Screenshots are often required while working with projects. There are many solutions available, like the inbuilt Snipping Tool (Windows).
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Tag: Robot
Measure Distance using Ultrasonic Sensor HC – SR04 | Pi4J | JAVA | Raspberry Pi
This is a simple tutorial showing how to interface HC – SR04 ultrasonic ranging module with Raspberry Pi to measure distance using JAVA. Ultrasonic ranging module HC – SR04 provides 2cm – 400cm non-contact measurement function, the ranging accuracy can reach to 3mm. The modules include ultrasonic transmitters, receiver and control circuit. The basic principle of work: (1) Using IO trigger for at least 10us high-level signal, (2) The Module automatically sends eight 40 kHz and detect whether there is a pulse signal back. (3) IF the signal back, through…
Read MoreCustom Character Generator for 16×2/Dot Matrix LCD
Around microcontrollers, 16×2 LCD is a great way of displaying information to users. They are the cheapest and easy to use. Moreover, there are tons of libraries available to use these across different microcontrollers. If you want to learn more about 16×2 displays interfacing, you can check out this post. In this post, we will discuss how to show custom characters in a 16×2 LCD and dot matrix displays also. To generate the array bytes for such character generation I have written a small JAVA program, which lets you draw…
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