The ULN2003 IC is an extremely versatile part, and with the help of [Hulk]’s deep dive, you might just get some new ideas about how to use this part in your own projects. Each of the seven outputs ...

Often, the only liquid level indicator you need is your eyes, such as when looking at your cold beverage on a summer’s day. Other times, though, it’s useful to have some kind of indicator light that ...

The ULN2003 datasheet specifies that it is a high-voltage high-current Darlington transistor array. Each consists of seven NPN Darlington pairs that feature high-voltage outputs with common-cathode ...