Comparison page
DS18B20 vs PIR HC-SR501
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.
DS18B20
Projects needing Temperature and 1-Wire with a commonly available sensors part.
PIR HC-SR501
Projects needing Motion and PIR with a commonly available sensors part.
Specification Matrix
CategorySensorsSensors
MakerAnalog DevicesGeneric
CoreNot specifiedNot specified
ClockNot specifiedNot specified
WirelessNot specifiedNot specified
Voltage3.3V3.3V
LibrariesArduino, MicroPythonArduino, MicroPython
Price$0.80 - $3.00$0.80 - $3.00
Known Tradeoffs
DS18B20
- Breakout boards may use different pin labels or regulator choices
- Clone modules can differ from the original datasheet part
PIR HC-SR501
- Breakout boards may use different pin labels or regulator choices
- Clone modules can differ from the original datasheet part