Quantcast
Channel: op amp – Make: DIY Projects and Ideas for Makers
Browsing latest articles
Browse All 12 View Live

Image may be NSFW.
Clik here to view.

Jamming on Lightwaves in this Weekend Project

Build an optical guitar using a common LM386 audio amp chip. Read more on MAKE The post Jamming on Lightwaves in this Weekend Project appeared first on Make:.

View Article



Image may be NSFW.
Clik here to view.

Irrigating Your Garden With an Op Amp

Instructables user diy_bloke built this op-amp controlled pump for his garden, using the classic 741 operational amplifier. He wrote a very detailed how-to including showing how to etch a PCB, as well...

View Article

Image may be NSFW.
Clik here to view.

Use an Op Amp to Make a Self-Dimming Night Light

On Make: Projects, Jason Poel Smith uses a pair of LM741 op amps to build an self-dimming night light that turns itself off after a period of time so you don’t waste electricity. The timer is made from...

View Article

Image may be NSFW.
Clik here to view.

Make a Heartbeat Detector With an Op Amp

Scott Harden’s DIY electrocardiogram (ECG) uses a LED shining light through his finger into a photo transistor, with the resulting signal amplified with a LM324 quad op amp. The goal of this project is...

View Article

Image may be NSFW.
Clik here to view.

Visualize Your Heartbeat With This Homemade Pulse Sensor

Infrared Pulse Sensor is the latest addition to our beginner-friendly series of Weekend Projects. Inspired by a photoresistor pulse sensor, MAKE's Technical Editor Sean Michael Ragan built this...

View Article


Image may be NSFW.
Clik here to view.

Projects with Ryan Slaugh: Simple Amplifier

Building upon my last video, I’ve decided to make a simple circuit using some op-amps.  One is the general op-amp LM741. The other is a specific op-amp, LM386, that is designed for audio...

View Article

Image may be NSFW.
Clik here to view.

Projects with Ryan Slaugh: Active Filters & Tool Suggestions

Over the last few videos I have highlighted helpful circuits. In this video, I highlight an active filter setup utilizing an operational amplifier. Filters are very helpful when working with analog...

View Article
Browsing latest articles
Browse All 12 View Live




Latest Images