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Category Archives: Arduino

Wifi controlled FPV rover

Posted on November 9, 2016 by R-B Leave a comment

First Person View (FPV), also known as video piloting, provides a more exciting driver’s viewpoint for controlling a RC rover by mounting a video camera. This FPV two-wheeled robotic rover is controlled over a WiFi network via any internet browser using an HTML-based control interface. It features an Arduino Uno board that controls the movement of the rover by driving two stepper motors. Arduino gets the WiFi capability with the help of an ESP-01 module (ESP8266 board). The communication between the Arduino and ESP8266 is through a serial interface. An Android smartphone is mounted at the front of the rover for live

One-button meeting call

Posted on November 8, 2016 by R-B Leave a comment

How fast and easily can you call for a video conference? This fancy arcade button can do that with a single press. The button is connected to a Mac-Mini and initiates a Zoom meeting automatically, when it is pressed. It uses the Digispark Attiny85 microcontroller board that emulates an USB keyboard that signals the MacOS about the button press. The idea is simple, we use a really cheap micro controller and a fancy button (from an arcade mashine) and simulate an USB keyboard. This simulated Keyboard doesn’t need any special software driver because all operating systems automatically have drivers included and can use it.

Dtto robot is the 2016 Hackaday Prize Winner

Posted on November 6, 2016 by R-B Leave a comment

Dtto, a modular self-reconfigurable robot, is the grand prize winner of the 2016 Hackday contest. Dtto’s design is focused on all-terrain search and rescue operations using bio-inspired locomotion mechanisms. The Dtto Modular Robot has been designed with adaptability in mind. Inspired by how fire antscolonies work, a number of modules (or small robots) find each other, connect mechanically and colaborate to act as one only robot, creating a collective inteligence. They can link together and bulid structures without any central comand. The advantatge of being all modules the same is that, if one of them breaks, it can easily get

Automatic garage door monitor and closer

Posted on November 5, 2016 by R-B Leave a comment

How many times you have trouble remembering if you have closed the garage door while you are away? Or, how many times you have discovered in the morning that your garage door was open all night? Well, if you are having this issue, you might consider building Adam Oakley’s automated garage door closer that shuts the door for you automatically when you forget. Powered by an Arduino Pro Micro board, it uses a ceiling-mounted HC-SR04 ultrasonic distance sensor to sense the status of the garage door. When the door is open, it slides up close to the ceiling, and thereby

Bluetooth enabled portable spectrometer

Posted on November 5, 2016 by R-B Leave a comment

Spectrometers are widely used in scientific studies to characterize the spectral signature of a material that represents how the matter interacts with an electromagnetic radiation at different wavelengths. The spectral data contains vital information like the chemical composition and crystal structure of the material, as well as the presence of any impurities or third element within it. A commercial spectrometer costs a huge amount of money. Akshat Wahi‘s WiSci is an open-source spectrometer tool intended to allow spectroscopy accessible to everyone. With Hamamatsu’s C12666MA mini-spectrometer at the front end, WiSc collects spectral signature from a target in wavelengths ranging from 340 to 780 nm. The hardware setup includes an Arduino

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