Do you know how many devices are on your local network? That is what we where wondering at our hackerspace HackBergen.
Yes, there are available programs and Apps to scan your network, but we can also scan with the Raspberry Pi (RPi) and show the result on a set of 7-segment displays.
These look cool, retro, are cheap and can be seen from a distance for you to have a general idea of how many devices are currently operating on your local network in these IoT times.
This build uses 3 modules of 7-segment common Anode LED displays that are controlled by an Atmega328. We use 3 because normal home LANs are C nets with a maximum of 256 devices and I had 3 of these nice 7-segment displays lying around. 🙂
Each Friday is PiDay here at Adafruit! Be sure to check out our posts, tutorials and new Raspberry Pi related products. Adafruit has the largest and best selection of Raspberry Pi accessories and all the code & tutorials to get you up and running in no time!
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.