While there is no standard system for coding canned foods, many companies use similar codes to track their products. Learning to read the most commonly used codes that refer to dates helps ensure your ...

Adding a camera to a project used to be a chore, but modern camera modules make it simple. But what if you want to read QR codes? [James Bowman] noticed a $7 module that claims to read QR codes so he ...

Picture a scenario where you’re at a store checkout point waiting for your turn and once there, the cashier offers you 20% off your purchase. The catch is that you’ll only get the deal if you sign up ...