Comparison page

CH340G vs WH-GM5

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.

CH340G

Projects needing USB UART and Low cost with a commonly available communication part.

WH-GM5

Projects needing 4G Cat.1 and LuatOS with a commonly available communication part.

Specification Matrix

DimensionCH340G WH-GM5

CategoryCommunicationCommunication

MakerWCHLuatOS / OpenLuat

CoreNot specifiedNot specified

ClockNot specifiedNot specified

WirelessNot specifiedNot specified

Voltage3.3V3.3V

LibrariesNeeds verificationNeeds verification

Price$0.20 - $0.60$6.00 - $15.00

Known Tradeoffs

CH340G

Breakout boards may use different pin labels or regulator choices
Clone modules can differ from the original datasheet part

WH-GM5

Breakout boards may use different pin labels or regulator choices
Clone modules can differ from the original datasheet part

Open Individual Model Pages

CH340G

WCH

USB-to-UART bridge chip used on many low-cost Arduino-compatible and ESP development boards.

China-madeCommunication86% confidence

WH-GM5

LuatOS / OpenLuat

OpenLuat 4G Cat.1 module used in Chinese maker and IoT telemetry projects.

China-madeCommunication72% confidence