Discussion on LPUART Waking Up MCU from STOP Mode

Discussion on LPUART Waking Up MCU from STOP Mode

Introduction In low-power applications, it is sometimes necessary to put the MCU into STOP mode to save power. In some chip architectures, to achieve this, the serial port pins are often configured as general I/O pins with external interrupt mode before entering low-power mode. While this can achieve the desired effect, it inevitably leads to … Read more

Solving ESP32-C3-MINI-1U Wake-up Issues in Sleep Mode

Solving ESP32-C3-MINI-1U Wake-up Issues in Sleep Mode

Qiming Cloud/ 01 Have you ever encountered this? When using the ESP32-C3-MINI-1U module with ESP-IDF version idf5.0.1, there is a probability of failure when waking up from sleep mode, causing the module to hang with no information printed to the serial port. Why is this happening? Qiming Cloud/ 02 What’s going on? The mainboard is … Read more