STM32 vs ESP32

STM32 excels in deterministic real-time control, peripheral richness (CAN FD, HRTIM, high-res ADCs), and industrial temp range (-40 to 125 C). ESP32 integrates Wi-Fi/BLE natively at lower cost for consumer apps. STM32 parts carry 10-15 year availability vs ESP32 5-8 years.

Key Takeaways

• Real-world engineering considerations from 10+ years of STM32 development
• Practical tradeoffs between performance, cost, and time-to-market
• Direct experience across industrial, energy, and IoT deployments

Frequently Asked Questions

Can STM32 do Wi-Fi?

Not natively. STM32WB series has BLE/LoRa. Wi-Fi needs external module. If Wi-Fi is a must, ESP32 wins.

Better for battery devices?

For <5% duty cycles, ESP32 deep sleep at 5 uA is competitive. STM32U5 standby at 300 nA is better for pure processing.

Choosing between STM32 and ESP32? Let’s discuss. Get in touch with our engineering team for a free consultation.

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