The AZ-ProMicro-Board is similar to the AZ-ProMini-Board, but has a Atmega32U4 on board. The USB transceiver in 32U4 enables us to add USB connectivity on the board and to do without the bulky external USB interface. features The ATMEGA32U4 5V 16MHz Development Board contains a PTC fuse and a diode to protect the circuit circuit circuit. The AZ-ProMicro-Board Development Board is durable, robust and stable. There is also a voltage controller on board so that it can accept up to 12VDC. Technical details: Microcontroller: Atmega32u4 Operating voltage: 5 V Recommended input voltage: 5 - 12 V Digital inputs and outputs PIN 12 (including 5 PWM outputs) Analog inputs: 9 Electricity strength per I/O-PIN 40 mA Flash memory: 32 KB, of which 4 KB are occupied by the boot loader. SRAM: 2.5 kb EEPROM: 1 KB Back rate: 16 MHz. Upgrades This last revision corrects the layout error from the last version of the board, so PIN 14 is correctly labeled Quick start guide We offer an extensive e-book library, regular blog entries with exciting projects, as well as an active customer community. https://elecena.pl/product/21589535/az-promicro-board-atmega32u4-5v-16mhz-development-board-microcontroller-module-with-bootloader-ide-development-board-with-2-row 2022-09-05 https://elecena.pl/product/21589535/az-promicro-board-atmega32u4-5v-16mhz-development-board-microcontroller-module-with-bootloader-ide-development-board-with-2-row 2022-09-27 https://elecena.pl/product/21589535/az-promicro-board-atmega32u4-5v-16mhz-development-board-microcontroller-module-with-bootloader-ide-development-board-with-2-row 2022-10-24 https://elecena.pl/product/21589535/az-promicro-board-atmega32u4-5v-16mhz-development-board-microcontroller-module-with-bootloader-ide-development-board-with-2-row 2022-10-25 https://elecena.pl/product/21589535/az-promicro-board-atmega32u4-5v-16mhz-development-board-microcontroller-module-with-bootloader-ide-development-board-with-2-row 2022-11-24 https://elecena.pl/product/21589535/az-promicro-board-atmega32u4-5v-16mhz-development-board-microcontroller-module-with-bootloader-ide-development-board-with-2-row 2022-12-10 https://elecena.pl/product/21589535/az-promicro-board-atmega32u4-5v-16mhz-development-board-microcontroller-module-with-bootloader-ide-development-board-with-2-row 2023-09-26 https://elecena.pl/product/21589535/az-promicro-board-atmega32u4-5v-16mhz-development-board-microcontroller-module-with-bootloader-ide-development-board-with-2-row 2023-10-20 https://elecena.pl/product/21589535/az-promicro-board-atmega32u4-5v-16mhz-development-board-microcontroller-module-with-bootloader-ide-development-board-with-2-row 2023-10-21 https://elecena.pl/product/21589535/az-promicro-board-atmega32u4-5v-16mhz-development-board-microcontroller-module-with-bootloader-ide-development-board-with-2-row 2025-03-10 https://elecena.pl/product/21589535/az-promicro-board-atmega32u4-5v-16mhz-development-board-microcontroller-module-with-bootloader-ide-development-board-with-2-row 2025-03-12 https://elecena.pl/product/21589535/az-promicro-board-atmega32u4-5v-16mhz-development-board-microcontroller-module-with-bootloader-ide-development-board-with-2-row 2025-04-01