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SparkFun Load Cell Amplifier - HX711 Small Breakout Board Read Load Cells to Measure Weight Four-Wire Wheatstone Bridge Configuration Connect to sensors Build Scale Process Control Presence Detection
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SparkFun Load Cell Amplifier - HX711 Small Breakout Board Read Load Cells to Measure Weight Four-Wire Wheatstone Bridge Configuration Connect to sensors Build Scale Process Control Presence Detection
The SparkFun Load Cell Amplifier allows you to easily read load cells to measure weight with very accurate measurements.
SparkFun Load Cell Amplifier - HX711 Small Breakout Board Read Load Cells to Measure Weight Four-Wire Wheatstone Bridge Configuration Connect to sensors Build Scale Process Control Presence Detection
Item #: 15673326

SparkFun Load Cell Amplifier - HX711 Small Breakout Board Read Load Cells to Measure Weight Four-Wire Wheatstone Bridge Configuration Connect to

Item #: 15673326

USD 32

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The SparkFun Load Cell Amplifier allows you to easily read load cells to measure weight with very accurate measurements.
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What Stands Out

Highly Accurate Readings
The HX711 amplifier delivers precise weight measurements, making it ideal for applications requiring accuracy, such as scales and process control systems.
Compact Design
This small breakout board's compact size allows for easy integration into various projects, perfect for DIY enthusiasts and professionals seeking space-efficient solutions.
Easy Connectivity
With a four-wire Wheatstone bridge configuration, the HX711 booster simplifies connections to sensors, ensuring quick setups for consistent, reliable weight measurement applications.

Product Details

Shop for SparkFun Load Cell Amplifier - HX711 Small Breakout Board at Ubuy Turks and Caicos. Easily read load cells, measure weight, and build your own industrial scale or process control. Get accurate weight measurements with this small breakout board.
  • Read load cells to measure weight accurately with some calibration required
  • Features separated analog and digital supply for improved performance
  • Two-wire interface (Clock and Data) for easy communication with microcontroller GPIO pins
  • Operates at 2.7V--5V with an operation current of less than 1.5mA
  • Selectable 10SPS or 80SPS output data rate with simultaneous 50 and 60Hz supply rejection
  • Ideal for creating industrial scales, process control, or presence detection
Package Weight1 Pound

Who Should Buy?

Suitable For
  • Hobbyist Developers

    Ideal for hobbyists aiming to create custom weight measurement projects using load cells and Arduino platforms.

  • Embedded Systems

    Perfect for embedded system developers needing precise weight measurement in automated processes and control systems.

  • Research Projects

    Suitable for academic research focusing on weight measurement and sensor integration in experiments or prototypes.

Not Suitable For
  • Non-Technical Users

    Not suitable for users without technical skills, as installation and calibration require some electronics knowledge.

  • High-Precision Needs

    Not recommended for applications demanding extremely high precision weight measurements beyond typical load cell capabilities.

  • Consumer Scales

    Not ideal for commercial consumer scales as it requires additional components and programming for full functionality.

Product Description

SparkFun Load Cell Amplifier - HX711 Small Breakout Board Read Load Cells to Measure Weight Four-Wire Wheatstone Bridge Configuration Connect to sensors Build Scale Process Control Presence Detection

About This Item

Introducing the SparkFun Load Cell Amplifier - HX711 Small Breakout Board: Your Solution for Accurate Weight Measurements! Whether you're a hobbyist or a professional, the SparkFun Load Cell Amplifier is the perfect tool for easily reading load cells to measure weight. With this small breakout board, you can connect the amplifier to your microcontroller and capture changes in the resistance of the load cell. With some calibration, you'll achieve highly accurate weight measurements. This versatile amplifier opens up a world of possibilities.

Use it to build your own industrial scale, implement process control in your projects, or even create a simple presence detection system. The SparkFun Load Cell Amplifier can handle it all. We've listened to your feedback and made some improvements to this version! The analog and digital supply have been separated, ensuring maximum performance. Additionally, we've included a 3.3uH inductor and a 0.1uF filter capacitor for digital supply, further enhancing signal quality. The HX711 IC, used by the amplifier, communicates through a two-wire interface (Clock and Data), making integration with any microcontroller a breeze.

Numerous libraries are available, simplifying the process of retrieving data from the HX711. Check out our hookup guide below for more details. Load cells are connected to the HX711 using a four-wire Wheatstone bridge configuration. The color-coded wires (RED, BLK, WHT, GRN, and YLW) correspond to standard load cell color coding.

Red represents Excitation+ or VCC, black represents Excitation- or GND, white represents Amplifier+, Signal+, or Output+, and green represents A-, S-, or O-. The yellow wire serves as an optional input for grounding and shielding against external electromagnetic interference (EMI). Please note that some load cells may have slight variations in color coding. Invest in the SparkFun Load Cell Amplifier - HX711 Small Breakout Board today and unlock the power of accurate weight measurement.

Whether you're a maker, engineer, or enthusiast, this amplifier is a must-have addition to your toolkit. Order now and take your projects to the next level!.

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Customer Questions & Answers

  • Question: What is the SparkFun Load Cell Amplifier - HX711?

    Answer: The SparkFun Load Cell Amplifier - HX711 is a compact breakout board designed for reading load cells in weighing applications. It utilizes the HX711 IC, which provides a high-resolution interface to load cells. This amplifier can enhance the signal from the load cell, allowing for accurate weight measurement. It’s particularly useful in projects requiring precise weight measurement, such as electronic scales or force sensors, making it ideal for hobbyists and professionals in robotics, automation, or health tech.
  • Question: How do I connect the HX711 to a load cell?

    Answer: Connecting the HX711 to a load cell involves a straightforward wiring process. The load cell typically has four wires corresponding to its Wheatstone bridge configuration: two for the signal (often red and black) and two for the power supply (usually white and green). You will connect these wires to the HX711 pins based on the specifications provided in the HX711 documentation. Such connectivity enables the board to amplify the load cell's minute signals, transforming them into readable data for weight measurement in various applications.
  • Question: Can the HX711 be used in mobile applications?

    Answer: Yes, the HX711 can be utilized in mobile applications, particularly in portable weighing devices. It is compact and consumes little power, making it suitable for battery-operated devices. Whether you’re working on a portable scale or an IoT-based force measurement tool, this amplifier ensures reliable performance even in mobile settings. Many DIY enthusiasts and engineers use it in weight-sensitive applications like portable medical equipment or handheld scales for convenience and portability.
  • Question: What platforms are compatible with the HX711?

    Answer: The HX711 is widely compatible with platforms such as Arduino, Raspberry Pi, and ESP8266. This versatility allows users to easily integrate the breakout board into their projects without extensive modifications. Developers often use libraries like the HX711 library for Arduino, simplifying the coding process. By leveraging these platforms, users can create a variety of applications, from simple weight scales to complex force measurement systems, catering to diverse project requirements.
  • Question: What type of load cells work with HX711?

    Answer: The HX711 is designed to work with various types of load cells, specifically those configured in a four-wire Wheatstone bridge configuration. Common examples include strain gauge load cells and s-type load cells. Its functionality supports applications ranging from kitchen scales to industrial weighing systems, giving users flexibility in their choice. Utilizing compatible load cells ensures precise measurement and effective integration into complex systems or custom-designed projects.
  • Question: How does the HX711 improve weight measurement accuracy?

    Answer: The HX711 improves weight measurement accuracy by amplifying the small signals produced by load cells. It features a 24-bit ADC, which captures minute changes in weight with high resolution. Additionally, it allows for programmable gain adjustments, enabling finer calibration based on specific load cell characteristics. This capability is crucial for applications like automated postal scales or research experiments where accurate weight readings are critical for functionality.
  • Question: What projects can I use the HX711 for?

    Answer: The HX711 is ideal for various DIY electronics projects, including smart scales, automated feeding systems for pets, and precision measuring devices. Hobbyists often employ it in electronic scale kits or custom health management systems that monitor weight changes. Its versatility in applications makes it a favorite choice for engineers and makers looking to incorporate weight measurements into their projects efficiently.
  • Question: Is coding required to use the HX711?

    Answer: Yes, utilizing the HX711 typically requires some coding, especially if you're integrating it with platforms like Arduino or Raspberry Pi. Users can leverage libraries that simplify interaction with the board. This coding allows for calibration, data extraction, and interfacing with other hardware components. Even beginners can successfully implement the HX711 with the available libraries and community support, making it an accessible choice for those learning electronics.
  • Question: How can I calibrate the HX711 for precise readings?

    Answer: Calibrating the HX711 involves applying known weights and adjusting the calibration factor in your code until the output matches the expected values. This process enhances accuracy for real-world measurements. Many users set up a simple test rig where weights are added incrementally, observing output changes, and adjusting their code accordingly. Proper calibration is essential for critical applications, ensuring that users obtain reliable data for their projects.
  • Question: Where can I buy the SparkFun Load Cell Amplifier - HX711 in Turks and Caicos?

    Answer: You can purchase the SparkFun Load Cell Amplifier - HX711 Small Breakout Board from Ubuy in Turks and Caicos. Ubuy provides an extensive range of electronics, ensuring you can find your desired product along with related components. With Ubuy’s user-friendly interface and product availability, acquiring the HX711 for your projects is both convenient and efficient.

SparkFun Sensor Blocks Editorial Review

The SparkFun Load Cell Amplifier - HX711 Small Breakout Board has received mixed reviews from customers. While some have found success with this product and appreciate its stability, others have been disappointed with its performance. One customer expressed disappointment, stating that despite the higher cost and the fact that it is made in the USA, the product did not work at all. They mentioned that even when running a sketch with or without the unit connected, the load values remained the same. This customer concluded that there was no reason to spend more on this product when equivalent results could be obtained from cheaper alternatives from overseas. Another customer, who normally supports SparkFun products, also had a negative experience with this load cell amplifier. They initially purchased it because they were using cheap HX711 knockoffs from China that weren't stable. While the SparkFun amplifier proved to be more stable, it unexpectedly stopped working after a few days. The customer speculated that a voltage spike may have caused the failure but noted that none of the other components were affected. Disappointed with the higher price and the unexpected failure, they decided to return to the cheaper alternative. Overall, the customer experience and reception of the SparkFun Load Cell Amplifier - HX711 Small Breakout Board has been mixed. While some have found it to be stable and satisfactory, others have encountered issues such as a lack of functionality and unexpected failures.

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Pros

  • Made in the USA
  • Provides stability compared to cheap knockoff alternatives

Cons

  • Some customers experienced a lack of functionality

Product Price History

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USD 32

Order now and get it around Tuesday, July 07

QTY:

Secured transactionsecured transaction

Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.

Our Top Logistics Partners
  • fedex
  • dhl
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Features & Benefits

  • Read changes in resistance of load cell for accurate weight measurements.
  • Separated analog & digital supply with 3.3uH inductor and 0.1uF filter capacitor for digital supply.
  • Two-wire interface (Clock and Data) for communication with a microcontroller GPIO pins.
  • Operation Voltage: 2.7V--5V. Operation Current: <1.5mA.
  • Selectable 10SPS or 80SPS output data rate.
  • Simultaneous 50 and 60Hz supply rejection