Since there are many uses for ultrasonic sensors (Robots, Liquid Level Sensor, Motion Sensor, Vehicle Parking/Backup, on and on....) I co...

Before we start lets first name off the different ways to interface things to your raspberry pi. I2c, SPI, UART, digital pins,  usb (which w...

If you're looking to crowdfund your Raspberry Pi project maybe you can learn what didn't go right for these projects.  Here ...