How to build your own digital assistant with a Raspberry Pi and Google Assistant. All you need is a speaker and a microphone and Google will do the rest!

[Eduardo Luis] figured out how to implement some of this type office magic using very inexpensive components. Specifically, he can press one button to scan a document and send it to an email address.

For added strength use a hot-glue gun to keep the wires on the contacts. Attach the positive battery terminal to the 3V3 GPIO pin and the GND of the battery terminal to the GND of your Raspberry Pi.

There are multiple ways to do this with the Raspberry Pi’s GPIO Python library, but we settled on the “add_event_detect” method, which can take a callback as an argument.

The Raspberry Pi has been very popular among hobbyists and educators ever since its launch in 2011. The Raspberry Pi is a credit-card-sized single-board computer with a Broadcom BCM 2835 SoC, 256MB to ...

I finally succumbed to their call when I realized the lidar serial interface was a perfect match to a Raspberry Pi’s since both work at 3V3 levels. This would eliminate the USB interface.