In the previous project, we discussed how to wake ESP32 using EXT0. ESP32 supports five power modes: active, modem sleep, light sleep, deep sleep, and hibernation. For battery-powered or Internet-of-Things (IoT) applications, deep sleep mode is particularly useful. In this mode, the ESP32 powers down most components, including the CPU, flash memory, Wi-Fi, Bluetooth, and…
How to use ESP32’s sleep and wake-up modes in MicroPython
In a previous article, we covered sleep modes in ESP8266. ESP32 is another popular Wi-Fi development board from Expressif systems. It’s more feature-rich than ESP8266, but also more power-hungry. The power consumption of ESP32 can reach up to 790 mA when the Wi-Fi and Bluetooth are both operational — nearly double that of ESP8266, which…