ldr-tweet

Sends a tweet if it's too dark or lit on the given credentials using photoresistor. Green and red leds are also there to signify the final status of the tweet.

Circuit Board

Components

Following are the required components for this project.

• Breadboard
• Male to Male Jumper Wires
• Arduino UNO/Genuino
• Photoresistor
• 1k Resistor
• Button

The schematic diagram of the circuit is as follows.

Setting up the project

After cloning this repository run npm install in the root of the directory to install the required packages.

In order to run this project, you need to have the twitter keys first. Go to apps.twitter.com, follow the procedure to create the new app.

Create a keys.js in the root directory, copy and paste the following code var ENV = process.env

ENV["TWITTER_CONSUMER_KEY"] = ""
ENV["TWITTER_CONSUMER_SECRET"] = ""
ENV["TWITTER_ACCESS_TOKEN_KEY"] = ""
ENV["TWITTER_ACCESS_TOKEN_SECRET"] = ""

Replace the empty strings with your values.

Now type node index.js to run the project. Try to light up the ldr or make it too dark and enjoy the tweets being sent from your account.

Sample setup

LICENSE

MIT LICENSE. See LICENSE for more details.