---
title: "The Hand Mounted Laser Controller"
url: "https://maker.wiznet.io/irina/projects/The-Hand-Mounted-Laser-Controller/"
markdown_url: "https://maker.wiznet.io/irina/projects/The-Hand-Mounted-Laser-Controller/md"
type: "UCC: User Created Content"
author: "irina"
author_url: "https://maker.wiznet.io/irina/"
original_author: "irina"
original_url: "https://www.hackster.io/deedpa1112/the-hand-mounted-laser-controller-9995fb"
published: "2022-03-29"
language: "en"
hardware: ["Teensy USB 3.2 Development Board", "Rotary Encoder with Push-Button", "Itead W5100 Ethernet Network Module", "ElectroPeak 0.96\" OLED 64x128 Display Module", "Photo resistor", "Resistor 1k ohm"]
likes: 0
views: 163
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# The Hand Mounted Laser Controller

> The Hand Mounted Laser Controller

Original author: irina (source: https://www.hackster.io/deedpa1112/the-hand-mounted-laser-controller-9995fb)

## Components

- **Teensy USB 3.2 Development Board** x 1 ([docs](https://www.pjrc.com/store/))
- **Rotary Encoder with Push-Button** x 1
- **Itead W5100 Ethernet Network Module** x 1
- **ElectroPeak 0.96" OLED 64x128 Display Module** x 1
- **Photo resistor** x 1
- **Resistor 1k ohm** x 1
- Software: **Arduino IDE** ([docs](https://www.arduino.cc/en/software))

## Documents and links

- [Github](https://github.com/DevonPalma/SmartRoofController/tree/main/MainTeensyCode) (code)

## Article

The idea behind this project, is too allow easy direct control over any smart device from a distance. You shoot a laser mounted on your hand at a target, then the connected component turns on.

The idea came when thinking of ideas for a capstone project for an IoT bootcamp. I thought it may be funny to point a finger gun at a light, and when you "shot" it, the light turned on.

So I went with the concept, and designed a great piece of hardware with 5 photoresistors. Inside the code, I wrote a library to read the photoresistors in a similar manner to how OneButton works. With this I was able to create a smart system allowing me to have multiple states and control multiple things!

Whenever I aim my hand laser at the target I can control lights, smart outlets, send keys-bindings to my computer, etc. The possibilities are endless!

![](https://maker.wiznet.io/uploads/2022/03/fritzing_tbwsw71tfs_erLZlFUNZy-300x114.png) ![](https://maker.wiznet.io/uploads/2022/03/fritzing_dkv0fbhlb4_6bUcnjTil2-300x114.png)

---

Source: https://maker.wiznet.io/irina/projects/The-Hand-Mounted-Laser-Controller/