The city of Buriticupu, in the northeastern tip of the Brazilian Amazon, is being slowly swallowed by the earth. In recent weeks, huge sinkholes, several meters (feet) deep, have led the municipal ...

The circuit was conventionally designed with eight LED audio level meter made out of two low power quad op-amps which utilizes LM324. Volume Unit – an entity equal to a decibel for expressing the ...

Want to monitor the company system without continually loading up the Splunk dashboard? It turns out that they’ve got their own Python package which makes pulling down data a snap. All [Rick] needed ...

Okay, this circuit is really part of the "Knight Rider" project. I have separated it purely for the benefit of web search engines looking for a "Hard Drive Activity Meter". It uses the same basic ...

[Nick Lombardy] took on a job almost every maker imagines themselves doing at some point. He built a giant LED wall and he did a damn fine job of it, too. Introducing BoneBlocker. BoneBlocker is an 8 ...

Low-profile design and a table-top form factor allow the LX-24 to fit into almost any studio situation, requiring no holes or cut-outs in the furniture. The meter bridge features three sets of bright, ...

Here is a Simple LED Volt meter to Monitor the charge level in Lead Acid Battery or Tubular battery. The terminal voltage of the battery is indicated through a four level LED indicators. The nominal ...