Comparison page

ACS712 vs DHT22

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.

ACS712

Projects needing Current and Hall effect with a commonly available sensors part.

DHT22

Projects needing Temperature and Humidity with a commonly available sensors part.

Specification Matrix

DimensionACS712 DHT22

CategorySensorsSensors

MakerAllegro MicroSystemsAosong

CoreNot specifiedNot specified

ClockNot specifiedNot specified

WirelessNot specifiedNot specified

Voltage3.3V3.3V

LibrariesArduinoArduino, MicroPython

Price$1.00 - $3.00$1.50 - $3.50

Known Tradeoffs

ACS712

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

DHT22

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

Open Individual Model Pages

ACS712

Allegro MicroSystems

Hall-effect current sensor module used for AC/DC current measurement projects.

China-madeSensors76% confidence

DHT22

Aosong

Higher-range AM2302 temperature and humidity sensor used where DHT11 accuracy is insufficient.

China-madeSensors80% confidence