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Adafruit has launched a brand new general-purpose enter/output (GPIO) expander, primarily based on the Microchip MCP23017 — whereas teasing a shiny new Qt Py, constructed round Nordic’s nRF52840.
“We’ve gotten a number of requests for a MCP23017 breakout and we’ve all the time sorta been like ‘ehh why not simply use the DIP chip?’,” Adafruit’s Phillip Torrone explains of the considering behind the corporate’s newest board launch, “however with STEMMA QT we might see the use case for a plug and play model that comes with all of the passives on board.”
Adafruit’s newest product is a 16-pin GPIO expander for the STEMMA QT ecosystem. (📷: Adafruit)
That is precisely what its new breakout board is: A compact Microchip MCP23017 and every thing required to make it go, together with unpopulated breadboard-friendly pin headers and a pair of STEMMA QT connectors for addressing the system over I2C.
The breakout presents 16 general-purpose enter/output (GPIO) pins, every able to driving as much as 25mA as an output; when configured as an enter, all 16 pins have elective inside pull-up resistors. The system additionally boasts three tackle pins, permitting as much as eight boards on a single I2C bus — for, Adafruit factors out, a complete of 128 GPIO pins.
On the identical time, Adafruit has proven off one other board, which goes via the design part: The QT Py Bluefruit. “Now we’ve acquired the QT Py SAMD21, RP2040, and ESP32-S2 designed and fabricated,” Torrone explains, “we’ll observe up with an nRF52840 model!”
The corporate can also be engaged on a brand new QT Py, constructed across the nRF52840 SoC. (📷: Adafruit)
Designed in the identical compact footprint as the opposite QT Py fashions talked about, the QT Py Bluefruit is constructed across the Nordic nRF52840 — which means it comes with a 32-bit Arm Cortex-M4F microcontroller operating at as much as 64MHz, 256kB of RAM, and 1MB of on-board flash, plus a multi-protocol radio with Bluetooth 5.2, Bluetooth Low Vitality, Bluetooth Mesh, Close to-Subject Communication (NFC), and 802.15.4 with help for Thread and Zigbee.
The MCP23017 I2C GPIO Expander Breakout is accessible on the Adafruit retailer now at $5.95 earlier than quantity reductions; extra info on the upcoming QT Py Bluefruit is accessible on the corporate weblog, however it has but to share pricing and availability.
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