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 ...

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Ready to beef up your Wi-Fi network? A wireless range extender is a less expensive alternative to a new router. (Some can even turn your router setup into a mesh system.) Here are the top performers ...

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Ready to beef up your Wi-Fi network? A wireless range extender is a less expensive alternative to a new router. (Some can even turn your router setup into a mesh system.) Here are the top performers ...

If your wi-fi router isn't providing a strong and reliable signal into the far reaches of your home, consider investing in a wi-fi mesh system or wi-fi extender. A wi-fi mesh system is an advanced, ...

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We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Adrienne Maxwell Adrienne Maxwell is an editor covering AV gear. Her specialty ...

The PCF8574_LH library provides a simple interface for controlling the PCF8574 I/O expander using the I2C communication protocol. It allows you to read and write values to the PCF8574's registers, ...

What Are the Best Cell Phone Booster Brands? Booster manufacturers must use various techniques to detect the strongest signal from surrounding towers and amplify it without interfering with the ...

static esp_err_t read_input_reg(esp_io_expander_handle_t handle, uint32_t *value); static esp_err_t write_output_reg(esp_io_expander_handle_t handle, uint32_t value ...