Browse through all that’s new here!
NEW PRODUCTS THIS WEEK
Single CR2032 Battery Holder with Three Flashing Modes
This tiny coin cell battery holder is ideal for small portable or wearable projects. It holds one 20mm coin cell (CR2032 is the most popular size) to generate 3V nominal. 20mm coin cells are popular as they are used in keychain lights and remotes and other small topys, so they are easy to get and fairly low cost. And speaking of lights, these battery holder includes three “LED” modes: quick flashing, slower flickering, and static on. Press the button to cycle through the modes. Although designed for LED jewelry, it could be used for other projects that need simple cycling.
Kailh Mechanical Key Switches – Linear Black – 10 pack – Cherry MX
Black Compatible
For crafting your very own custom keyboard, these Kailh Black Linear mechanical key switches are deeee-luxe! With smooth actuation and Cherry MX compatibility, they’re lovely when you want a smooth linear keystroke with a slightly higher operating force than the Reds.
Learn more! Also available in red, white and brown!
Round Semi-Circle Backlight LED – 50mm Diameter
These pretty circles of light are plastic diffused backlights, probably originally used in LCD gauge displays. Normally they’re tucked behind the LCD and shine white light from below. Here, we’ve got the LEDs available individually, and they’re really cool! Each LED is encased in a 2.2mm thick semi-circle of acrylic. The acrylic is a special type that is very good at diffusing light, so even though there are only two white LEDs, it provides near-uniform lighting. The other flat side of the diffuse has a reflector on it so you only get light from the top (otherwise the backlight would lose 1/2 the brightness unnecessarily)
I²CMini is an easy-to-use, open-source tool for controlling I²C devices over USB, 100% compatible with I²CDriver. Its a small friend that will make working with I2C a breeze, especially if they have a Qwiic/Stemma QT or even Grove I2C connector!
Fixed Address NeoPixel LED Fairy Lights – 100 Wired LEDs
These look a lot like our NeoPixel fairy lights here, but have a funky twist. In fact, we’re a little hesitant to call them NeoPixels because while they can be controlled by “NeoPixel” code, they don’t function like NeoPixels. Technically, an NeoPixel is an LED that also acts as a shift register. 24 or 32 bits of brightness data comes in the input pin, and the LED removes it and passes along the rest. This is what lets folks chain as many pixels as they like onto the end: each pixel just grabs the first color data, and passes the rest down like a bucket brigade
These LEDs are not shift registers. In fact, if you look closely, there’s no input and output pin, only one data line. That’s because each LED in this strand is pre-addressed from 0 to 100. Whenever it receives the NeoPixel data, it picks out the n’th color data (matching to its pre-address) and displays that. You cannot change the pre-address, its fixed permanently – or at least, we have no idea how to re-address it.
See more!
Microsoft Machine Learning Kit for Lobe with Raspberry Pi 4 2GB
Machine learning is a transformative tool that’s redefining how we build software—but up until now, it was only accessible to a small group of experts. At Adafruit, we think machine learning should be accessible to everyone, that’s why today we are partnering with Lobe to bring you an easy to use machine learning kit, so you can bring your machine learning ideas to life.
This kit includes all the parts you need, at a discount!
Please Note: Lobe will work fine with the included 2 GB Raspberry Pi 4, but for optimal performance and the best experience we recommend using the 4 GB model.
Adafruit Sensirion SHT31-D – Temperature & Humidity Sensor
Sensirion Temperature/Humidity sensors are some of the finest & highest-accuracy devices you can get. And, finally we have some that have a true I2C interface for easy reading. The SHT31-D sensor has an excellent ±2% relative humidity and ±0.3°C accuracy for most uses. We now use the version with a PTFE filter, it’ll stay clean while still allowing humidity measurements to work
Unlike earlier SHT sensors, this sensor has a true I2C interface, and (bonus!) even with two address options. It also is 3V or 5V compliant, so you can power and communicate with it using just about any microcontroller or microcomputer.
What a cutie pie! Or is it… a QT Py? This diminutive dev board comes with one of our new favorite chip, the RP2040. It’s been made famous in the new Raspberry Pi Pico and our Feather RP2040 and ItsyBitsy RP2040, but what if we wanted something really smol?
A new chip means a new QT Py, and the Raspberry Pi RP2040 is no exception. When we saw this chip we thought “this chip is going to be awesome when we give it the cuuutie QT Py Treatment”, and so we did! This QT Py features the RP2040, and all niceties you know and love about the original QT Py
Adafruit FunHouse – WiFi Home Automation Development Board
Home is where the heart is…it’s also where we keep all our electronic bits. So why not wire it up with sensors and actuators to turn our house into an electronic wonderland. Whether it’s tracking the environmental temperature and humidity in your laundry room, or notifying you when someone is detected in the kitchen, to sensing when a window was left open, or logging when your cat leaves through the pet door, this board is designed to make it way easy to make WiFi-connected home automation projects.
The main processor is the ESP32-S2, which has the advantage of the low cost and power of the ESP32 with the flexibility of CircuitPython support thanks to native USB support. There’s also Arduino support for this chip, and many existing ESP32 projects seem to run as-is. Note this chip does not have BLE support, but for WiFi projects its great. You can use it to connect to IoT services or just the Internet in general, with SSL support and this module has plenty of PSRAM for any kind of data processing.
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