Vout: This is a voltage OUTPUT pin, it will be connected to either the USB power or the battery input, whichever has the higher voltage.Half of the pads on the Gemma are related to power in and out: 3Vo, Vout and GND. (This is true whether the board is powered via USB or a battery.) With the switch in the 'OFF' position, the microcontroller doesn't receive power. With the switch in the ON position, the microcontroller receives power and the board runs. The board can be turned on and off with the on-board switch. Either power source is regulated down to the operating voltage (3.3V) by the on-board MIC5225. The Arduino Gemma can be powered via the micro USB connection or with a 3.7V Li-Ion battery (connected to the JST connector on the board). On the Product itself through our Customer SupportĪrduino Gemma is open-source hardware! You can build your own board using the following files:.

In the Getting Started section, you can find all the information you need to configure your board, use the Arduino Software (IDE), and start to tinker with coding and electronics. You can find your board warranty information here.

It contains everything needed to support the microcontroller simply connect it to a computer with a USB cable or power it with a battery to get started.

It has 3 digital input/output pins (of which 2 can be used as PWM outputs and 1 as analog input), an 8 MHz resonator, a micro USB connection, a JST connector for a 3.7V battery, and a reset button. The Arduino Gemma is a microcontroller board made by Adafruit based on the ATtiny85.

Tiny wire library