), Ethernet (ENC28J60), and various sensors/displays without the need for additional royalties. 💻 Compatibility & Requirements OS Support

The Professional edition includes libraries for:

After a successful build, use the built-in AVR Chip Programmer to transfer the code directly to the chip.

Even today, 2.05.0 (circa mid-2000s) enjoys a loyal following for: