APP NOTE: Digital potentiometer to control LED brightness
Led

APP NOTE: Digital potentiometer to control LED brightness

Controlling LED brightness through digital potentiometer and a LED driver from ON Semiconductor. Light-emitting diodes (LEDs) require a regulated current, and their brightness is proportional to the current that flows through them. Some LED drivers use an external resistor to set the...

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6CY7 dual triode valve amplifier
Audio

6CY7 dual triode valve amplifier

Josh built this 6CY7 dual triode valve amplifier: I’ve always wanted to know what the “tube magic” was all about. There is much opinion in the science of music production, probably because music and its perception is highly personal and subjective. Ive always imagined that since...

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TinyLED 7-Segment Displays
Led

TinyLED 7-Segment Displays

I've seen a few other people experimenting with making custom LED displays using discrete LEDs so I thought I'd like to take my own stab at it. by sjm4306 @ hackaday.io TinyLED 7-Segment Displays -...

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Cluster HAT – Cluster Computing Made Easy Using 4 Raspberry Pi Zero
Raspberry Pi

Cluster HAT – Cluster Computing Made Easy Using 4 Raspberry Pi Zero

Cluster Computing brings the power of multiple computing units to serve one single purpose. If you are looking for some performance boost and you got yourself some freely available computing units, cluster computing might be what you need. Unfortunately, building yourself one is not that...

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The Cheapest and Simplest Pulse Counter
Mcu

The Cheapest and Simplest Pulse Counter

This counter is made only from an ATtiny13 and LED diodes. Did you ever need a cheap and simple (with one digit only) pulse counter? This is the maximum optimization and simplification. Thanks to Charlie Allen. The Cheapest and Simplest Pulse Counter -...

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PH12FEI – Thin Mini-ITX Board with Coffee Lake CPU
SBC-SiP-SoC-CoM

PH12FEI – Thin Mini-ITX Board with Coffee Lake CPU

Thin Mini-ITX Mainboard for compact display systems With the Thin Mini-ITX Board PH12FEI, ICP Deutschland offers system integrators a motherboard to produce particularly flat displays or embedded systems. The PH12FEI is equipped with an IO Shield at half height and horizontal...

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New large-format yellow tri-color e-paper displays open the door to more effective and engaging sign
LCD/OLED

New large-format yellow tri-color e-paper displays open the door to more effective and engaging sign

Pervasive Displays (PDi), a world leader in e-paper displays (EPDs), today launches its new range of large-format tri-color displays that render text and images in yellow, as well as black and white. With both 7.4 and 12.2-inch models available, the new EPDs open up fresh...

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The only 2.2″ TFT designed to fit 1U front panels
LCD/OLED

The only 2.2″ TFT designed to fit 1U front panels

The DT022CTFT is a 2.2 inch TFT LCD module with 240 x 320 RGB resolution. This LCD module is the only high resolution 2.2” TFT on the market that is designed specifically to fit 1U rack mount equipment. The a-Si TFT LCD uses a single chip driver (Ilitek ILI9341) that provides a full...

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