The board in this article is not a dedicated board limited to a specific communication standard. The basic policy is to first build a stable 8-input/8-output I/O board using the ESP32-C6 + MCP23017, ...

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IO Abstraction library fully supports the MCP23017 16-bit IO expander chips on Arduino and mbed. It requires only two pins (three for interrupt mode) SDA, SCL, and optionally INT. Our driver provides ...

The MCP23017, a 16-bit I2C GPIO expander, has always been a tasty chip. With 16 GPIOs addressable over I2C, proper push/pull outputs, software-enabled pull-ups, eight addresses, maskable interrupts ...

Stepper motors use a cogged wheel and electromagnets to rotate the wheel one ‘step’ at a time. Each HIGH pulse sent to the A4988 stepper driver energises the coil, attracting the teeth closest to the ...

This page features a curated collection of Arduino Uno projects designed specifically for beginners and intermediate learners. Arduino Uno is the most widely used board for learning electronics, ...

"Matter" is spreading as a common standard for smart home devices. Supporting Matter makes it easier to handle devices from multiple smart home environments, such as Apple Home, Google Home, Amazon ...