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This item will be Ordered on Demand - Order before 20th. Delivery on 31st/1st.
The ATMega32U4 is Atmel’s low-power 8-bit AVR RISC-based microcontroller featuring 32KB self-programming flash program memory, 2.5KB SRAM, 1KB EEPROM, USB 2.0 full-speed/low speed device, 12-channel 10-bit A/D-converter, and JTAG interface for on-chip-debug.
This is the same controller that’s used on the Pro Micro and Fio v3.
AVR 8 Pin 20MHz 8K 4A/D - ATtiny85
AVR 14 Pin 20MHz 8K 12A/D - ATtiny84
Pro Micro - 5V/16MHz
Fio v3 - ATmega32U4