STM32 vs ESP32: Which One for Which Project?
The most common question in embedded system projects: STM32 or ESP32? As a team that has used both across dozens of projects, we offer a practical comparison to help you decide. Overview Feature STM32 ESP32 Manufacturer STMicroelectronics Espressif Core ARM Cortex-M (M0 – M7) Xtensa LX6/LX7 or RISC-V Wi-Fi/BLE External module required (except STM32WB) Built-in Wi-Fi + BLE Price Wide range ($0.5 – $15+) Economical ($2 – $5) Power Consumption Very low (Stop: <1uA) Medium (Deep sleep: ~10uA) Peripherals Rich (CAN, USB, DAC, 16-bit ADC) Basic (12-bit ADC, SPI, I2C) Ecosystem STM32CubeIDE, HAL, FreeRTOS Arduino, ESP-IDF, PlatformIO When Should You Choose STM32? Low-Power Applications For battery-powered devices that require long life, the STM32L series is unrivaled. Consumption at the microamp level is possible in Stop mode. ...