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82 projects
1.5k
4
5
A cute little DIY ElectroMyography (EMG) sensor!
Project Owner Contributor

Muscle BioAmp BisCute

deepak-khatriDeepak Khatri

419
1
0
If opamps are super useful, RRIO opamps even more. .
Project Owner Contributor

DIY LM358 RRIO OpAmp

steve-schneppSteve Schnepp

1k
5
4
Plug & Play Electromyography (EMG)
Project Owner Contributor

Muscle BioAmp Shield v0.3

deepak-khatriDeepak Khatri

2k
787
4
Clean hack of the otherwise very solid ART DJ-Pre II phono preamp with the aim of improving the existing design and enhancing its features
Project Owner Contributor

Audio - Phono preamplifier boost

jovanJovan

1.3k
5
3
DIY customizable 0.96'' display voltmeter, ammeter combo
Project Owner Contributor

Small OLED panel meter

marius-taciucMarius Taciuc

1.3k
563
7
Sentry is an ESP32 wifi camera specially designed for local AI mode, its firmware is completely open source
Project Owner Contributor

Open source ESP32-Camera for Yolov4/5/6

fiberpunkFiberpunk

1k
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

593
2
2
A custom Feather with SAM L21 microcontroller, paired with wings that let us interactively explore its integrated op amp peripheral.
Project Owner Contributor

Feather Op Amp Lab

joey-castillojoey castillo

999
1
2
Muscle (EMG) based game controller!
Project Owner Contributor

EMG dino game controller

deepak-khatriDeepak Khatri

6k
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

1k
4
6
Precision op amps and analog best digital in speed, noise, simplicity, and ease of implementation.
Project Owner Contributor

Precision Op Amps and Analog best Digital

paulpaul

8.2k
70
60
Holo is a small ornament that achieves a naked-eye 3D holographic effect through the reflection of a beam-splitting prism. We developed a lo
Project Owner Contributor

Holographic Wifi clock based on ESP32

fiberpunkFiberpunk

1.3k
13
12
Another Operational Transconductance Amplifier - a humble attempt to provide a tolerant discrete design for a vital opamp type
Project Owner Contributor

AORTA

helgehelge

1.8k
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

2.2k
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

291
2
2
Real world DC logic signal conversion to common microprocessor levels.
Project Owner Contributor

DC Input Protector - Level Shifter

dougDoug

2.7k
6
5
Simple and easy way to build your own FSK modulator and demodulator!
Project Owner Contributor

FSK MODULATOR & DEMODULATOR

mit41301mit41301

6.6k
23
33
CMOS Homemade Operational Amplifier module and a photo detector using it.
Project Owner Contributor

CMOS Homemade Operational Amplifier

mitsuru-yamadaMitsuru Yamada

423
4
5
Analog robot that uses two light dependent resistors to guide the robot towards a light source, and also reverse if it gets too close
Project Owner Contributor

Analog Light Chasing Robot

customelectronicsCustomElectronics

464
356
4
It simply converts sound into light.
Project Owner Contributor

Audio Visualiser

xtreme-techXtreme Tech

2.4k
5
8
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

595
3
4
I overheard some co-workers talking about a project that turned a PC Hard Drive into a speaker and I couldn't resist building one
Project Owner Contributor

Hard Drive Voice Coil Speaker

ted-sheflinTed Sheflin

331
4
3
Balanced Ternary Analog-to-Digital Converter (ADC)
Project Owner Contributor

Ternary ADC

shaosSHAOS

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

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