Comparison page

ATGM336H vs CH343P

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.

ATGM336H

Projects needing GPS and BeiDou with a commonly available communication part.

CH343P

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

Specification Matrix

DimensionATGM336H CH343P

CategoryCommunicationCommunication

MakerZhongke MicroWCH

CoreNot specifiedNot specified

ClockNot specifiedNot specified

WirelessNot specifiedNot specified

Voltage3.3V3.3V

LibrariesArduinoNeeds verification

Price$3.00 - $8.00$0.30 - $0.90

Known Tradeoffs

ATGM336H

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

CH343P

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

Open Individual Model Pages

ATGM336H

Zhongke Micro

China-made GNSS module commonly used as a low-cost GPS receiver in maker projects.

China-madeCommunication74% confidence

CH343P

WCH

Newer WCH USB-to-UART bridge used in compact modern development boards.

China-madeCommunication78% confidence