Arduino Leonardo - without Headers

Arduino Leonardo - without Headers
Item numberA000052
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The Arduino Leonardo (without Headers) is a microcontroller board based on the ATmega32u4 (datasheet). It has 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs), a 16 MHz crystal oscillator, a micro USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.

The Leonardo differs from all preceding boards in that the ATmega32u4 has built-in USB communication, eliminating the need for a secondary processor. This allows the Leonardo to appear to a connected computer as a mouse and keyboard, in addition to a virtual (CDC) serial / COM port.

Operating Voltage5V
Input Voltage (Recommended)7-12V
Input Voltage (limits)6-20V
Digital I/O Pins20
PWM Channels7
Analog Input Channels12
DC Current per I/O Pin40 mA
DC Current for 3.3V Pin50 mA
Flash Memory32 KB (ATmega32u4) of which 4 KB used by bootloader
SRAM2.5 KB (ATmega32u4)
EEPROM1 KB (ATmega32u4)
Clock Speed16 MHz
Lenght68.6 mm
Width53.3 mm
Weight20 g


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Q Spain SjoerdDo you also have these available with headers? View 1 answer   |   Answer this question


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