With Instructables you can share what you make with the world, and tap into an ever-growing community of creative experts.
We have a be nice comment policy. Please be positive and constructive.
We noticed you attached photosto your comment.
You COULD do, but the 324 is a better amp.
741s run hot because they drink current.
BTW LM324 the better choice is a quad ( 4 in a dip ) op-amp IC
The lm324 uses 0.7ma for all four and can work down to a 3volt supply.
The lm741 uses 3ma to 15ma for each op-amp and needs a +-15volt supply.
Short answer is yes. As far as I can remember from my simiconductors class the chariceristics of both (for what you're wanting to do) are pretty much the same.
Multi-DIY Humidity Sensor + Irrigating System
Monitoring residential water usage by reading municipal water meter with Hall effect se…
LinkIt One Remote Heart Rate Monitor
Sound Sensor Using A LM324
home-made Heart Rate Monitor
BLE Heart Rate Sensor
Homebrew Arduino Pulse Monitor (Visualize Your Heartbeat)
Microcontroller measures heart rate through fingertip
Pulse Sensor with Arduino
Arduino powered digital pulse meter
Posted:Sep 29, 2014
Let your inbox help you discover our best projects, classes, and contests. Instructables will help you learn how to make anything!
© 2016 Autodesk, Inc.