If you have multiple applications open in Windows, you may want one to be louder than the other, but what if you want to adjust levels with physical sliders like an actual DJ? If that sounds interesting, check out this controller by “Aithorn.”
The device uses an Arduino Nano to read signals from each slider and pass this info over to the computer. A Python script, along with a VBScript helper, runs on the PC to control the master and program-specific volumes.
PWM is widely used in electrotechnics for lights, chargers, motors, generating different signals, etc. which are all present in robots as well. In short, PWM is a way of expressing analog values in the digital world.
You have probably wondered how, in the digital world, we can use some other value than supply voltage – which is output value from our microcontrollers like Arduino. The solution for this is PWM, which is essentially a microcontroller turning the output pin on and off very fast so that, for example, rather than seeing LED blinking, our eyes see an average brightness of LED being on and off.
You’ve got your design ready to go, you know you have the right components… but where exactly did you place that particular resistor? With the Resys drawer system by Lynlimer, you no longer have to wonder — just type in the needed value and the proper drawer lights up automatically.
The device is based on an Arduino Nano, with an LCD display for text output and a numeric keypad for value entry. The proper drawers are lit via WS2812B addressable LEDs, held in 3D-printed holders.
It’s a clever project that could be expanded to well beyond the 16 drawers now used. Code, STLs, and circuit diagrams are available in Lynlimer’s write-up if you want to make your own!
How has Arduino inspired you over the last 15 years? Tell them in a short video for a chance to win a limited edition t-shirt and to be featured in their birthday montage!
? Send yours to: arduinoday2020@arduino.cc
?️ Deadline is March 6th
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This detector has the following functions:
Digital infrared temperature sensor above the mask can detect the body temperature in real time and show the temperature to others.
The detector on the other side is used to detect the temperature of the person I have contacted.
If the other person’s temperature is normal, the RGB LED ring in the left eye part is green.
If the other person ’s temperature exceeds 38 degrees Celsius, the RGB LED ring is red and accompanied by an alert, indicating that he is a potential carrier, so I will advise him to go to the hospital for treatment.
**crackedconsole does not endorse this nor can we assure this will protect you from infection.
The smartphone changed the world, but it wasn’t all for the better. Mobile devices are packed full of endless productivity-killing distractions, and the ability to actually make a phone call almost seems like an afterthought now. A frustrated Justine Haupt came up with an unorthodox solution: she designed and built a mobile phone with a rotary dial that looks like it’s 40 years old.
There’s an entire generation that probably won’t be able to make sense of Haupt’s Rotary Cellphone or why it has a bizarre circular wheel affixed to the top. For the rest of us who suffered through a time when placing calls meant spinning a plastic wheel, Haupt’s creation seems like it was brought to Earth from a parallel dimension where mobile phones took an entirely different evolutionary route, and where technologies like touchscreens never came to fruition.
In this video we will learn how to build an Arduino CNC foam cutting machine. This is a typical DIY CNC machine because it’s made out of simple and cheap materials, some 3D printed parts and it has an Arduino as a controller.
Using 7-segment displays to make a clock is nothing new, but what if you combined 144 of them together to create an epic LED timepiece? That’s exactly how this project was made, allowing it to show surprisingly smooth mega-numbers and a colon set at an angle.
The build itself is controlled by an Arduino Nano, along with an RTC module for timekeeping and 18 MAX7219 drivers to activate over a thousand (1,008) individual segments.
