In an effort to help provide paralyzed patients with an easier way to operate their wheelchairs, these makers have developed a system that uses an OpenBCI brainwave cap to collect electroencephalogram (EEG) and electromyography (EMG) signals, literally from a user’s head. Data is then sent to a PC running OpenBCI software and passed along to an Arduino Uno via Bluetooth for control.
Despite the fact that making a hilarious yet not deceitful joke with a jack-o’-lantern on Halloween night is not unobtrusive, I decided to create an exceptional event for my guests on Halloween when they ring the doorbell by designing a jack-o’-lantern doorbell with intriguing features. And, not surprisingly, I only let some of my closest friends know about my new doorbell features by giving them registered RFID tags (entrance permits) to make my other guests frightened even a little bit 🙂 In detail, this doorbell talks to the guests and informs the user via WhatsApp when the guests ring the doorbell or show RFID tags or cards.
First of all, to make the doorbell talking with the guests after an interaction, I generated voices from texts for each occasion I wanted the doorbell to talk. You can get more information about how to create voice files over text files in the following sections.
Ground penetrating radar systems, which can be used to sense the density of objects under the Earth, are normally seen as a fairly exotic piece of equipment. Naturally, such devices cost thousands of dollars. Mirel Paun’s “GPRino” prototype, though, aims to accomplish this viewing task for the comparatively paltry sum of $300.
The GPRino uses antipodal Vivaldi antennas to see into the ground, under control of an Arduino Mega. Onboard visualization is handled by an LCD shield, and collected data can also be transmitted to a PC for further analysis.
Although the ESP8266 01 WiFi Module has a wide support and a good community crowd, the Arduino Uno board takes advantage of it’s ease of use and beginner-friendly layout over Arduino Micro for being one of the most used boards for cheap IoT solutions. As a result, there aren’t many tutorials documenting how to use the module with this board. So here’s a short & simple tutorial for people getting started with IoT and want to use the Micro+ESP01 combination.
Automated lightening of staircase not only helps to save electricity but also takes us to advancement in quality living of life. We generally uses normal circuit to turn on and off the light in stairs, but there is loss in electricity since we turn it off only at once during sleep. So, in this tutorial we are going to make the automated staircase that will light up only when it senses motion of people passing through stair.
We wanted to try out the Arduino Portenta that has arrived, and what better way than to test it out with our STEMMA QT boards? There’s a 5 pin expansion port, which exposes the I2C pins and power+ground. Using our handy MKR to STEMMA cable https://www.adafruit.com/product/4483 we can plug in any of our 50+ sensors and displays. Here we show how adding an OLED and IMU is plug-n-play trivial and our examples just work!
The idea for this project came from my daughter.
She wants a robot, and this robot can open its mouth so that it can put food in its mouth.
So, I searched indoors for things that were available: cardboard, Arduino Nano, ultrasonic sensor, servo motor… to be able to create a robot for girls to play in the fastest time, and at the lowest possible cost.
Earlier this year we covered an automated perpetual calendar, which used three ring gears to align the date, month, and day of the week with a viewing window. After building one of these devices, Wolfspaw was inspired to put a new “spin” on things by combining it with a linear Cryptic Calendar, featuring digits that only make sense in the viewing window.
The resulting project looks like a few rings inscribed with alien symbols, until each is rotated in place. This frames the numerical date, as well as abbreviated month and day so that they can be read.
A lot has changed since Back To The Future was released in 1985. During these last 3.5 decades, we’ve seen a plethora of hybrid and electric cars enter the market – from the practical Toyota Prius to the industry disrupting Tesla. The EV revolution has also inadvertently led to a new era in DIY electric cars. With more electric cars on the road, Motors, inverters and battery cells, which used to be hard to come by, are now readily available on the after market.
John DeLorean’s DMC-12 – the car we all know and love as Doc and Marty’s Back to the Future Car was meant to be the definitive sports car of the 1980’s. The gull-wing doors and stainless steel exterior made it a unique curiosity for car enthusiasts. However, there was one big problem with the DMC-12, its small 6 cylinder engine put out a feeble 130 hp. But for one special DeLorean, a Buick Grand National Engine swap created, what was referred to as, the world’s fastest DeLorean. The turbocharged 4.3 liter v6 was tuned to 570 horsepower.
The device presented in the video represents marble maze game that is controlled using a smartphone via Bluetooth connection.
The device consists of two parts. The first is the Arduino part where the servo motors are controlled and the second part where the signals generated by the accelerometer are sent via the Android smartphone. It consist few components:
– Arduino Nano microcontroller
– Bluetooth adapter
– and two 9g servo motors