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Posts Tagged ‘LM358’

Automatic fan controller for server racks

Thursday, March 29th, 2018

Dilshan Jayakody published a new build: In this post we describe fan controller which we designed for our 9U wall mount server cabinet. This fan controller is designed to drive a 12V DC cooler fan with pre-configured intervals or by monitoring the temperature of the server cabinet. Core components of...

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Posted in DIY | 1 Comment »

Adjustable constant current source

Friday, May 12th, 2017

Dilshan Jayakody has published a new build: The current source introduced in this article is capable to handle current up to 6A with maximum input voltage of 50V. This is an operational amplifier based adjustable current source and it uses LM358 in a general voltage follower configuration. To handle large...

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Posted in tools | 5 Comments »

Soldering station to drive HAKKO 907 handles

Thursday, July 16th, 2015

Dilshan Jayakody published a new build: To keep it simple we choose LM358 dual operational amplifier IC to monitor the 907's thermocouple and drive the TRIAC. The entire control circuit of this soldering station is powered by single rail 5V DC power supply. To drive both handle and station we...

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Posted in DIY, tools | 2 Comments »

125 kHz RFID reader based on ATtiny13

Monday, June 3rd, 2013

125 kHz RFID reader based on ATtiny13 by Vassilis Serasidis This is an 125 kHz RFID reader that is based on ATtiny13 micro-controller and an LM358 Operational Amplifier. No special RFID chip is used. The reading, decoding and printing the unique ID from 125 kHz RFID tags is made entirely...

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Posted in RFID | 2 Comments »

Recent Comments

  • Joe Desbonnet: Ya, I can recommend the low melting point solder. I used brand 'ChipQuik' and it's amazingly easy to use.
  • Jerome: I need a new BusPirate for the Fablab ;) Many thanks!
  • Max: Seems like an unexpectedly violent way to remove the chip indeed. A hot air station should of course do the job just fine, but in...
  • jose: Part removal described here is pure butchery, the cheapest hot air station will do a fast and clean job removing the QFP, heat air to...
  • Cody: Yes please