Features:<br> 1. The development board has 20 digital input and output interfaces, 7 PWM interfaces and 12 analog input interfaces.<br> 2. Using a separate USB-Serial converter chip compared to other versions, this product is innovative with a single-chip solution. Only one piece of Atmega32u4 was used to implement USB communication and control. This innovative design reduces costs.<br> 3. Atmega32u4's native support for USB features also allows the development board to be modeled as a mouse and keyboard, greatly improving the application.<br> 4. A new version for Arduno IDE 1.01 or higher is required to use for Arduno Leonardo.<br> 5. Easy to operate, anti-aging, prolong service life.<br> <br> Specification:<br> Condition: 100% New<br> Item Type: Development Board<br> Controller: ATmega32u4<br> Working Frequency: 16 MHz<br> Working Voltage: 5V<br> Input Voltage (Recommended): 7-12V<br> Digital IO Interface: 20<br> PWM Channel: 7<br> Analog Input: 12<br> 5V Digital / Analog Interface Maximum Allowable Current: 40 mA<br> 3.3V Digital / Analog Interface Maximum Allowable Current: 50 mA<br> Flash Memory: 32 KB (ATmega32u4) of which 4 KB used by bootloader<br> SRAM: 2.5 KB (ATmega32u4)<br> EEPROM: 1 KB (ATmega32u4)<br> Size: Approx. 68.6 x 53.3mm / 2.7 x 2.1in<br> <br> Package List:<br> 1 x Development Board<br> 1 x USB Cable