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82 projects
2.8k
9
5
RaspberryPi to measure and study EEG, ECG, EMG, EOG with PiEEG (sleep, stress control, robot control) not funded, https://pieeg.com/
Project Owner Contributor

Easy way to neuroscience with PiEEG for everyone

ildar-rakhmatulinIldar Rakhmatulin

2.2k
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

169
12
11
Two gene-protein interaction models were modeled using the saturating behavior of opamps to model the sigmoid concentration/rate curves.
Project Owner Contributor

Model nonlinear biochem reactions using opamps.

bruce-landBruce Land

2k
1
2
BioPotential amplification on your finger tip!
Project Owner Contributor

BioAmp EXG Pill v1.0

deepak-khatriDeepak Khatri

3.9k
8
15
A quad OpAmp Makes a Buck Regulator
Project Owner Contributor

OpAmp Buck Regulator

aaron-lagerAaron Lager

4.1k
33
39
LED array that lights up in response to motion and sends waves across the array.
Project Owner Contributor

interactive analog LED wave array

chrisChris

2.1k
9
15
Each line of the breadboard has an LED that glows based on the voltage on that line
Project Owner Contributor

Lightup breadboard

rasmusviil0rasmusviil0

632
5
6
Designing affordable BioPhysiology sensors for Human Computer Interface (HCI) and Brain Computer Interface (BCI)
Project Owner Contributor

$1 HCI & BCI

deepak-khatriDeepak Khatri

2.3k
5
7
Home made thermocouple and an analog cold junction compensator which gives output voltage directly proportional to temperature in °C
Project Owner Contributor

Thermocouple Amplifier

rudraksha-vegadRudraksha Vegad

1.4k
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

6k
48
68
An analog computer for solving sets of Lorenz attractor differential equations
Project Owner Contributor

Analog Lorenz Attractor Computer

cheeennppCheeenNPP

985
5
3
Long range infrared Beam Interruption Detector(BID) using infrared pre-amplifier OP AMP and using single IR transmitter and receiver diode.
Project Owner Contributor

Infrared Pre-Amplifier

mit41301mit41301

244
1
2
A simple signal generator and processor for synthesizing waveforms within the audio frequency range.
Project Owner Contributor

Synthesizer Opamp Galore

nblanchard7134Nblanchard7134

379
2
2
Ski Lift Status Map with LED Indication for Current Lift Operational Status White or Black PCB + Wood, Wifi connected & OTA Updates
Project Owner Contributor

Trail Map Live Lift Status Ski Map - Mammoth CA

kevin-briceKevin Brice

225
4
2
I've revisited Jim Williams' appnote on a wideband dynamic load
Project Owner Contributor

Dynamic Load for POL Converters

alex-lunguAlex Lungu

5.9k
36
34
An ultra-low noise amplifier (named EmoeNAP) capable to measure low-noise LDO/OPA's wide band output noise, and many other applications
Project Owner Contributor

Take a 'NAP' and enjoy a moment of silence

floydfishFloydfish

88
1
0
Connect phantom-power mics with balanced XLRs to a simple stereo recorder with fixed mixer settings for 3 or 5 channel Decca Tree recording
Project Owner Contributor

DeccaTree stereo downmixer

techcolabcojeTechColab.co.je

1.5k
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

2.5k
13
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

2.2k
8
9
A minimal 4-wire milliohm meter with 4.5 digit display
Project Owner Contributor

SDO Milliohm Meter v1

kuba-sunderland-oberKuba Sunderland-Ober

2.2k
9
10
Ultra low cost amplifier circuit for pH sensor and 3.3V Microcontrollers
Project Owner Contributor

ultra low cost pH amplifier circuit for 3.3V MCU's

davidDavid

843
7
8
An integrated healthcare and well-being system for Alzheimer's patients to live a better life
Project Owner Contributor

I'm Here (IH'23)

yassin-ali-salah-aliYassin Ali Salah Ali

628
182
2
A modular mixer where it's easy to add more channel strips.
Project Owner Contributor

Modular Multichannel Stereo Audio Mixer

david-moreno-monteroDavid Moreno Montero

193
1
2
Op-amp based sine generator for FlySky Radio Controlled Transmitter.
Project Owner Contributor

Sine Control: Analog Computer for RC Tx

johnJohn

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