About Micro USB UNO R3 development board:
- It is 100% compatible with Arduino UNO R3 program, expansion shields, IDE.
- You can burn the program with your mobile phone’s micro USB cable.
- It use the micro USB socket which it is very short, so it is compatible with more expansion boards.
- On-board test indicator LED, and the beginners can program to control it.
- USB interface driver chip: CH340G
- Microcontroller: Atmel ATmega328P
- Operating voltage: 5V.
- IO logic voltage: 5V
- Operating current: 500mA
- Digital I/O Pins: 14 (of which 6 provide PWM output)
- Flash Memory: 32 KB of which 2 KB used by bootloader
- SRAM: 2KB
- EEPROM: 1KB
- Clock Speed: 16 MHz

About 2.4inch TFT LCD Shield:
- Arduino UNO R3 and its compatible board can use it directly to display characters and graphics;
- Arduino library: Adafruit_TFTLCD and Adafruit_GFX;
- Resolution: 240X320;
- Display size: 2.8 inch;
- Operating voltage: 5V;
- Logic level: 5V / 3.3V;
- On-board 3.3V / 300mA regulator circuit;
- Operating current: the maximum is 150mA without TF card;
- Use the A0 ~ A4 pins, D2 ~ D13 pins. If you do not use TF card, you can use the D10 ~ D13;
- Onboard Micro SD slot, support 2GB Micro SD / TF Card;