The reason I’m waffling on about all this here is that, just a couple of months ago, Joe taught me a simple but effective trick. Since he does a lot of work with 16-pin DIL logic devices, Joe has ...

The LM3914 LED bar graph driver was an amazing chip back in the day. Along with the LM3915, its logarithmic cousin, these chips gave a modern look to projects, allowing dancing LEDs to stand in for… ...