---
title: Low-cost sensing with LEDs
date: 2009-04-15T09:44:00+01:00
draft: false
emoji: 💡
tags:
  - from-tumblr
---

[hackaday.com](https://hackaday.com/2006/02/21/low-cost-sensing-and-communication-with-an-led/)

Woah, you can use LEDs as ambient light sensors? I suppose it makes sense, why didn’t I think of this before! :P This could come in very handy.