The phenakistoscope was invented in the 1800s as a way to view a series of moving pictures on a spinning disc. While the traditional implementation is ingenious in its own right, Nick Lim has created his own take on this venerable concept, using strobing light to break up frames instead of the slits-and-mirror arrangement of the original. His system utilizes a repurposed CD-ROM BLDC motor to rotate the discs — which feature phenakistoscope patterns that were printed out and pasted on top — and an overhead array of strobing LEDs to make the images come to life. An Arduino Nano controls the device, regulating motor speed and direction via a pair of L293D ICs, along with strobing frequency using a MOSFET. The result is a looping mini-video player that, unlike its inspiration, allows a few people to observe the animations at the same time! 📷 instructables.com/member/jollifactory

Play a lot of ping pong? Never lose track of the score or who's serving again! This DIY scoreboard uses a Mega along with an RGB LED matrix, some seven-segment displays, and an @adafruit FX Sound Board for effects. 🏓 hackaday.io/goveil1

YouTuber Wesley Kagan made his own version of Koenigsegg's Freevalve technology and put it in a Mazda Miata. The homebrew system is controlled by an Arduino Mega and uses a series of MOSFETs to operate 24V solenoids with a 5V signal. 🚘 youtube.com/wesleykagan 📷 @wesleykagan

Designed around a MKR WiFi 1010 and a gesture sensor, Intangible Surface is a versatile and cost-effective device that can be used to replace a number of touch-based interfaces — simple as well as complex. 👋 create.arduino.cc/projecthub/usavswapnil

Train a Nano 33 BLE Sense to detect the sound of running water (with @edgeimpulse) and then trigger a buzzer/LED timer to encourage proper handwashing. 🧼 create.arduino.cc/projecthub/enzo2

By popular demand, we are pleased to announce that it’s now possible to buy the Arduino MKR IoT Carrier. Originally forming a key part of the Arduino Oplá IoT Kit, we’ve responded to our community to make the carrier available on it’s own, thus enabling you to benefit from having a bunch of sensors, actuators and a display all featured on the one board — making it quicker and easier to take your IoT projects to the next level. Featuring a large set of built-in sensors and actuators as well as a useful color display, the carrier lets you focus on prototyping your IoT ideas right away by saving on the hassle of wiring and soldering these components. The carrier can become a WiFi, LoRa, NB-IoT or GSM-compatible device by seamlessly connecting to any MKR family board. Building a user interface for these boards is easy with the embedded color OLED screen, five capacitive touch buttons, and the five RGB LEDs. The integrated sensors (temperature, humidity, pressure, RGBC light, gesture and proximity) allow you to map the environment around the carrier, and should you need to capture any other data there are over 100 additional Grove sensors that can easily be connected directly to the carrier. Capture and store all the data locally on an SD card, or connect your MKR family board to the IoT Cloud for real-time data captured, storage, and visualization. ⚫️ The MKR IoT Carrier is now available on the Arduino online store! store.arduino.cc

Jim Bennett trained and deployed an audio classifier tinyML model onto a Nano 33 BLE Sense to identify different fart sounds. Programmed using Visual Studio Code, along with the PlatformIO extension. 💨 jimbobbennett.io 📹 twitter.com/jimbobbennett

Based on a Nano Every, this stroboscope is a precise and versatile instrument that can be used to measure the rotation speed of a motor, or to analyze periodic movements such as that of a vibrating string. Optionally, it can be connected to an electronic flash in order to decompose and photography fast motions. Moreover, it can be synchronized on an external signal in order to convert it into a timing light, which can be employed to set the ignition time of an old car engine. ✨ create.arduino.cc/projecthub/frenchy22

Inspired by persistence of vision (POV) projects, Sagarrabanana built a system that incrementally dispenses water as pixels on a flat surface, creating ephemeral dot matrix messages/images. This so-called “Bikelangelo” device is towed by a bicycle for ultra-mobile marking, and uses a pressurized tank for fluid storage. As he pedals, a series of seven valve open and close under Arduino Nano control. A Hall-effect sensor allows it to dispense accurately based on the bike’s speed, and a Bluetooth phone connection via an HC-05 module is implemented for text input on the go. 📹 instructables.com/member/sagarrabanana

Juan De Dios Santos deployed a TensorFlow Lite model on a Nano 33 BLE Sense to detect Pikachu and Bulbasaur plushies using the board's APDS9960 sensor. ⚡️ juandes.com 📷 twitter.com/jdiossantos

Want to get your high school students started with the Internet of Things? Check out the Arduino Explore IoT Kit — for use at home and in class! 🏫 Discover the Explorer IoT Kit: arduino.cc/education/explore-iot-kit #arduino #education #steameducation #stemeducation #educationtechnology #edtech #remotelearning

Build a low-cost sensor array for robotics using cheap HC-SR04 ultrasonic sensors and a Nano board. The Arduino code polls all the sensors and sends byte packets via serial interface with the index and the distance to a Python app for processing. 📷 albertonaranjo.medium.com