PaperDIY Assembly Kit · intermediaire · Configurez les modes de faible consommation pour prolonger la durée de vie de la batterie de 140mAh.
Analyze current consumption using a multimeter connected in series between the power supply and the kit. Note consumption in active and standby modes.
Integrate the M5PM1.h library to control the power management chip. Disable unused peripherals (WiFi, BLE, display) before sleeping.
Configure the ESP32-S3 Deep Sleep. Use esp_sleep_enable_timer_wakeup() to set a wake-up time, for example, every 10 minutes for a display update.
Manage the e-paper screen state: before sleeping, ensure the screen is updated and in a static state to avoid holding current consumption.
Implement an external wake-up source if necessary, such as a push button connected to a wake-up GPIO, to interact with the user without waiting for the timer.
Test stability: verify that the kit wakes up correctly, executes the task, then returns to Deep Sleep. Monitor battery discharge over 24 hours.
Deepen your knowledge: Explore using the 512KB SRAM to save critical state before sleep, allowing quick resumption without full reset.