Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Model Number | ACS712 |
| 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 |
| Interface | Analog Output |
Anonymous
Mar 26, 2026
Rating: 5/5
Bulk purchase success
Ordered ten units for our makerspace workshop. All of them worked out of the box. Students found them easy to wire up and start coding immediately. Will buy again.
Anonymous
Mar 23, 2026
Rating: 5/5
Perfect for Arduino Projects
This sensor module works flawlessly with my Arduino Uno. The readings are stable and the calibration was straightforward using the provided library examples. Great value for the price.
Anonymous
Mar 12, 2026
Rating: 5/5
Compact and Reliable
I used the 20A version for a robotic arm motor driver. It fits perfectly in tight spaces and provides real-time current feedback without any lag. Highly recommended for robotics applications.
Anonymous
Mar 12, 2026
Rating: 5/5
Essential for Solar Monitoring
Using this to monitor the output of my small solar panel setup. The isolation provided by the Hall effect technology gives me peace of mind. Easy to integrate with ESP32.
Anonymous
Mar 11, 2026
Rating: 4/5
Great for learning
Bought this for my university embedded systems course. It helped me understand how current sensing works practically. The documentation online is plentiful which helped a lot.
Anonymous
Mar 08, 2026
Rating: 4/5
Good accuracy, needs filtering
The sensor is accurate enough for my home energy monitor project. I did have to add some software filtering to smooth out the noise, but that is expected with analog sensors. Solid build quality.
Q: What is the maximum voltage this module can handle on the input side?
A: The module itself measures current, not voltage. However, the primary conductor path is isolated. Please refer to the specific datasheet for isolation voltage ratings, typically around 2.1kV RMS, but ensure your circuit voltage does not exceed safe limits for your PCB traces.
Q: How do I calibrate the zero-point offset?
A: With no current flowing through the sensor, measure the output voltage. It should be approximately half of your supply voltage (e.g., 2.5V for a 5V supply). Use this value as your 'zero' baseline in your code and subtract it from future readings to calculate the actual current.
Q: Can this sensor measure AC current as well as DC?
A: Yes, the ACS712 module can measure both AC and DC current. The output voltage will vary around the VCC/2 baseline depending on the direction and magnitude of the current flow.
Q: Does this come with screw terminals or do I need to solder wires?
A: This specific LSSZ board features heavy-duty copper pads for high-current connections. While you can solder wires directly, we recommend using high-temperature solder and thick gauge wire. Some variants may include screw terminals, so please check the product images carefully before ordering.
Q: Is there a library available for Raspberry Pi?
A: Since this is an analog sensor, it cannot connect directly to the GPIO pins of a standard Raspberry Pi which are digital. You will need an external ADC (Analog-to-Digital Converter) like the MCP3008. Once connected via SPI, you can use standard Python libraries to read the data.
Aizaofang Four-Connected Flower Elf Oval Flower DIY Handmade Soap Silicone Mold New Bar Soap Silicone Mold
$16.10
Ruitai Dental Korean Implant System Package
$3,980.00
Dental Implant Package - Full Mouth Zirconia Crowns by Dilic for Missing Teeth Replacement
$10.00
Adjustable Over-Toilet Storage Rack for Bathroom Floor Standing Space Saving Organizer
$147.20
Flake Soy Wax & White Bees Wax Pellets – DIY Cup Candle Making Kit with Strawberry Scented Mold and Raw Materials
$5.34
Manufacturer Supply FF High-Speed Dispersing Kettle - Stainless Steel Reactor for Paint, Ink, and Chemical Mixing Equipment
$9,104.80
Mia Bouncy Sketch Blending Cotton Sponge Ball Paper Stump Water-Absorbent Sponge New Art Tool Washable Magic Cotton for Students
$4.80
Yucheng 1606 Fast-Drying Acrylic Adhesive - Odorless, Non-Whitening Glue for Acrylic Bonding
$21.20
Magnetic Storage Shelf Cute Building Block Magnetic Organizer Box Refrigerator Decorative Sticker Cling Film Holder Wall-Mounted Fridge Magnet
$3.80
Commercial Countertop Fried Chicken Warmer Cabinet Hamburger Egg Tart Heating Constant Temperature Box Multi-Function Insulated Display Case for Fried Foods
$620.00
Rectangular Silicone Mold for DIY Handmade Soap
$16.80
Leqin 495 Super Glue - 20g Transparent Fast-Drying Adhesive for Hard Plastics, Metal, Wood, PVC, and Rubber
$25.84
New Chinese Style Zen Calligraphy Felt Mat, Non-Slip Desk Pad for Traditional Writing Tools
$16.50
LB-8001 Inline Water Sampler - Mixed Water Sample Retention Instrument
$10,312.16
Mont Marte Children's Paint Brush Set - Toddler Tempera and Watercolor Brushes, Beginner Fan Brushes, Graffiti Tools
$7.00
Alumina Hollow Sphere Bricks, Castables, High-Temperature Mullite Bricks, High-Alumina Lightweight Insulating Bricks
$124.53
Natural Crystal Lemon Yellow Azeztulite Round Beads for DIY Jewelry Making, Bracelets, and Necklaces
$0.74
Fast Stair-Climbing Folding Hand Truck, Portable Shopping Cart for Groceries and Luggage
$304.08
Yonghe Hair Transplant: Shaved Method for Large-Area Top Density Enhancement - Unlimited Grafts by Director Team
$19,800.00
Long Rectangular Self-Watering White Planter for Narrow Window Sills and Balconies
$12.90
![[In Stock] Maihe BOXFUN Rilakkuma Watch Blind Box - Gulu Gulu Moment Series Wristwatch, Gift for Girls](https://www.gosteppe.com/cache/small/product/269930/legacy-main-81bb51a69f43ed5a98182a06.png)
[In Stock] Maihe BOXFUN Rilakkuma Watch Blind Box - Gulu Gulu Moment Series Wristwatch, Gift for Girls
$29.00
6-Cavity Tulip Flower Handmade Soap Mold - DIY Silicone Mold for Soap and Baking
$11.87
TILTA Video Transmission Heat Sink Cooling Fan Compatible with DJI Transmission
$298.75
CNC External Thread Tool Holder SER2020K16/2525M16, 22 Positive/Negative External Turning Lathe Bar
$15.92
Drive Board JINT-E1C for ABB ACS850 Inverter
$4,100.00
Retainer Storage Case - Portable Magnetic Box for Invisalign, Dentures, and Children's Braces
$17.80
High-Quality Natural Wood Pencils - Non-Toxic HB and 2B for Grades 1-2 Writing, Exams, Drawing, and Sketching
$4.02
Wen Zhengming Small Regular Script 'Caotang Shizhi, Xue Fu, Yue Fu' Close-Up Tracing Cards Calligraphy Copybook
$10.00
Inverter Power Board SINT4610C
$3,072.00
Freestanding Bathroom Toilet Storage Rack, Multi-Tier Organizer for Above-Toilet Space
$92.80
![[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)
