Comparison page

PIR HC-SR501 vs QMI8658

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.

PIR HC-SR501

Projects needing Motion and PIR with a commonly available sensors part.

QMI8658

Projects needing China-made and 6-axis IMU with a commonly available sensors part.

Specification Matrix

DimensionPIR HC-SR501 QMI8658

CategorySensorsSensors

MakerGenericQST

CoreNot specifiedNot specified

ClockNot specifiedNot specified

WirelessNot specifiedNot specified

Voltage3.3V3.3V

LibrariesArduino, MicroPythonArduino

Price$0.80 - $3.00$0.80 - $2.00

Known Tradeoffs

PIR HC-SR501

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

QMI8658

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

Open Individual Model Pages

PIR HC-SR501

Generic

Passive infrared motion sensor module used in smart lighting and occupancy detection projects.

China-madeSensors72% confidence

QMI8658

QST

China-made 6-axis IMU frequently found on modern low-cost ESP32 development boards.

China-madeSensors76% confidence