Comparison page

JDY-31 vs SX1278

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.

JDY-31

Projects needing Bluetooth and UART with a commonly available communication part.

SX1278

Projects needing LoRa and Sub-GHz with a commonly available communication part.

Specification Matrix

DimensionJDY-31 SX1278

CategoryCommunicationCommunication

MakerJDYSemtech

CoreNot specifiedNot specified

ClockNot specifiedNot specified

WirelessNot specifiedNot specified

Voltage3.3V3.3V

LibrariesArduinoArduino

Price$1.00 - $3.00$2.00 - $5.00

Known Tradeoffs

JDY-31

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

SX1278

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

Open Individual Model Pages

JDY-31

JDY

Low-cost Bluetooth serial module sold in Chinese marketplaces as an HC-05-class alternative.

China-madeCommunication66% confidence

SX1278

Semtech

Sub-GHz LoRa transceiver IC used in many 433MHz LoRa modules.

China-madeCommunication86% confidence