This bike blinks brightly to the beat!

Natasha (AKA TechnoChic) is a member of a bicycle club that goes for rides at night during the summer, and while off-the-shelf lights are fine, she wanted something a bit more interesting. To accomplish this, while learning more about the technologies involved, she decided to equip her bike with an array of addressable LEDs.

The bike frame’s NeoPixels run on an Arduino Nano 33 IoT, which is connected to a boombox via a 3.5mm jack that enables the LEDs to react to the music. Two other Nano 33 IoT boards are used to drive the lights on each of the wheels, with the eventual goal of linking them wirelessly for central control. The system is powered by a 10,000mAh battery pack along with a pair of 2000mAh LiPos for the wheels to keep things glowing for several hours.

Read more…

Jacek Fedorynski Creates a Mouse Hat and Human Trackball

Jacek Fedorynski has recently created an air mouse, a device that attaches to a hat and functions like an actual mouse. Hat mouse, you ask? Instead of controlling it with hand movements, it requires you to use your head. Based on Adafruit’s Feather nRF52840 Sense, this air mouse works by reading accelerometer, gyroscope and magnetometer data, and connects via Bluetooth to run on Windows, Mac and Linux.

Read more…

Tachometer (RPM Meter) || DIY or Buy || How a 3€ sensor outdoes a 29€ product!

In this episode of DIY or Buy we will be having a closer look at a commercial tachometer (RPM Meter) and test it in order to find out that it is pretty much unusable. Afterwards I will show you how a 3€ IR distance sensor works and how we can use it to build a proper DIY tachometer that functions properly. Let’s get started!

Shooting Bullet Time Sequences with Raspberry Pi

Eric Paré is experimenting with Matrix-eseque effects using 15 Raspberry Pi Cameras and Xangle Camera Server software.

Bullet time photography allows a single instant in time to be captured by multiple cameras, enabling one to “spin” around the subject virtually after the fact. It’s perhaps most recognizable from The Matrix film, and more recently Eric Paré has been experimenting with the technique using an array of 15 Raspberry Pi Camera v2 modules and the Xangle Camera Server software package.

As seen in the video below, Paré is by no means a stranger to bullet time, having created some stunning effects with more expensive and physically larger digital cameras. The Pi Camera’s tiny size, however, allows 15 of them to be stuffed very closely together, for what is his best density ever on a multi-camera rig.

Read more…

Monitor CPU Usage with 12,288 Individually Addressable LEDs

Keeping track of how hot your CPU is running can be quite boring, as staring at a list of changing numbers gets old, quickly. That’s why Sebastian from the website There Ought to Be has created a cube with three faces that display CPU usage and temperature statistics. He was inspired to design this when he attended the 36th Chaos Communication Congress and saw the smaller cubes that people were building and using to show particles reacting to changes in the cube’s position. Rather than also making his cube battery powered, Sebastian wanted a stationary device that can plug into the wall, which allows for far more LEDs to be used.

Read more…

Gas Leak Detector Sensor | Fart Detector | Using Arduino Uno and MQ-2 Sensor | Methane Detector

Hello Guys I have Prepare a Tutorial Video on How You Can make a LPG gas Leak Detector Device using MQ-2 sensor and display the data on LCD In this Video I have Used MQ-2 Sensor with Arduino to Receive the Data from the sensor . MQ Sensor senses the air and send and sends it to the Arduino and the data is printed to the LCD Display .Then when the gas level crosses its threshold the light and buzzer are turned on and Alert is Displayed