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Arduino Analog Write with 12 LEDs

Analog Write with 12 LEDs on an Arduino Mega

This example fades 12 LEDs up and the down, one by one, on an Arduino Mega board. Circuit image developed using Fritzing. For more circuit examples, see the Fritzing project page Connect the longer, positive legs of (anodes) 12 LEDs to digital pins 2-13 through 220 ohm current limiting resistors. Connect the shorter, negative legs (cathodes) to ground. Schematic Code In

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DIGITAL RGB AMBIENT LIGHT PROXIMITY AND PHOTOPLETHYSMOGRAPHY SENSOR

DIGITAL RGB / AMBIENT LIGHT, PROXIMITY AND PHOTOPLETHYSMOGRAPHY SENSOR

Integrated Device Technology (IDT), a wholly owned subsidiary of Renesas Electronics Corporation introduced the OB1203, a fully integrated all-in-one biosensor module for mobile and wearable devices. The OB1203 is the smallest sensor of its kind. In addition to non-invasive measurement of heart rate and blood oxygen levels, the OB1203 module integrates additional sensors needed in

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Adafruit Flora NeoPixel LED Ring Headphone mod

Adafruit Flora NeoPixel LED Ring Headphone mod

Wearable Arduino mod for your headphones. Non-invasive procedure for headphones that don’t have room inside the drivers or you don’t want to hack apart your high end cans. Adafruit just put out a tutorial for adding pattern blinking LED lights to headphones.  This instructable takes it one step further. This project is really the Adafruit Ampli-tie project morphed

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like timer includes LED driver and charger

like timer includes Sub-1V 555- LED driver and charger

Semtech has introduced an analogue timer chip that runs from 0.9V, but can drive LEDs at over 3V. Called SX8122, to the timer it adds: a simple battery charger, a boost converter, and a power-down controller. “It is designed for on/off button debouncing, delayed start-up timing, programmable sequencing and timing-out in toys, remote control, electric

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