ESP32Cube

This practical guide shows how to connect an MP3-TF-16P (DFPlayer Mini) to ESP32, configure UART playback, monitor BUSY status, and avoid common TF card and power issues in real IoT projects.

This guide explains three high-impact ESP32 GPIO pitfalls, including restricted pins, floating inputs, and unstable reset design, with practical ESP-IDF code and hardware rules you can apply immediately.

Learn how to wire the HDS10 condensation sensor to an ESP32 safely, calculate the expected ADC voltage range, and implement a practical dew detection routine with hysteresis and confirmation logic.

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This article presents an MCU-controlled single-button power switch circuit using a hardware-software hybrid approach. It employs a P-channel MOSFET (V1) as the main power switch, an N-channel MOSFET (V2) with MCU GPIO for state latching, and two diodes (D1, D2) for power-on control and shutdown detection. The circuit features simple structure, minimal components, low cost, and remote shutdown capability, suitable for 3.3V or 5V portable electronics.

A complete guide to the L298N DC motor driver module, covering pin descriptions, power supply configurations, speed control with PWM, and wiring examples for use with Arduino or ESP32.

This guide provides instructions for flashing the Xiaozhi AI terminal firmware to your development board.

This guide provides instructions for flashing the Xiaozhi AI terminal firmware to your development board.