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7 Segment Clock Using Arduino
Sreeram.zeno Apr 02,2022
What is LED matrix?An LED matrix or LED display is a large, low-resolution form of dot-matrix display, useful both for industrial and commercial information displays as well as for hobbyist human–machine interfaces. It consists of a 2-D diode matrix with their cathodes joined in rows and their anodes joined in columns (or vice versa).What is the difference between RGB LED and LED matrix?RGB matrix panel displays are fundamentally different from other types of panel displays like our Flexible LE…
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Smart Arduino Digital Meter with HC-SR04 and TM1637
Stramaglia Apr 01,2022
There are quite a few distant meters made with Arduino, but this is a special one.Two reasons why this is special: First because it's made with a 328P chip with boot loader; Second because it has a push button that allows to give you in real time the delta distance of a measure.Let me explain how it works:When switched on, the meter measures the centimeters distance from the meeter to the front obstacle.At that point, pressing the push button, the meter does a reset to zero and moving it from th…
DIY
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Drive an Old PC Fan with Arduino
Stramaglia Apr 01,2022
A few weeks ago, I found this old computer fan that was about to be thrown away.I took a look on the net, and I found out that it can be controlled by Arduino.So, this gave me the input, to create this tutorial on how to program Arduino to pilot a fan. The components I used are: Arduino Nano, rotary encoder, 12 volt power supply and an I2C OLED display.The rotary encoder, connected to Arduino, when rotated, increases the voltage of the blue wire of the fan connected to D3. This action, makes the…
Arduino DIY
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Simple and easy weather station for indoor and outdoor
Stramaglia Apr 01,2022
The idea was to combine the 433Mhz transmission with exchange of data between two devices so a simple weather station, that measures, internal and external temperature, was the right project for me.It's made out of two components: an indoor receiver, and an outdoor transmitter. The transmission is managed at 433Mhz.The components and the electrical diagram for both devices, are showed in the video.The receiver is very easy to use. to toggle between the external and internal temperature, you need…
Arduino DIY
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Arduino Audiometric Device
Stramaglia Apr 01,2022
I had a medical test and the doctor measured my hearing. When I left the medical center I said to myself.... I have to build one with Arduino :-)To make it work, you need to plug the headset in your left year and then start increasing the volume until you hear a sound. When you hear the sound, you need to press the knob that will allow you to check on the next frequency. The display will give you all the info required.After checking the left ear, you will need to check the right one.The red colo…
Arduino DIY LED
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FTDI Programmer For Arduino
Sreeram.zeno Apr 01,2022
Future Technology Devices International Limited, commonly known by its acronym FTDI, is a Scottish privately held semiconductor device company, specialising in Universal Serial Bus (USB) technology.It develops, manufactures, and supports devices and their related cables and software drivers for converting RS-232 or TTL serial transmissions to and from USB signals, in order to provide support for legacy devices with modern computers.The company also provides application-specific integrated circui…
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Spin The Wheel!
Stramaglia Apr 01,2022
Today I built with Arduino a simple game for 2 players. Each player have to spin the wheel and the winner is the player that scores the highest number. The numbers are generated randomly.The wheel used for the project, comes from a broken Hard Drive. I removed the motor and disks, and placed them on an old wooden box. With Arduino the game was easy to implement.Components used are:Arduino Nano, Old Hard Drive Motor, 7 Segment 4 digit display, Buzzer, Led Strip WS2812 (11 leds), 2x LED Red and Ye…
Arduino LED
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Sensor Station
Stramaglia Apr 01,2022
I wanted to have a simple station that monitors: Temperature, Humidity, Heat index, Carbon Monoxide, Alcohol, Carbon dioxide, Toluene, Ammonium and Acetone. It's made out of:- Arduino Nano- DHT 22- MQ 135- 5V Power Supply- Push button (Normally open)- DF Robot 2.2" display (DFR0529)?
Arduino DIY
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Cool Way to Count the Euro Coins!
Stramaglia Apr 01,2022
This is a cool way to count coins. It's a scale that, with the help of Arduino, a display and a push button, can count the amount of Euros coins on the plate. At the beginning, you need to calibrate the scale by pressing the button with the empty plate, and then with four coins of two Euros. You just need to follow the instructions on the display, and, at the end of the process, you will have the value in Euros of the coins. This was possible because each coin has a specific weight. Such weight …
Arduino DIY
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Cool Timer with Voice synthesizer
Stramaglia Apr 01,2022
I was looking for a timer that could be setup without looking at the display. Mainly the purpose was to have, while cooking, a voice telling me how many minutes were left before the end.So I created this simple device with the intent to use it in the kitchen.The use is very simple. There is only one push button that every time you press it, there is an increase of one minute and a voice tells you how many minutes you have accumulated. If you make a mistake, you need to keep a long push on the bu…
Arduino DIY
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