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Nikola

Short organic chemist, once-in-a-while film photographer and engineer

Bulgaria
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This user joined on 10/12/2025.

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The MonoMeter is a discrete dual-slope integrating A/D, using a reversed NPN transistor as a stable reference
Project Owner Contributor

Reversed transistor makes a discrete voltmeter

nikolaNikola

Things I've Built

NDINST-01 Transmission Film Densitometer

In order to test black-and-white film/developer combinations, I needed a densitometer, a device which characterizes how opaque the film becomes after processing. I constructed mine from wood and a custom logarithmic transimpedance amplifier.

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Follow for the 'Hacklet' and latest news about hackaday.io
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Hackaday.io Project

lutetiumLutetium

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EasyIoT framework is cheap, reliable, secure IoT framework build from Raspberry Pi, Arduino and various sensors and transcivers.
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EasyIoT framework

easyiotEasyIoT

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Miniature VT100 with all the bells and whistles
Project Owner Contributor

diy-VT100 - A Miniature hardware terminal

kuldeep-singh-dhakaKuldeep Singh Dhaka

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Quick way to start with MCUs
Project Owner Contributor

Adventures with a STC89C52 development board

ken-yapKen Yap

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This open-source, low-power LTE shield uses cutting-edge CAT-M technology and also integrates GNSS location capabilities!
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LTE CAT-M1/NB-IoT Shield for Arduino

timothy-wooTimothy Woo

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An array of cosmic ray detectors across a landscape that demonstrates in light and sound how cosmic rays are constantly all around us.
Project Owner Contributor

Cosmic Array

robert-hartRobert Hart

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Emulate Citroen's Lexia / Actia Diagnostics tool to query the CAN bus and log the results to SD card.
Project Owner Contributor

CAN Diagnostics Logger with Arduino CAN shield

haydenhayden

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A couple parted out Kaypro keyboards and a tired old Apple IIc monitor become a resto-mod late 70s looking AVR development workstation
Project Owner Contributor

Atari AVR Development Workstation

john-andersonJohn Anderson

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A open source tool that aids in the learning of the sky map in amateur astronomy.
Project Owner Contributor

Galileo's Finger

brendan-ardaghBrendan Ardagh

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Easily extendable data logging platform with STM32F103RBTx, WiFi, microSD storage, LCD with four buttons, UART, and pulse counters.
Project Owner Contributor

Hardware Data Logger

robert-gawronRobert Gawron

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TRICORDUINO - 4.0 _ Scientific Tricorder with Arduino technology
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In search of a real Tricorder

antonio-cesar-de-oliveiraAntonio Cesar de Oliveira

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