Light beacon for debugging autonomous vehicle

Debugging of project is as equal as building it. You need proper tools and means to see whats going on. If it is a field test, you need some sort of visual feedback. Gal Pavlin have built great looking RGB light beepers that are based on STM32F0 microcontroller. They even made a custom 3D printed cap to make it look finished. The signal light consists of three independent RGB strips controlled by 9 PWM signals generated by STM32F0 microcontroller. LED strips are switched with N-MOSFETs. A separate MOSFET is controlling beeper for audible signal. Microcontroller receives commands from host computer via USB interface which works as virtual serial port. The color depth is 8-bit. The other parameters set by host are color fade time, beep more. For more information refer … Continue reading

Adding third hand to guitar play

Playing a guitar is fun as it is. But if you are a bit more nerdy, then why not adding something weird to it to amaze friends. Youtuber Make It And Fake It have been tinkering with Arduino, servo and couple of chopsticks and put together a crude guitar attachment which can stroke strings with different patterns. The functionality is yet still limited as for different strokes it needs reprogramming with three control buttons. For more functionality additional coding might be needed. The fun demonstration at the end of video proves to be real fun from both – funny and practical side. With a bit of tuning one hand really can be free to play another instrument to make song even better. Servo motor seems to be too loud while … Continue reading

An Arduino based IC tester with smart touch

IT is always a good practice to test every electronic component before mounting to PCB. You never know weather it is faulty, or worse counterfeit. Logic IC’s aren’t exception. With this smart IC tester, all you need is to wack it in and confirm it is working as should. The other potential other of IC tester is detecting unknown ICs on the fly. The design of IC tester consist of several building block including Arduino Mega 2560, 2.4 inch TFT LCD. Custom IC tester shield PCB with ZIF socket. Arduino code is located at git repository where you might find updates and feature enhancements. Probably the most tedious task was to rpepare IC database which is saved as .txt file on SD card. Currently the list is very short and … Continue reading

Most exciting features of the iPhone X

With the iPhone X recently being released for pre-order (and reviewers), much to a wave of praise, many owners are clamouring to advertise the landmark phones best features; here we take a look at 7 of the best features. Display You can’t talk about the iPhone X without first talking about the thing that you spend 99.9% of the time interacting with – and that would be the Super Retina HD 5.8 inch 2436×1125 (458 ppi) display. Apple has more or less pushed the boat out and aligned themselves with the competition by redesigning the bezel. That, along with the Apple True Tone technology, HDR10 and Dolby Vision, the Apple iPhone X deals a mighty blow in the face of competitors. Continue reading

Ways to Increase Laptop’s Life Expectancy

On average, a laptop has a lifespan of 4 years. The laptop users have to replace their gadget after every few years. The device that we use daily becomes unresponsive because of many reasons. Sometimes, the laptops are suffered from damages over time. As a result, the laptop users are bound to get a new one. Changing a computer is a serious problem for many people. All those problems can be avoided if you learn to stay longer with your laptop. If you are out of the budget and don’t want to buy a new laptop, here are simple ways for you that will help you increase the lifespan of your laptop. Continue reading