We’re never truly sure what to phone call these things. When we state “back up camera” it seems distinctly like a redundancy system for when the main camera stops working to work. however it is utilized for when you move in reverse in an automobile. [Jeremy Blythe] developed the distance sensing video system utilizing a Raspberry Pi board as the brain.
The versatility of Linux as well as the power of the RPi board ended up making it quite simple to get whatever working together. He’s utilizing a Microsoft Lifecam Cinema HD camera, which links to one of the USB ports on the board. just above that you can see the infrared distance sensor which is linked to the RPi’s GPIO header utilizing one of Adafruit’s Pi Cobbler breakout boards. This likewise facilitates the connection to the 176×220 color LCD screen.
In the video after the break you can see [Jeremy] testing out the system by moving his hand in front of the sensor. Python is utilized to grab the picture from the camera, draw a circle on it, as well as overlay the distance in centimeters at the bottom. when his hand is within 30cm the overlay turns red as well as the work stop is displayed. quite neat!