Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Sensor Type | Hall Effect Current Sensor |
| Available Ranges | 5A, 20A, 30A |
| Operating Voltage | 5V DC |
| Output Sensitivity (5A) | 185 mV/A |
| Output Sensitivity (20A) | 100 mV/A |
| Output Sensitivity (30A) | 66 mV/A |
| Bandwidth | 80 kHz |
| Response Time | 5 µs |
| Isolation Voltage | 2.1 kV RMS |
| Package Type | Breakout Board with Header Pins |
Anonymous
Mar 28, 2026
Rating: 5/5
Ideal for solar monitoring
I am using the 20A version to monitor my small solar panel output. It handles the current spikes well and the isolation gives me peace of mind.
Anonymous
Mar 17, 2026
Rating: 5/5
Compact and effective
Very compact design fits easily into tight enclosures. The 5A model is surprisingly sensitive and great for low-power consumption tracking.
Anonymous
Mar 11, 2026
Rating: 4/5
Good value but needs calibration
The sensor is accurate enough for general use, but you definitely need to calibrate it against a known load for precise measurements. The build quality is solid.
Anonymous
Mar 10, 2026
Rating: 5/5
Perfect for Arduino projects
This module works flawlessly with my Arduino Uno. The calibration was straightforward, and the readings are stable. Great for monitoring battery discharge rates.
Anonymous
Mar 09, 2026
Rating: 5/5
Reliable for student projects
Bought ten of these for our robotics club. They are durable and easy to solder. Students found the documentation online very helpful for integration.
Anonymous
Mar 07, 2026
Rating: 3/5
Works but noisy output
The sensor functions as described, but I noticed some noise in the output signal. I had to add a capacitor to smooth the reading. Otherwise, it's okay for the price.
Q: Does the 30A version overheat at continuous 25A load?
A: The sensor is rated for up to 30A, but running near the maximum limit continuously may cause heating. We recommend ensuring adequate airflow or using a heatsink for loads above 20A.
Q: Can this module measure AC current as well as DC?
A: Yes, the ACS712 sensor can measure both AC and DC current. The output voltage will vary around the VCC/2 baseline depending on the direction and type of current.
Q: Is there a library available for Raspberry Pi?
A: Since this is an analog sensor, it does not connect directly to the digital GPIO of a Raspberry Pi without an ADC (like MCP3008). Once connected via ADC, standard Python libraries for that ADC can be used to read the values.
Q: What is the accuracy tolerance of this sensor?
A: The typical total error is around ±1.5% to ±2% at room temperature, but this can vary slightly based on the specific range (5A, 20A, or 30A) and external electromagnetic interference.
Q: What is the exact pinout for connecting this to an ESP32?
A: Connect the VCC pin to 5V (or 3.3V if your specific board supports it, though 5V is recommended for stability), GND to GND, and the OUT pin to any analog GPIO pin on the ESP32.
Kimberly-Clark 41412 WYPALL X70 All-Purpose Wipes - Oil/Absorbent/Solvent Resistant Shop Towels
$110.00
EMG 60/85/81/81TW/89/89R Active Dual-Coil Guitar Pickups - Cuttable and Ready to Install
$910.00
Retainer Storage Case with Mirror for Cleaning and Soaking Portable Orthodontic Aligner Box
$24.93
Suitable for 195/55R15 & 195/60R15 Used Tires Year-Round Supply Low Price Guaranteed Quality
$80.00
Sink Drain Rack Corner Hanging Basket - Kitchen Sponge and Cloth Organizer, Multi-Function Home Storage Solution
$13.73
Magnetic Refrigerator Side Storage Rack - No-Drill Wall Organizer for Spices and Utensils
$9.10
Multi-Function Car Tire Stone Removal Hook Tool for Picking and Digging Out Debris
$7.35
Suction Cup Sink Strainer - Disposable Kitchen Drain Filter for Food Scraps and Waste
$14.30
Kimberly-Clark Wiper Paper, Industrial Cleaning Wipes for Oil and Grease, Factory & Laboratory Use
$963.52
Loose Gold Rutilated Quartz Beads, Donghai Agate, Chalcedony, Jade, Cat's Eye, Titanium Crystal, Aquamarine, White and Yellow Crystal Single Beads for Bracelets
$8.42
Faucet Drain Mat, Non-Slip Countertop Pad for Kitchen and Bathroom, Splash-Proof Sink Organizer, Thickened Mold-Resistant Silicone Mat
$3.78
New Pirelli Tire 255/40R20 101W AO PZERO PZ4 with Silent Cotton Original Fit for Audi A6L
$1,358.00
Oriental Pearl Dual Porcelain Jar Gift Set: Green Tea, Black Tea, Jin Jun Mei, Pu'erh Loose Leaf Tea in Porcelain Jars
$149.00
Purified Water Bucket Stand Inverted Water Dispenser Pump Simple Mineral Water Drinking Machine Press Pump
$10.80
New Children's Gouache Paint Brushes DIY Hand-Painted Graffiti Art Class Watercolor Acrylic Paint Brushes Bristle Round Tip Brush
$6.41
Natural Clear Quartz Fully Clean Untreated Faceted Round Rice Beads - For Women's Bracelets, Spacer Beads, and DIY Crafts
$6.63
Sponge Brushes for Kids' Crafts and Creative Painting - Student Art Stamping Tools, DIY Sponge Paintbrushes
$13.86
Jiuchenggong Liquan Ming Tang Dynasty Ouyang Xun Yao Mengqi Copybook, Regular Script Brush Calligraphy Workbook, 3 Volumes, 188 Pages
$17.90
Shaped Watercolor Paper Ticket Stubs - Blank Postage Stamp Bookmarks with Serrated Edges, Thickened 300g Premium Cotton Pulp, Fine Texture for Art Hand Painting, Easy Blending, High Absorbency, Wrinkle-Resistant - Perfect for Postcards and Creative Cards
$9.85
Naitong Automatic Retractable Air Hose Reel with PU Braided Hose for Pneumatic Tools and Car Detailing
$119.00
Premium Wall-Mounted Aromatherapy Empty Bottle – 100ML Plastic Square Diffuser Bottle with Wall-Mount Adhesive Sticker
$2.98
Leyingfang Floating Pen for Kids' Water Drawing, Colorful Water-Soluble Suspended Markers, Erasable Watercolor Pens
$13.80
Loose Rose Quartz Beads, Donghai Agate, Chalcedony, Jadeite, and Madagascar Pink Crystal for DIY Jewelry Making
$6.72
Expandable Stainless Steel Sink Rack, Multi-Function Kitchen Drain Board for Fruits, Vegetables, and Utensils
$14.90
Transparent Retainer Case Aligner Storage Box Portable Carry-On Squeeze Bag Orthodontic Appliance Rubber Band Cleaning Box
$18.50
Transparent Data Cable Organizer Bag for Travel - Portable Multi-Use Visible Storage for Digital Chargers and Cable Management
$7.36
Finished Seal Calligraphy Finished Stone Stamp Sellos Chines
$108.58
Chunfei Grocery Store Commuter Hard Fork Low-Beam Mountain Bike for Urban Roads, Suburbs, School, and Outings
$2,247.00
6-Cavity Large Square French Flower DIY Soap Silicone Mold for Essential Oil and Milk Soap
$4.93
Home Balcony Vegetable Planter - Self-Watering Plastic Pot for Strawberries and Succulents
$28.00
![[Youxin Electronics] GP2Y0E03 Infrared Distance Sensor Module 4-50cm Range](https://www.gosteppe.com/cache/medium/product/74667/legacy-main-4da8cadc5fc82afe91b124e3.webp)
![[Trial Pack] Xianlang Complete Cat Treat Sticks Meal Packs Main Course Cans Freeze-Dried Cat Food Sample Snacks Gift Set](https://www.gosteppe.com/cache/medium/product/208273/legacy-main-9ec245ebf781f65a434ba854.webp)
