100% Brand New & High Quality

• Power supply mode: USB power supply, power supply voltage 5V (+/-0.5V);
• Power function: power switch, power indicator;
• Voltage regulator circuit function, with 3.3V/500mA load;
• Overcurrent protection function (onboard self-recovery fuse);
• Audio function: a buzzer, a headphone jack;
• Two programmable colorful RGB lights;
• Onboard a photosensor;
• One way PH2.0-4Pin socket, I2C communication function;
• 20PIN IO port is all pulled out (P0-P20).