Alexa Baked in a Pi

You can put Alexa in a Raspberry Pi, and that is pretty cool.

Alexa is Amazon's intelligent agent, like Siri for your living room. Standing nearby, you speak to it with a question or a command, and it responds verbally.

Normally Alexa lives inside a $180 device called an Amazon Echo, or the new $50 Echo Dot. But Emily Withrow at Northwestern University's KnightLab told me it was possible to put the Alexa code inside a cheap Raspberry Pi hobby computer. And I happened to have an old Pi lying around.

So I gave it a whirl!

Make Every Week: Bluetooth Device Sniffer

This week became “Tinker Every Week” more than “Make Every Week,” as I tried to make a new device-sniffing device.

Previously, I managed to detect wifi signals around me, and I wanted to do the same for Bluetooth devices, including gadgets using new “Bluetooth Low Energy,” or BLE, signals. These include iBeacons and other tracking systems being deployed more and more around us.

I got myself a Bluefruit LE Sniffer from Adafruit ...

... and rigged it up to my Raspberry Pi.