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Adafruit NeoKey 1x4 QT I2C Breakout

Adafruit NeoKey 1x4 QT I2C breakout fits four Cherry MX or compatible switches and make it easy to use with a breadboard/perfboard or with a STEMMA QT (Qwiic) connector for instant I2C connectivity on any platform. A microcontroller is required to drive this board, it isn't stand-alone. Keys & keycaps are not included: you can use any MX-compatible switch.

Product Id: 12552

Your Price: €15.60
Shipping Weight: 10 g
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Quantity On Hand:4

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Cherry MX compatible clear keycap with no inscription.
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The ESP32-S3 has arrived in QT Py format - with dual 240 MHz cores, 4 MB Flash, 2 MB PSRAM, WiFi/BLE support and native USB, this QT Py is great for powering your IoT projects. It has NeoPixel LED and Stemma QT/Qwiic/EasyC for easy I2C sensor connection. Program it using CircuitPython or Arduino IDE.
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This miniature board is pinout and shape compatible with Seeed Xiao and adds QT/Qwiic/easyC I2C connector. It's based on ATSAMD21E18 32-bit Cortex M0+ - 48 MHz 32-bit processor with 256KB Flash and 32 KB RAM, and has 11 GPIO pins and USB-C type connector. It runs Arduino code and CircuitPython.
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This board has 18 total 'I/O' pins, 10 columns and 8 rows, which can be arranged as a matrix of buttons for a total of 80 switches. Or you can use any subset as individual GPIO input or outputs. The nicest part of the keypad driver is that it has a 10-element event FIFO queue. Since it's I2C (StemmaQT/Qwiic/EasyC compatible) it's very easy to use with any microcontroller or computer.
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