OverviewThis is a new SainSmart Leonardo R3 kit, which is easy for Arduino fans and starters to plug and play, containing one SainSmart Leonardo R3, one SainSmart IIC LCD2004. SainSmart Leonardo R3 Improved Version Board The SainSmart Leonardo is a microcontroller board based on the ATmega32u4 . 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. 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 SainSmart IIC/I2C/TWI Serial 2004 20x4 LCD Module IIC LCD2004-character LCD display module, a new high-quality 4 line 20 character LCD module not only set the contrast control knob selector switch also has a backlight and IIC communication interface. For Arduino beginners, not for the cumbersome and complex LCD driver circuit connection and a headache, the real significance of this LCD module will simplify the circuit, this module directly into the Arduino Sensor Shield V5.0 sensor expansion board IIC device interface can, GM 4P sensor connection cable, programmed through the Arduino controller, you can easily identify the slogan, sensor data records Interface: I2C I2C Address: 0x3F or 0x27 Pin Definition : GND,VCC,SDA,SCL Back lit (Blue with White char color) Supply voltage: 5V Pcb Size : 60mmX99mm Contrast Adjust : Potentiometer Backlight Adjust : Jumper Package List: 1. 1x SainSmart Leonardo R3 board 2. 1X SainSmart IIC/I2C/TWI 2004 Serial LCD Module 3. 1X USB cable
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