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KATTNI
14 GUIDES | 413 PAGES | 3 FEATURED | 1 POPULAR
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AM2315 - Encased I2C Temperature/Humidity Sensor
An I2C-interface temperature & humidity sensor in a nice enclosed style!
by Kattni Rembor
This sensor contains a thermistor temperature sensor and a capacitive humidity sensor. A small microcontroller inside does the readings and provides a simple I2C interface for reading the finished & calibrated output data. This guide will cover how to use this sensor, complete with wiring diagrams and code examples. Check it out!
Zombie Tag Game with Circuit Playground Express
Play infrared zombie tag with Circuit Playground Express and CircuitPython or MakeCode!
by Kattni Rembor
You're a human! Right? For now anyway... There's a red pulsing in the distance... NO! A ZOMBIE! You're losing health, but what's this? A white pulsing from around a corner, a healer! You'll stay human for a little longer... We've written up a fun game for you to play with Circuit Playground Express and CircuitPython or MakeCode. Hopefully you'll be a human long enough to check out this guide!
Infrared Receive and Transmit with Circuit Playground Express
Send and receive messages using IR with your Circuit Playground Express!
by Kattni Rembor
Circuit Playground Express has the ability to transmit and receive IR signals. You can use CircuitPython to send and receive messages using IR. This guide covers the basics of Circuit Playground Express IR and shows you how to use CircuitPython to communicate between two Circuit Playground Expresses!
Contribute to CircuitPython with Git and GitHub
From fork to merge, this guide covers all the steps necessary for a successful Git and GitHub workflow.
by Kattni Rembor
You already have Git setup, and you have a GitHub account. You want to contribute to an open source project like CircuitPython, but you're not sure where to start. This guide walks through the steps from forking your first repo to your GitHub account, to cloning it locally, creating a working branch, making a commit, pushing your code to your fork, creating a PR, and both receiving and giving a review. You'll learn good practices and tips and tricks, and before you know it, you'll be a pro contributor. Pick a project, find an issue, and let's get started!
Rotary Encoder in CircuitPython
How to use a rotary encoder in your CircuitPython projects!
by Kattni Rembor
Learn how to use a rotary encoder with CircuitPython! Encoders are great when a potentiometer is the wrong fit. You can programmatically make this knob do your bidding.
FEATURED
CircuitPython Made Easy on Circuit Playground Express
Get started with just a few lines of code!
by Kattni Rembor
New to CircuitPython? Looking for an easy way to get started? We've written a library for the Circuit Playground Express that makes it super simple to begin using all the sensors, switches and lights. This guide will show you all the features of this library and how to use each one. Let's get coding!
Gemma LightTouch
It takes a light touch to light up your Gemma!
by Kattni Rembor
You just got this amazing little board. Now, how about a quick little project you can do with only a few minutes of your time? Sounds great! This guide provides two different ways to interact with your Gemma using capacitive touch and the built-in LED. Quick, simple, and super fun!
Data Logging with Feather and CircuitPython
It's log, it's log, it's big, it's data, it's good!
by Kattni Rembor
This project uses the Feather M0 Express, the Adalogger Featherwing and the AM2320 Temperature and Humidity sensor to gather data from the sensor and save it to the SD card on the Adalogger. You'll learn how to record data, and then take that data, import it into a spreadsheet and turn it into an awesome graph!
FEATURED
Sensor Plotting with Mu and CircuitPython
Plot all the things!
by Kattni Rembor
Mu is an amazing editor that works with CircuitPython and compatible boards. You can connect to the serial REPL right inside the editor. It also includes a plotter the works with your code to give you a live visual graph of your data! This guide will show you different ways to use the plotter with different sensors. It's time to plot!
CircuitPython Essentials
The next step in learning CircuitPython.
by Kattni Rembor
You've already gotten started with CircuitPython. What's next? CircuitPython Essentials! This guide provides examples all of the core modules and some of the common libraries found in CircuitPython and how they're used. You'll be able to use any board designed for CircuitPython and learn about the different concepts included in the language. It's time to take the next step!
Hacking Ikea Lamps with Circuit Playground Express
Use CircuitPython to turn your Ikea (or any!) lamps into interactive colorful fun!
by Kattni Rembor
This guide will show you how to use CircuitPython and your Circuit Playground Express to make an interactive lamp, by using movement to change color settings and modes, or changing it up from across the room with an IR remote. You'll learn how to use different code concepts to make this happen. Lamp it up and have fun!
FEATURED
Welcome to CircuitPython!
New to CircuitPython? This is the place to start.
by Kattni Rembor
You may have seen CircuitPython mentioned on the Adafruit site or on Discord. What is it? Why would you use it? Once you have a CircuitPython board, what do you do next? This guide has you covered from the moment you plug in your new board. Check it out!
Welcome to the Adafruit CircuitPython community!
The best part of CircuitPython is the community that comes with it.
by Kattni Rembor
This guide will introduce you to the CircuitPython community and everything that comes with it. You'll learn about where to get your questions answered, provide help to others and contribute in a variety of ways. Whether you're a beginning just starting out or a seasoned programmer, you'll find there's something for everyone. See you soon!
Circuit Playground Express: Piano in the Key of Lime
Create a full scale tone piano using CircuitPython, capacitive touch and some cute little fruits.
by Kattni Rembor
This guide will use the capacitive touch pads on the Circuit Playground Express and the capacitive properties of fruit to create a full scale tone piano. We will write the code using CircuitPython to use each of the touch pads to light up the Neopixels in a different color and play a different tone through the onboard speaker.