ICYMI – Adafruit IoT Monthly Newsletter: Coffee Routine, IoT Cat, ESP32-S2 Feather, and more! #IoT #newsletter

ICYMI (In case you missed it) – the IoT Monthly Newsletter from AdafruitDaily.com went out this morning!

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IoT Projects

Automating a Morning Coffee Routine

Petertree built a coffee maker which is “2x more expensive and messy than the one you can get on Amazon”. – Hackster

Putting a WiFi Router into an iPhone Wall Charger

Ryan Walker is building a “purpose-built router to be used in network attacks and exploits” which fits inside the casing of a standard iPhone wall charger –MachineHum.Medium.com

How to Get an AWS IoT Project Quickly Off the Ground

Demonstrating a model-based AWS IoT development for IoT development using state machines. – EmbeddedArtistry

Integrating a Plant Watering Project into an Existing Home Automation System

Sasa details their experience integrating a watering system into a scratch-built home automation system. – HackADay

Extracting Data from a Smart Scale

Kevin Norman extracted his data from a WiFi scale’s mobile app using optical character recognition (OCR) – HackADay

Pogo Pin Lock and Key with MQTT

Cheats built “a kind of lock and key that acts sorta like a USB hardware token”. Once the key is placed into the “lock”, an MQTT message is sent from the ESP8266 to perform an “unlock” action on the internet. – Hackster

Connecting a Robot Cat to the Internet

Charlyn Gonda developed a LinkedIn Learning IoT course for beginners which teaches “how to use CircuitPython—a version of Python specifically for microcontrollers—to program a robot cat that reacts to events while connected to the internet.” – LinkedIn Learning

IoT News and More!

Best practices for debugging Zephyr-based IoT applications

Best practices for debugging IoT projects that run on the Zephyr real-time operating system. – Embedded

Building an IoT Product — The Product(ion) Feedback Loop

A blog post from the perspective of an engineer about producing a physical IoT product using different Electronic Manufacturing Services. – Medium

ESP32-H2 Officially Recognized as a “Thread-Certified Component” and a “Zigbee-Compliant Platform”

The upcoming ESP32-H2 module is ZigBee compliant and supports the upcoming Matter protocol. – Espressif

No battery? That’s no problem for the future Internet of Things

Josiah Hester is producing batteryless devices for the future of IoT. One of the devices is a Gameboy powered by button presses and the sun. – Adafruit Blog

Adafruit ESP32-S2 Feather

What’s Feather-shaped and has an ESP32-S2 WiFi module? What has a STEMMA QT connector for I2C devices? What has your favorite Espressif WiFi microcontroller and lots of Flash and RAM memory for your next IoT project? What will make your next IoT project flyyyyy? That’s right – it’s the new Adafruit ESP32-S2 Feather! We also made one with a built-in BME280 temperature/humidity/pressure sensorAdafruit Store

NEW IOT HARDWARE: ESP32-S3 Box

The ESP32-S3-BOX provides a platform for developing the control of home appliances using Voice Assistance + touch screen controller, sensor, infrared controller, and intelligent Wi-Fi gateway. – Adafruit Store

NEW IOT HARDWARE: ESP32-S3-WROOM-1 Dev Boards

The ESP32-S3-DevKitC-1 is an entry-level development board equipped with ESP32-S3-WROOM-1, a general-purpose Wi-Fi + Bluetooth LE MCU module that integrates complete Wi-Fi and Bluetooth LE functions. – Adafruit Store

Adafruit.io, the IoT Platform for Everyone

Sign up for our IoT Platform, Adafruit IO (for free!) by clicking this link. 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.


As 2022 starts, let’s take some time to share our goals for CircuitPython in 2022. Just like past years (full summary 2019, 2020, and 2021), we’d like everyone in the CircuitPython community to contribute by posting their thoughts to some public place on the Internet. Here are a few ways to post: a video on YouTub, a post on the CircuitPython forum, a blog post on your site, a series of Tweets, a Gist on GitHub. We want to hear from you. When you post, please add #CircuitPython2022 and email circuitpython2022@adafruit.com to let us know about your post so we can blog it up here.

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, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, 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.

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CircuitPython – The easiest way to program microcontrollers – CircuitPython.org


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Python for Microcontrollers — Python on Microcontrollers Newsletter: Raspberry Pi Pico turns one and more! #Python #CircuitPython @micropython @ThePSF

Adafruit IoT Monthly — 2021 in Recap!

Microsoft MakeCode — MakeCode Thank You!

EYE on NPI — Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey

New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — NEW PRODUCT – ESP32­-S3­-DevKitC-1 – ESP32-S3-WROOM-2 – 32MB Flash 8MB PSRAM

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