Average rainfall 2001-2016, global tropics

Map: Average rainfall 2001-2016, global tropics

Module Project Nano

component: Red laser 650nm

Thomas Gumbricht bio photo By Thomas Gumbricht

Introduction

Red lasers at 650 nm are quite common as components or breakout boards (modules). Actually pinning down which laser it is, is not so easy. I have different versions, and I am not sure if they are 3 or 5 v, or 1 or 5 mW. They do differ slightly is diameter and also in the focus of the beam. So I think they are different.

You can wire the laser directly, without a module (or breakout board). Or you can get the laser on a breakout board.

3v laser from pchbutik

The component lasers that I have are from pchbutik.se, they are 3 v and with an output of 1 mW and require less than 40 mA. This is sufficient for my needs.

Laser component.

5v lasers

At aliexpress you can get a package of 10 pieces 5v 5mW similar lasers at 1/10 of the price (if you buy a package of 10).

Module Project Nano