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The Arduino Leonardo is a low cost Arduino Board with the ATmega32U4 and enhanced capability. It has identical dimensions and headers like the Arduino Uno but a simpler circuit.
The ATmega32U4 has a USB core built-in which removes the need for an external USB-TTL converter chip. Also this allows the Leonardo to emulate any USB HID devices like mice, keyboards, MIDI, serial port and more.
The Leonardo comes with 3.3Kbytes SRAM while the Uno only features 2Kbytes.
Note: This Version comes without Headers and without power supply connector but with USB mini connector mounted, if you prefer the version with Headers and power supply connector (barrel jack) see the recommended products below.
Features ATmega32U4:
- Flash (Kbytes): 32 Kbytes
- Pin Count: 44
- Max. Operating Frequency: 16 MHz
- CPU: 8-bit AVR
- Max I/O Pins: 26
- Ext Interrupts: 13
- USB Transceiver: 1
- SPI: 2
- TWI (I2C): 1
- UART: 1
- ADC channels: 12
- PWM Channels: 8
- SRAM (Kbytes): 3.3
- EEPROM (Bytes): 1024
- I/O Supply Class: 2.7 to 5.5V
- Operating Voltage (Vcc): 2.7 to 5.5V
Documents:
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