In this ever-evolving landscape of industrial automation, advanced sensing technologies are pivotal. Our team of skilled PCB design engineers has been at the forefront of this technological evolution, utilizing Flux to develop reference designs for industrial-grade sensors. This blog post showcases 18 of our key projects, each uniquely contributing to the field of industrial sensing.

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Why Flux for PCB Design?

Flux stands out in the PCB design industry, adhering to three core principles: promoting reusability, fostering collaboration, and keeping the designer focused. The emphasis on reusability allows individuals and organizations to amplify their impact. Users can leverage the work of others in the community by using templates, modules, or example projects, saving time and resources. This approach to PCB design not only streamlines the development process but also fosters a collaborative environment where designers can share and build upon each other's work, leading to more innovative and efficient designs. By keeping these principles at the forefront, Flux ensures that designers remain focused on what's most important, allowing them to deliver high-quality, effective PCB solutions for complex industrial sensing applications.

Reference Designs Highlights

Our PCB design projects, showcased below, are not just innovative solutions but also serve as reusable modules in Flux. Each module is carefully crafted to ensure it can be easily adapted and used by anyone in the community. These modules exemplify the principle of reusability, allowing other designers to leverage our work for their own applications, fostering a collaborative and efficient approach to PCB design.

1. Advanced Light Sensing: TSL25911FN

This project is a reference design for a TSL25911FN-based sensor module, with level-shifted I2C communication. It includes a 3.3V regulator, I2C level shifter, filter capacitors, pull-up resistors, and JST connectors for interfacing.

We developed a high-precision light intensity measurement system using the TSL25911FN. Flux Copilot played a crucial role in optimizing the layout for minimal interference and maximum sensitivity, ensuring accurate light measurement critical in quality control systems within manufacturing processes.

2. Robust Data Communication: PCA9615

This is a reference design for PCA9615 IC 2-channel multipoint Fast-mode Plus differential I2C-bus  with BME280 Humidity Temperature Sensor. Suitable for long-range I2C communication in harsh, EMI-noisy environment.

The PCA9615 was the cornerstone of our design for reliable long-distance I²C communication in noisy industrial environments. By leveraging Flux, we successfully mitigated EMI effects, making this design essential for large-scale industrial automation networks.

3. Thermal Imaging Breakthrough: MLX90640ESF-BAA-000-TU

This project is a IR camera sensor module based on the TSL25911FN sensor, equipped with I2C communication technique. The module features a 3.3V regulator, I2C level shifter, LEDs, capacitors, resistors, and JST connectors for easy interfacing.

Utilizing the MLX90640ESF-BAA-000-TU, we crafted a sophisticated thermal imaging sensor. Flux was instrumental in the design, allowing for intricate circuitry that handles the high data throughput and thermal management required for accurate imaging. This sensor has become a game-changer in industrial safety and process monitoring, providing critical thermal data in real-time.

4. Precision Pressure Control: PGA300ARHHR

This project is a reference design utilizing Texas Instruments' PGA300ARHHR, a precision analog and digital IC, for signal processing. The circuit also includes a Diodes Incorporated's FZT603QTA Transistor, passive components like resistors and capacitors, and connectors from JST Sales America Inc.

The PGA300ARHHR was the key component in our design of a high-precision pressure sensor system. This sensor is now widely used in fluid dynamics control in various industrial applications, demonstrating its versatility and reliability.

5. Distance Measurement Innovation: VL53L0CXV0DH

This project is a reference design for a VL53L0CXV0DH-based sensor circuit. It incorporates the use of a Texas Instruments LP5907MFX-2.8/NOPB to regulate the supply voltage.

Our design using the VL53L0CXV0DH revolutionized short-range distance measurement in industrial settings. The layout and routing capabilities in Flux allowed us to maximize the sensor's range and accuracy, making it ideal for applications like inventory management and automated guided vehicles.

6. Multi-Range Sensing Solution: VL6180X

This project is a reference design for a VL6180X-based sensor circuit. It incorporates the use of a Texas Instruments LP5907MFX-2.8/NOPB to regulate the supply voltage.

Incorporating the VL6180X, we developed a versatile multi-range sensor, adept at handling both proximity and ambient light measurement. Thanks to Flux's precision in PCB layout, we achieved a compact design that is now crucial in space-constrained industrial environments, particularly in robotics and assembly lines.

7. Advanced Long-Range Sensing: VL53L1X

This project is a reference design for a VL53L1X-based sensor circuit. It incorporates the use of a Texas Instruments LP5907MFX-2.8/NOPB to regulate the supply voltage.

The VL53L1X enabled us to push the boundaries of long-range sensing. This sensor offers exceptional range and accuracy, which is now integral in large-scale automation and monitoring systems.

8. Cutting-Edge Imaging Sensor: VL53L4CD

This project is a reference design for a VL53L4CD-based sensor circuit. It incorporates the use of a Texas Instruments LP5907MFX-2.8/NOPB to regulate the supply voltage.

Our VL53L4CD-based design marked a significant advancement in high-resolution imaging sensors. Leveraging Flux's capabilities, we engineered a PCB that supports complex data processing, essential for applications like precision mapping and 3D modeling in industrial scenarios.

9. Time-of-Flight Sensing Mastery: TMF8801-1BM

This is a reference design of a PCB utilizing the TMF8801-1BM time-of-flight (ToF) sensor from ams-OSRAM. It comprises electronic components such as resistors, capacitors, voltage regulators, and GPIO connectors. The logic signals are managed via Mosfets BSS138 while the Sensor IC is powered & controlled by a 3.3V AP2112K Voltage Regulator.

The TMF8801-1BM was central to our innovative time-of-flight sensor design. With Flux, we've enabled us to layout the board more efficiently, resulting in a sensor that excels in real-time positioning and collision avoidance in automated systems.

10. Enhanced Object Detection: TMF8820-1AM

This is a reference design of a PCB utilizing the TMF8820-1AM time-of-flight (ToF) sensor from ams-OSRAM. It comprises electronic components such as resistors, capacitors, voltage regulators, and GPIO connectors. The logic signals are managed via Mosfets BSS138 while the Sensor IC is powered & controlled by a 3.3V AP2112K Voltage Regulator.

Using the TMF8820-1AM, we designed a sensor specifically for efficient object detection. The measurement tool in Flux allowed us to create a design that provides high-accuracy detection, making it ideal for safety and surveillance applications in industrial environments.

11. Color Sensing Precision: TCS3200D-TR

This project is a TCS3200D-TR color sensor circuit utilizing resistors, capacitors, LEDs, a JST connector, and a transistor for control. The color sensor allows for precise color identification and its output is accessible through a JST connector.

Our TCS3200D-TR-based design focused on high-fidelity color detection. We achieved a design that offers remarkable color sensing discrimination, essential in quality control processes in industries like textiles and printing.

12. Advanced Light Sensing: ISL29125IROZ-T7

This is an ISL29125IROZ-T7-based reference design with voltage regulator AP2112K-3.3TRG1 for power supply. The circuit features a level-shifting configuration using BSS138 transistors for SDA and SCL lines, as well as auxiliary components including capacitors and resistors for proper operation.

The ISL29125IROZ-T7 allowed us to develop a high-performance light sensor. This sensor is used extensively in ambient light measurement and color balancing in industrial displays.

13. Laser Measurement Expertise: AFBR-S50LV85D

This project involves a Reference Design for the AFBR-S50LV85D by Broadcom, a time of flight sensor. It includes circuitry that implements SPI communication, with capacitors for smoothened DC supply. The core component, AFBR-S50LV85D, connects with the mandatory SPI and power nets.

In our design with the AFBR-S50LV85D, we specialized in long-range laser measurement. This sensor isideal for applications requiring precise distance measurements, such as in warehouse logistics.

14. Advanced CMOS Sensor Design: AR0144CS

This project is schematic and PCB design for an AR0144CS camera sensor-based system.

The AR0144CS was the foundation for our high-resolution CMOS sensor. Using Flux, we developed a PCB that supports complex image processing algorithms, crucial for detailed visual inspections in automated manufacturing processes.

15. Proximity Sensing Redefined: VCNL3040

This project is a reference design for the VCNL3040 sensor interfaced via I2C. It includes a VCNL3040 ambient light sensor, a voltage regulator (AP2112K-3.3TRG1), an I2C level shifter using BSS138 MOSFETs, and necessary support components. Circuit interfaces through a JST connector. All components are powered by a 3.3V power source.

Our design using the VCNL3040 redefined proximity sensing in industrial environments. With Flux, we crafted a compact and efficient layout, resulting in a sensor widely used in machinery safety and user interface applications.

16. UV Sensing Innovation: LTR-390UV-01

This project is a design for a UV sensor circuit based on the Lite-On LTR-390UV-01. Key components include a voltage regulator (AP2112K-3.3TRG1), level-shifting N-channel MOSFETs (BSS138), resistors, and capacitors. The circuit interface includes I2C communication and power connections, facilitated through JST connectors.

The LTR-390UV-01 led to our breakthrough in UV light sensing. Thanks to Flux's layout design tool, we created a sensor that accurately measures UV light intensity, crucial for monitoring and controlling industrial processes involving UV curing and sterilization.

17. Reflective Sensing Solution: QRE1113

This project is a QRE1113 opto-reflective sensor circuit, using a 47K pull-up resistor (R2) and a 100 Ohm resistor (R1). It includes a 1µF capacitor  (C1) for stability and attaches to a JST connector (J1) for easy interfacing. Power is provided via VCC, with the output signal (OPTO_OUT) fed back.

Using the QRE1113, we developed a reflective sensor adept at detecting object presence and positioning. This sensor offers high sensitivity and reliability, essential in applications like conveyor belt control and product sorting in manufacturing lines.

18. Compact Distance Measurement: GP2Y0D805Z0F

This project is a distance detecting sensor circuit build around GP2Y0D805Z0F IC from SHARP/Socle Technology. It includes decoupling capacitors, feedback resistors, and a LED for signal indication, with power being supplied via the J1 connector.

Our design with the GP2Y0D805Z0F focused on compact distance measurement solutions. Thanks to Flux, we were able to create a tiny yet highly effective sensor used in applications where space is at a premium, such as in handheld devices and robotics.

Overcoming Challenges

The design journey for each of these modules presented unique challenges, underscoring the versatility and adaptability required in the field of PCB design, particularly when using Flux.

  • Thermal Management in MLX90640ESF-BAA-000-TU: Designing with the MLX90640ESF-BAA-000-TU, a thermal imaging sensor, required meticulous attention to thermal management. We had to ensure that the heat generated by the sensor did not affect its performance, which was critical for applications in safety and process monitoring.
  • Signal Integrity with PCA9615: For the PCA9615, ensuring signal integrity over long I²C communication lines in noisy industrial environments was a significant challenge. We focused on designing a robust layout that could resist electromagnetic interference, essential for reliable data communication in automation networks.
  • Size Constraints with VL53L0X: Incorporating the VL53L0X into a compact sensor module for distance measurement involved overcoming size constraints. The challenge was to maintain the sensor’s range and accuracy in a significantly reduced footprint, making it suitable for space-constrained applications like inventory management.
  • Power Optimization for VCNL3040: Designing with the VCNL3040, a proximity sensor, posed challenges in power optimization. We had to ensure that the sensor operated efficiently to extend the battery life of the devices it was integrated into, which was crucial for its use in safety and user interface applications.
  • Light Interference with ISL29125IROZ-T7: The ISL29125IROZ-T7, a light sensor, required us to devise ways to manage light interference effectively. This was crucial for its application in ambient light measurement and color balancing in industrial displays, where accuracy is paramount.

These challenges and others like them were addressed through innovative design approaches, leveraging Flux’s capabilities in layout design and component integration. By overcoming these hurdles, we were able to create modules that are not only effective in their specific applications but also versatile enough to be adapted for a wide range of uses in the industrial sector.

The Future of Industrial Sensing

The future of industrial sensing is marked by rapid technological advancements and a shift towards smarter, more efficient systems. Integration of IoT and AI technologies is transforming sensors into intelligent devices capable of real-time data analysis and decision-making. Miniaturization remains a key trend, with sensors getting smaller yet more powerful, catering to space and energy-efficient needs in diverse industrial applications.

Emerging materials and manufacturing techniques promise to enhance sensor sensitivity and durability, crucial for extreme industrial environments. Customization and flexibility in sensor design are increasingly important, enabling quick adaptation to specific industrial needs. This is where tools like Flux, promoting reusability and collaboration, become vital.

Additionally, environmental sustainability and data security are becoming critical considerations in sensor development and deployment. As sensors become more interconnected, ensuring secure and reliable data transmission is paramount.

In conclusion, the industrial sensing landscape is evolving towards more adaptable, intelligent, and sustainable solutions, with immense potential for innovation and impact in various industrial sectors.

Engage with Us

We'd love to hear about your experiences with industrial sensor designs or any inquiries you might have. If you're looking for expert advice or services in PCB design, feel free to contact us or join our Slack channel and share with our community of 2,000 and growing. Together, we’ll change the future of PCB design!

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Jharwin Barrozo

Jharwin is an electronics engineer mainly focused on satellites. He built his own ground station using Flux to monitor RF activities on the International Space Station. Find him on Flux @jharwinbarrozo

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Flux is a better way to build PCBs
Go 10x faster from idea to PCB by reducing busy work, never starting from scratch, and keeping your team in sync. All from the browser.
Screenshot of the Flux app showing a PCB in 3D mode with collaborative cursors, a comment thread pinned on the canvas, and live pricing and availability for a part on the board.
Flux is a better way to build PCBs
Go 10x faster from idea to PCB by reducing busy work, never starting from scratch, and keeping your team in sync. All from the browser.
Screenshot of the Flux app showing a PCB in 3D mode with collaborative cursors, a comment thread pinned on the canvas, and live pricing and availability for a part on the board.
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