Understanding HDMI: Cable Types, Pitfalls, and more
HDMI 1.4, 2.1, standard, high speed, ultra-high-speed, how do you keep up with all these new changes and versions? This guide will teach you some of the basics of HDMI, the different connectors involved, and lastly, demonstrate the common pitfalls.
Wirelessly Program a Circuit Playground Bluefruit Using the File Glider App
Use any iOS device to easily transfer files to a Circuit Playground Bluefruit (CPB) using new File Glider app. You can connect from your iOS device then transfer files through the Files app. Once connected, you can create, move, rename and delete files & directories through the Files app. The File Glider app also enables you to write and edit code directly to the CPB!
Circuit Playground Bluefruit BLE Heart Rate Pendant with CircuitPython
Visibly show off your heart rate in the form of a pulsing pendant. A Circuit Playground Bluefruit (CPB) connects to a heart rate monitor to display the heartbeat of the wearer. Using CircuitPython, the CPB blinks with red LEDs to display the heart rate.
No-Code IoT Humidity and Temperature Sensor with Adafruit.io WipperSnapper
In this guide, connect an AHT20 temp + humidity sensor to an ESP32-S2 feather then set up both with AdafruitIO WipperSnapper. From there you’ll create a handy dashboard to view the temperature and humidity data.
No-Code Room Occupancy Status
Sometimes it’s hard to tell when a room is occupied or vacant. At Adafruit we have a popular meeting room - however, sometimes, it’s being used and if you want to have a meeting, you have to go somewhere else or wait. How handy would it be if we had a public dashboard to view if the room is occupied? Using a FunHouse, a PIR sensor and AdafruitIO WipperSnapper, it can happen.
No-Code WipperSnapper Action Counter
Have you ever wanted to count stuff but you can’t always be there to count? Use a FunHouse and an IR (infra-red) sensor to track each time an action is taken. Then when that number reaches a predetermined threshold, IFTTT will send an email notification.
No-Code WipperSnapper Water Detection
Is there a leak in the basement? Did a pipe burst? Is the AC dripping? Before you run down to check, what if instead you received an alert on your phone? Using an Adafruit FunHouse, a water sensor, and WipperSnapper, this can be accomplished in minutes (and with no coding)!
Track a Turtle with WipperSnapper
Cujo the Turtle loves to dance. She also likes to sleep. What if we want to know when she does each of her activities? What about tracking her movement day and night and see for ourselves? Now, what if we could do all of that without writing a single line of code? We can with WipperSnapper and the Adafruit FunHouse!
Understanding microSD and SD cards: speeds, markings and more
“SD” or Secure Digital is a proprietary non-volatile memory card format for use in portable devices. SD card and microSD cards can be used in a variety of everyday devices including cameras, smartphones, drones, video game systems, and more.
MacroPad Summer Olympics Hotkeys
The sheer number of Olympic events is staggering. How do you keep track of them all? The MacroPad is the perfect organizer for checking in on each sport and scrolling through the different Olympics channels.
How to Use micro:bit classroom to Manage Programming Lessons
micro:bit classroom enables educators to have more control and oversight with Programming Lessons. In this guide, we will show how to navigate the platform and walk through an example programming lesson in MakeCode.
How to use the Puppet Module in the Bluefruit Playground App
Using the puppet module in the Bluefruit Playground App, you can create the coolest virtual puppet show ever. Learn how to control the puppet, add a green screen, then record your performance.
The Circuit Playground Bluefruit controls the position, mouth and other features of the puppet over Bluetooth.
How to Build a Testing Jig
Need to quickly test a lot of custom boards? Time to build a testing jig! This guide takes you through the basics of soldering pogo pins straight and adding other necessary testing components to your test jig.
Electronic History of the Day with PyPortal
This PyPortal project shows one notable electronic or science fact every day. Based on what day it is, CircuitPython code grabs JSON data from a database and then prints information about the person associated with that day. Want more info on the person? Use the QR code!
Machine Learning with Marshmallows and Tiny Sorter
This project uses a laptop's built-in camera to identify various cereal and marshmallows. The computer then sorts them based on a model you train. A Circuit Playground Express communicates with the computer to decide when to sort which marshmallow/cereal via a micro servo.
