We recently made a digital diagram of the White Ink Circulation system. If you have purchased our eBook before, please contact us to receive the diagram. The diagram makes it much easier to understand how the wires should be connected. It shows exactly how everything should be connected, and is very easy to understand.
Arduino is more powerful than you think! Today we will use the Ultrasonic Distance Sensor called HC-SR04 and test it to see how accurate it is. First of all we will build a very simple setup and add a red LED and program it to flash red when the distance has reached. Ultrasonic Distance Sensor … Read more