September 30, 2013 AT 7:34 am

Tutorial – Trinket Temperature & Humidity LCD Display @ The Adafruit Learning System

Trinket Trinket Dhtlcd 2

Trinket Img 2189

Tutorial – Trinket Temperature & Humidity LCD Display @ The Adafruit Learning System.

The first thing a microcontroller project must do is communicate, often with us humans. While the Trinket mini microcontroller does not have a serial monitor built in (like the Arduino Uno), it can talk over various protocols including software serial, I2C (two wire), and SPI. Adafruit sells a wide array of I2C devices including a backpack to interface with a number of nice liquid crystal (LCD) displays – perfect as it only requires two of the five Trinket pins.

Monitoring sensors is very common for Internet of Things (IoT) projects. Here we’ll select the popular DHT series of temperature and humidity sensors.

This project can be placed in a very small enclosure and used anywhere environmental monitoring is needed. The code and concepts may be used in a number of your own projects.

Learn more.


Check out all the Circuit Playground Episodes! Our new kid’s show and subscribe!

Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground”Adafruit’s Apps!



1 Comment

  1. This is excellent since I was planning to use one of my Trinkets as a humidor sensor/alarm/controller. I just haven’t gotten to it yet. But this gives me an excellent jump ahead once I get started.

Sorry, the comment form is closed at this time.