Here’s a great, relatively simple project to make a proximity alert using a Raspberry Pi and ultrasonic sensor. As the photo indicates, with this product you will nevet again need to fear being stalked by a stuffed bunny. Here’s more from Adrienne Braganza Tacke via hackster.io:
Proximity alerts can be very useful, whether you’re backing into a parking spot (and don’t have a rearview camera), want to warn others that you’re in a blind corner, or want to avoid getting too close to things. I wanted to see if I could build one myself using some pretty standard hardware components and a Raspberry Pi!
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Python for Microcontrollers – Adafruit Daily — Python on Microcontrollers Newsletter: A New Arduino MicroPython Package Manager, How-Tos and Much More! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi
EYE on NPI – Adafruit Daily — EYE on NPI Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey
