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Adafruit IOT Monthly – May 2019

IO Update: Features, Stats, and More for Adafruit IO

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IO Stats

Adafruit.io has over 15,000+ active users in the last 30 days and over 700+ Adafruit IO Plus subscribers. Sign up for Adafruit IO (for free!) by clicking this link.

Ready to upgrade? Click here to read more about Adafruit IO+, our subscription-based service. We don’t have investors and we’re not going to sell your data. When you sign up for Adafruit IO+, you’re supporting the same Adafruit Industries whose hardware and software you already know and love. You help make sure we’re not going anywhere by letting us know we’re on the right track.

Adafruit IO on Reddit

Adafruit IO now has a dedicated subreddit! Subscribe over at /r/AdafruitIO to add the latest Adafruit IO news to your Reddit Front Page.

Awesome Adafruit IO

Awesome Adafruit IO is a curated list of awesome Adafruit IO guides, videos, libraries, frameworks, software and resources. Inspired by the Awesome lists. It will be updated by the team & community – we’re looking for contributors!

Stop by and check it out awesome-circuitpython and keep reading!

Adafruit IO Plus Plan Upgrades Are Here!

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One of the most consistent requests we’ve had since we launched IO Plus (IO+) was for a way to raise the IO+ account limits even further.

We’re happy to announce that with an Adafruit IO+ subscription, you can now add data rate and storage time limit upgrades!

Library Update: Adafruit IO Arduino

If you have a shiny new piece of Adafruit WiFi AirLift hardware and want to use it with Arduino – you’re in luck! The Adafruit IO Arduino library has been updated to v3.1.0, including an update for using AirLift boards (such as the PyPortal or Metro M4 WiFi Lite) or breakouts.

Grab the new release from the Arduino Library Manager or download it from the Adafruit GitHub.

New IOT Hardware from Adafruit

Adafruit’s new WiFi boards have arrived. Both of these boards come with AirLift – our witty name for the ESP32 co-processor – and are compatible with both Arduino and CircuitPython. All AirLift boards can also connect to Adafruit IO.

Adafruit AirLift – ESP32 WiFi Co-Processor Breakout Board

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Give your plain ol’ microcontroller project a lift with the Adafruit AirLift – a breakout board that lets you use the powerful ESP32 as a WiFi co-processor. You probably have your favorite microcontroller (like the ATmega328 or ATSAMD51), awesome peripherals and lots of libraries. But it doesn’t have WiFi built in! So lets give that chip a best friend, the ESP32. This chip can handle all the heavy lifting of connecting to a WiFi network and transferring data from a site, even if it’s using the latest TLS/SSL encryption (it has the needed root certificates pre-burned in). This breakout includes a crypto chip, too!

Want to pick one up? Visit the Adafruit Store!

Adafruit Metro M4 Express AirLift (WiFi) – Lite

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Give your next project a lift with AirLift – our witty name for the ESP32 co-processor that graces this Metro M4. You already know about the Adafruit Metro M4 featuring the Microchip ATSAMD51, with it’s 120MHz Cortex M4 with floating point support. With a train-load of FLASH and RAM, your code will be fast and roomy. And what better way to improve it than to add wireless? Now cooked in directly on board, you get a certified WiFi module that can handle all your TLS and socket needs, it even has root certificates pre-loaded. Since this is a lite version of the AirLift module, it has a 8MB flash and no crpyto chip.

Want to pick one up? Visit the Adafruit Store!

Powered by Adafruit IO: Projects from the Community

Low Cost Internet Enabled Voltage and Current Logger

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Darian Johnson “needed a low cost way to measure current requirements and battery drain over time” for one of his wearable projects. He also had a “TON of Adafruit Feathers and FeatherWings, so [he] decided to use components [he] already had, plus an Adafruit INA219 FeatherWing to build a voltage and current logger which logs to SD card and Adafruit IO

Smart HDMI Switcher with Adafruit IO and IFTT

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Scriptmonkey_ on twitter did a bit of hacking this past Easter weekend connecting their HDMI switcher to the internet. To avoid the remotes piling up on their coffee table, or getting up from their couch, they used an ESP8266 connected to an Amazon Alexa over If-This-Then-That to voice-control their TV’s inputs.

Adafruit IO Raspberry Pi Cloud Camera Tutorial

Interested in sending different types of data to Adafruit IO? IOTDesignPro published a very detailed tutorial for streaming the camera’s images (as data) from a Raspberry Pi using MJPG-streamer over the internet to an Adafruit IO Dashboard.

Mini IOT Display with PushBullet Notifications

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Labsud built a Mini Connected Display to show messages received from an Adafruit IO Feed using a EspressIf WeMos D1 Mini and a ST7789 TFT display. They also set up IFTTT to display notifications from their smartphone to their display with Adafruit IO’s IFTTT integration.

Working on an Adafruit IO Project? Tell us about it!

Are you working on a project which uses Adafruit IO? Add the #adafruitio hashtag to your tweets, join our Discord channel (http://adafru.it/discord, #help-with-adafruit-io), or join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

New Adafruit Learning System Guides

Have you heard about making, cosplay and electronics, but don’t know where to start? Visit the Adafruit Learning System for over 1700 tutorials for electronics projects, ideas and techniques! We’ve selected a few of our favorite internet-of-things-based guides from the learning system:

ePaper FeatherWing Quote Display

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Build this quote display using the Adafruit HUZZAH32 (ESP32) Feather and ePaper FeatherWing. Add a LiPo battery and you have a portable quote display.

Read the guide here…

Data Logging IOT Weight Scale

How many grams of coffee did I add to my pour-over? Is the bag of cat food empty? Did I remember to water the plant? What’s the weight of these screws in my workshop? To answer these questions (and more), you’re going to build an internet-enabled scale to track weight data over a period of time.

Read the guide here…

PyPortal Tides Viewer

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Surfs up! Or is it? This guide will show how you can use an Adafruit PyPortal smart display to easily fetch tide information from the Internet and display it.

Read the guide here…

PyPortal Philips Hue Controller

In this Learn Guide, you’ll be building a touchscreen lighting controller with an Adafruit PyPortal to control a light, or groups of lights, connected to a Philips Hue bridge.

Read the guide here…

PyPortal Weather Station

Harness the power of nature with your PyPortal by building an internet-connected Weather Station!

Read the guide here…

Adafruit IO Basics: AirLift

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If you want to the best way of bringing your project online – combine Adafruit IO and AirLift! Our ESP32-based AirLift boards and breakouts are the newest way to connect your project to Adafruit IO, our internet-of-things service for everyone!

Read the guide here…

Multi-Sensor IoT Environmental Sensor Box With CircuitPython

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This guide will walk you through making an environmental monitoring device with GPS, Temperature, Humidity, Barometric Pressure, and Air Quality sensors, all updating to the cloud. Once build, this project takes readings occasionally and sends them to Adafruit IO, stamped with time and location. All that is required is an AC outlet and a WiFi network.

Read the guide here…

Around the Internet


Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

Join 12,000+ makers on Adafruit’s Discord channels and be part of the community! http://adafru.it/discord

CircuitPython 2019!

Have an amazing project to share? The Electronics Show and Tell with Google Hangouts On-Air is every Wednesday at 7:30pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.

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

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