Comparison page

ESP32-S2 vs HLK-M30

Side-by-side selection notes for specs, ecosystem readiness, known issues, and data confidence. This page is generated from structured component fields instead of a hand-written article.

ESP32-S2

Maker and embedded projects needing Wi-Fi 4 connectivity with USB OTG and Security.

HLK-M30

Maker and embedded projects needing Wi-Fi 4 connectivity with Transparent serial and Module.

Specification Matrix

DimensionESP32-S2 HLK-M30

CategoryWiFi MCUsWiFi MCUs

MakerEspressif SystemsHi-Link

CoreSingle-core Xtensa LX7Embedded Wi-Fi MCU

Clock240 MHzVendor module

WirelessWi-Fi 4Wi-Fi 4

Voltage3.3V3.3V

LibrariesArduino, MicroPythonNeeds verification

Price$1.00 - $1.80$1.50 - $3.00

Known Tradeoffs

ESP32-S2

Module naming, flash size, and pin exposure vary by vendor board
English examples and library support should be verified before production use

HLK-M30

Module naming, flash size, and pin exposure vary by vendor board
English examples and library support should be verified before production use

Open Individual Model Pages

ESP32-S2

Espressif Systems

Single-core Wi-Fi MCU with native USB and strong security features but without Bluetooth.

China-madeWiFi MCUs95% confidence

HLK-M30

Hi-Link

Wi-Fi module commonly used for serial transparent transmission and quick IoT connectivity in maker products.

China-madeWiFi MCUs72% confidence