The ACS712 5A Current Sensor Module measures AC or DC current up to ±5A using the Hall-effect ACS712ELC-05B chip. The current path is isolated from the output, and the module gives an analog voltage proportional to current, so it can be read directly by an Arduino or ESP32 analog pin.
| Chip | ACS712ELC-05B (Hall effect) |
|---|---|
| Current range | ±5A (AC / DC) |
| Sensitivity | 185 mV/A |
| Zero-current output | VCC/2 (≈2.5V) |
| Supply voltage | 5V |
| Isolation | 2.1 kV RMS |
What is the operating voltage?
5V.
How do I read current?
Current (A) = (Vout − 2.5V) / 0.185.
Which ACS712 should I buy?
5A for small loads with best resolution, 20A or 30A for motors and larger loads.
Can I buy the ACS712 5A Current Sensor Module in Kanpur?
Yes – buy online with delivery across India, or pick it up from the iTechBuilders store, Damodar Nagar, Kanpur.
