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81 projects
1.5k
5
10
An FPGA-based video input delay meter using a DVI output chip and an amplified photodiode light sensor
Project Owner Contributor

Video Input Delay Meter

mike-kibbelMike Kibbel

235
1
2
Op-amp based sine generator for FlySky Radio Controlled Transmitter.
Project Owner Contributor

Sine Control: Analog Computer for RC Tx

johnJohn

747
4
7
Active power load for testing of DC power supplies, constant current and constant power modes.
Project Owner Contributor

DC active power load

ms-bossMS-BOSS

726
340
4
Fast Compressor built with minimal components
Project Owner Contributor

Dirty Dan Compressor

john-wetzelJohn Wetzel

10.3k
40
43
An open-source Analog Lock-In Amplifier LOCKDOWN: LOCK-In Device for Observing Weak and Noisy signals
Project Owner Contributor

LOCKDOWN: An open-source Analog Lock-In Amplifier

mark-omoMark Omo

3.9k
3.5k
45
This module is based on esp32, uses arduino for programming, and the firmware is open source. It realizes the core functions of wifi transfe
Project Owner Contributor

Wifi Module For 3D Printer(ESP32)

fiberpunkFiberpunk

1.1k
6
8
Voltage is set with three BCD switches with a step of 10mV
Project Owner Contributor

Fully analog digitally controlled voltage source

klimaKlima

1.9k
4
5
A linear CC-CV charger to handle various secondary lithium chemistries. Built with Op Amps and Comparators.
Project Owner Contributor

Op Amp Based Lithium Charger

roflhoffROFLhoff

2.6k
14
19
This simple circuit with an Op Amp LM358 produces a characteristic sound triggered by a flash of light, a touch or an electromagnetic pulse.
Project Owner Contributor

Triggered Sound Generator

burkhard-kainkaBurkhard Kainka

1.6k
6
10
A proof of concept which demonstrates how analog op amps can perform digital logic functions.
Project Owner Contributor

OP-Amps Gone Digital - A BCD to 7 Seg Converter

gschmidt958gschmidt958

116
1
1
Learn about vehicle evaporative emission control systems, the most common source of check engine lights, and Pirani gauges
Project Owner Contributor

Vehicle fuel cap test

brianBrian

276
1
2
A simple signal generator and processor for synthesizing waveforms within the audio frequency range.
Project Owner Contributor

Synthesizer Opamp Galore

nblanchard7134Nblanchard7134

1.1k
5
4
Plug & Play Electromyography (EMG)
Project Owner Contributor

Muscle BioAmp Shield v0.3

deepak-khatriDeepak Khatri

1.7k
13
15
Can you hear the difference between Op Amp´s? Yes! With this headphone amplifier.
Project Owner Contributor

Listen to the Op Amp´s

stephan-martinStephan Martin

3.1k
20
22
Plugging modules in modified prototype boards allows an affordable and flexible analog computer system with unusual features
Project Owner Contributor

Flexible Analog Computer

rainer-glaschickRainer Glaschick

429
1
1
Video game logic made from analog circuit. Activate power at the right time in to hit your opponent and win.
Project Owner Contributor

Analog Circuit Game - Switched Tag

pablo-antonio-camacho-jrPablo Antonio Camacho Jr.

302
2
2
Real world DC logic signal conversion to common microprocessor levels.
Project Owner Contributor

DC Input Protector - Level Shifter

dougDoug

1.6k
4
8
Precision peak detector using op amps to manage input impedance, peak stability and output drive.
Project Owner Contributor

Precision peak detector using Op Amps

joseph-thomasJoseph Thomas

2.3k
23
21
A very useful test fixture to convert the voltage or impedance seen on its input to a variable frequency audible tone
Project Owner Contributor

Beeper Box: Analog V2F

john-guyJohn Guy

1.6k
4
5
A cute little DIY ElectroMyography (EMG) sensor!
Project Owner Contributor

Muscle BioAmp BisCute

deepak-khatriDeepak Khatri

4.2k
8
15
A quad OpAmp Makes a Buck Regulator
Project Owner Contributor

OpAmp Buck Regulator

aaron-lagerAaron Lager

7k
25
19
Drive silicon photomultipliers (SiPMs) and build yourself a simple scintillation counter quick and easy!
Project Owner Contributor

Mini SiPM Driver Board

nuclearphoenixNuclearPhoenix

237
2
2
For the cause of environmental protection, we made a smart sorting trash can
Project Owner Contributor

Smart-trash-bins

chymuCHYMU

2.1k
9
11
Last year, I found a 5FP7 CRT on ebay for $45. My first thought was "Wouldn't it be cool to build a RADAR scope?"
Project Owner Contributor

ADS-B on a real RADAR CRT

j-cJ C

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