Arduino Leonardo (with Headers)
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Arduino Leonardo (with Headers), Get the ideal board for getting started with electronics with Jameco's stock of Arduino Uno products & accessories. Through fun & engaging hands-on projects, these boards are your entry to the unique world of Arduino. Choose from tons of options like the Arduino Uno SMD, the Arduino Uno Surface Mount, the Arduino Uno Proto Shield, ARLCD Arduino Uno + Touchscreen, the Arduino Uno R3 DIP, and much more. These microcontroller boards will deliver every time. Arduino Leonardo (with headers) The Arduino Leonardo 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. It also has other implications for the behavior of the board; these are detailed on the getting started page. We no longer carry the Leonardo without headers. NOTE: You will need Arduino software v1.0.2 or later to program the Leonardo. Specifications Microcontroller: ATmega32u4 Operating Voltage: 5V Input Voltage (recommended): 7-12V Input Voltage (limits): 6-20V Digital I/O Pins: 20 PWM Channels: 7 Analog Input Channels: 12 DC Current per I/O Pin: 40 mA DC Current for 3.3V Pin: 50 mA Flash Memory: 32 KB (ATmega32u4) of which 4 KB used by bootloader SRAM: 2.5 KB (ATmega32u4) EEPROM: 1 KB (ATmega32u4) Clock Speed: 16 MHz Schematic & Reference Design EAGLE files: arduino-leonardo-reference-design.zip Schematic: arduino-leonardo-schematic-rev3b.pdf