DIY Pixel Art Frame Using Raspberry Pi Zero
DIYIoTLedRaspberry Pi

DIY Pixel Art Frame Using Raspberry Pi Zero

Have you ever wanted to get an interesting art frame? That can display and flip photos, scroll text, show the weather or display social media notifications? Frederick Vandenbosch’s new tutorial is for building an art frame using 32x32 LED matrix and Raspberry Pi Zero. Electronics...

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Temperature sensors accurate to -40°C
ICSensor

Temperature sensors accurate to -40°C

by Denis Meyer @ elektormagazine.com: With a local (on chip) precision of ±1°C over a range of temperature from –40°C to +65°C, and a remote (up to 3 external sensors) precision of ±1°C extended up to +125°C, the MCP990X digital temperature sensor offers an economic and...

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A health patch a day keeps the doctor away
Technology

A health patch a day keeps the doctor away

Belgian Imec and its subsidiary Holst Centre have developed a health patch which tracks physical and cardiac activity while monitoring bioelectrical impedance. The technology is up for licensing. by Jan Buiting @ elektormagazine.com The health industry has recognized the challenges...

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Ambient light sensor for heart rate sensing in wearables
Sensor

Ambient light sensor for heart rate sensing in wearables

Everlight (New Taipei City, Taiwan) has introduced an ambient light sensor that operates at 550nm with a very low signal calculation failure rate and a high current efficiency. An anticipated application for this device is heart rate signal detection in wearable electronics for the...

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Chemical Wireless Communication Without Electronics
ScienceSensorTechnology

Chemical Wireless Communication Without Electronics

Researchers at Stanford University have just invented a revolutionary way of communication. They are replacing the conventional way of wiring, wireless, radio and Bluetooth connectivity using chemicals that can be found in every house. Nariman Farsad, now a postdoctoral fellow at...

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Arduino-Based VU Meter
ArduinoLed

Arduino-Based VU Meter

The voice unit (VU) meter is a device that displays a representation of the signal level in audio equipment. It is used in some consumer audio equipment for utilitarian purposes such as in recording devices or for aesthetics like playback devices. The original VU meter is a passive...

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Atmel ATtiny417/814/816/817 Include Core Independent Peripherals (CIPs)
Mcu

Atmel ATtiny417/814/816/817 Include Core Independent Peripherals (CIPs)

Atmel tinyAVR microcontrollers are optimized for applications that require performance, power efficiency and ease of use in a small package. All tinyAVR devices are based on the same architecture with other AVR devices. The integrated ADC, DAC, EEPROM memory and brown-out detector let you...

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Arduino Ouija Board
ArduinoDIY

Arduino Ouija Board

Ouija Board is a flat board marked with the letters of the alphabet, the numbers 0–9, the words "yes", "no", along with various symbols and graphics. It uses a small heart-shaped piece of wood or plastic called a planchette. Participants place their fingers on the planchette, and it is...

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