Waveshare Sensors Pack Brand_Parallax It runs very cool due

It runs very cool due to its up to 90% efficiency allowing the whole unit (Raspberry Pi + NanoSound DAC + NanoSound Amp^2) to be powered by one single microUSB power supply (individually if you choose to)

and the blue wire to 3-5V DC (we tried both

The MAX-8 Family

3V/GND pins for communications allowing interfacing to the Raspberry Pi

875 times as many but that's within a margin of error)

Waveshare Sensors Pack Brand_Parallax It runs very cool dueThis bumper pack from Waveshare includes 13 different sensors from the excellent Waveshare range. With enough different sensors for a whole year of fun project making, it's an excellent gift idea (or just treat yourself!). The Waveshare Wiki page gives details and links for each sensor, ensuring you have everything you need to make a whole new set of fun projects. The sensors pack includes: Sensor Description Project Application MQ 5 Gas Sensor