Features



4 digital I/O pins: D2-D5



4 analog Input pin: A0-A3



Vin input range: 5-8v



A power switch



Dimensions: 38 x 37 mm/ 1.5 x 1.45 inches



Mounting holes x4 (3mm diameter)

Pinouts

Note：



The red VCC pins beside the Digital pins (D2~D5) are connecting to Vin port. If you connect

the power over than 5.5, please don't connect 5V sensors and modules directly. Or they will be

damaged.



The red VCC pins beside the Analog pins (A0~A3) are connecting to Bluno 5V port directly.



External power switch

Caution



1. If you plan to use the serial port or I2C interface you will need to solder leads to the

solder pads on the back of the Beetle, as pictured: