MOTG-RS485 Module

4D Systems’ MOTG-RS485 accessory module adds RS485 communication on your next display application.

RS485 holds significant importance in industrial applications due to its ability to facilitate long-distance communication. This serial communication method is designed to operate over extended cable distances. This makes it an ideal choice when devices are spread out over considerable distances within an industrial setting. RS485 communication is widely used in manufacturing, medical, retail, and commercial industries, even those involving high-quality display modules and processors.

When we say that the display processor does not support the RS485 serial communication method, it means that the system is limited from being used in scenarios where long-distance communication is required.

4D Systems has designed an accessory board for equipping various gen4-uLCD displays with an RS485 module. For example, the MOTG-AC1 can be used as an interface board to connect a MOTG module to Diablo16-based gen4 display modules easily. Similarly, we offer MOTG-AC2, MOTG-AC3, and MOTG-AC4 to feature single/dual MOTG slots depending on the module size and processor used.

Connecting the MOTG-AC1 Adaptor and MOTG RS485 with gen4-uLCD-24DT

In this article, we will discuss the fundamental aspects of RS485 and its relevance in industrial display applications. Furthermore, we will explore the innovative solution provided by 4D systems through their MOTG-RS485 accessory module in implementing RS485 serial communication support in all gen4 micro LCD displays.

Basics of RS485 serial communication protocol

As mentioned earlier, RS485 communication is a serial communication method used for point-to-point communication among electrical devices, similar to USB and Ethernet, and is widely adopted in industrial applications. The RS485 communication method facilitates communication between a master and multiple slave devices in the network, where several slaves can be connected to the bus. While RS485 can support point-to-point communication, it is typically used with multiple slave devices.

Within the OSI model (Open Systems Interconnection) which defines the different layers of a communication system from the application to the physical layer, RS485 operates at the physical layer. The physical layer of the OSI model is responsible for facilitating data transfer between a device and a physical transmission medium.

The RS485 serial communication is not only for its long-distance data transmission capabilities but also for its resilience in electrically noisy environments. In RS485 communications, two types of noise can occur– differential noise and common mode noise.

While common mode noise generally has minimal impact, it is essential to implement the right circuit design techniques to minimize differential noise. In commercial applications, a twisted pair cable is used for RS485 communications to mitigate electrical interference. Each differential RS485 signal transceiver should be connected to the corresponding wires of the twisted pair, reducing the effects of electrical interference.

Reference: Embedded Display Solutions

In a standard RS485 communication system using a twisted pair cable, the master device, acting as the host computer , initiates communication by sending a signal through its TX wire to establish a connection with the slave devices on the network. Subsequently, the master device transmits commands to the end device, for example, a motor controller to control speed or direction, which, in turn, receives the signal through its RX wire connected to the same twisted pair cable.

The RS485 communication offers versatility in display applications due to its advantages over other serial communication methods. 4D Systems has provided support to its gen4 micro LCD displays through the integration of the MOTG-RS485 accessory module into the advanced display system.

Reference: Sparkfun

The above image depicts how an RS485 signal is observed on an oscilloscope. RS485 uses a differential signaling technique, where the same data is transmitted on two wires (A+ and B-) but with opposite polarities. When logic 1 is present on one wire, the other wire carries a logic 0.

To enable high-speed data transmission over long distances, these two opposing signals are transmitted through a twisted pair of wires. The advantage of this arrangement is that any noise induced on these lines affects both signals equally but in opposite directions, effectively canceling out the noise.

Add-on module to support RS485 communications

We developed the MOTG-RS485 module to offer a high-speed and low-cost solution that plays an important role in facilitating the integration of RS485 serial communication protocol in almost any of your intelligent display applications.

The MOTG-RS485 add-on module integrates the STMicroelectronics’ ST1480ACDR differential line transceiver, which operates using a 3.3V power supply for RS485 and RS422 communications. This transceiver configuration consists of a single driver and receiver, supporting half-duplex functionality. As a result, the module can alternate between transmitting and receiving data as required. With its robust capabilities, the transceiver enables reliable data transmission over long distances, even in electrically noisy environments.

Master and Slaves (RS485)

gen4 HMI 4.3″ Display Connected with the MOTG-AC4 Adaptor and MOTG-RS485 Module

What is 4D Systems’ MOTG approach?

4D Systems introduced the Modules-on-the-Go (MOTG) concept, enabling the seamless expansion of system capabilities for embedded designs involving display applications. This concept revolves around simple plug-and-play hardware modules that can be easily added or removed. This approach is aimed to eliminate the need for complex soldering, simplifying assembly and maintenance processes.

Conclusion

There you go. Now you can get your hands on the 4D Systems Modules-on-the-Go (MOTG) and add support for Wi-Fi, Bluetooth, RS485, RS232, CANBUS, and MP3 audio sound to your next display application.

The 4Discovery Range is also available as an option that supports RS485.

Until next time.

Advancing Critical Care with Intelligent Display Next Phase 3D Printed Advanced Anatomical Medical Mask 

If you missed our recent webinar on the future of critical care technology, here’s a brief rundown of the game-changer that had everyone talking: The 3D-printed Advanced Anatomical Medical Mask, known as the ‘Amarysia Artemis’.

A Glimpse into the Amarysia Artemis

During the webinar, we were introduced to the cutting-edge Amarysia Artemis. Designed specifically for ICUs, this isn’t your typical medical mask. With its integrated bio-sensor capabilities and an innovative embedded display, it’s set to revolutionize the way healthcare professionals access vital medical information. Doctors, nurses, and surgical teams can now view real-time critical data directly on the mask during operations and clinical applications, minimizing distraction and streamlining the process.

Meet the Brain Behind the Breakthrough

A highlight of the webinar was hearing directly from Leonardo Bilalis, the PhD student at the University of Piraeus behind this groundbreaking project. His passion for improving healthcare processes and patient care was palpable. Bilalis envisions a world where immediate and accurate medical data is always at hand, drastically enhancing medical decision-making. His insights on the development process, challenges, and aspirations for the Amarysia Artemis were truly inspiring.

Missed the Webinar? Catch the Recording!

While this recap provides a brief overview, the depth and breadth of information covered in the webinar about the Amarysia Artemis and its implications in the medical field were extensive. If you’re an engineer or simply someone passionate about the intersection of tech and healthcare, you won’t want to miss out.

For a comprehensive understanding and to see the Amarysia Artemis in action, we invite you to watch the full recording.

Until next time.

As touch screens become more prevalent in our daily lives, it’s important to understand how to properly care for them to maximise their accuracy, performance and longevity.

Touch screens are essential components in many modern electronics, from smart home control to industrial equipment. However, these touch screens tend to be fragile and sensitive, making it crucial to handle them with care. Improper care can lead to scratches, diminished sensitivity, and compromised accuracy. Therefore, it is essential to maintain these advanced touch screens diligently to ensure they remain in their best condition, allowing us to experience smooth and uninterrupted operation.

This comprehensive guide aims to provide you with a thorough understanding of various methods for caring for touch screens. Within this article, we will explore practical tips on how to protect, clean, and maintain your touch screen devices. By implementing these strategies, you can ensure that the touch screens of your digital computing systems stay responsive and efficient, ultimately enhancing your productivity and overall user experience.

Clean Your Touch Screen Regularly

Your touch screen is the primary interface between you and the computing system. However, regular usage can cause it to accumulate dirt, and oils from your fingers that can affect its functionality.

The first step in touch screen care is to clean it regularly. This is how we recommend cleaning your touch screen:

1. Turn off the device: Before cleaning your touch screen display, turn off the device to avoid accidentally triggering any functions while cleaning.
2. Choose the right material: Use a soft, lint-free cloth, such as a microfiber cloth, to clean the screen. Avoid using abrasive materials such as paper towels, tissue paper, or rough fabrics, as they can scratch the screen.
3. Dampen the cloth: Dampen the cloth with water or a mild cleaning solution specifically designed for touch screens. Do not use harsh chemicals, such as ammonia-based cleaners, alcohol, or vinegar, as they can damage the protective layer of the screen.
4. Clean the screen: Gently wipe the screen with the damp cloth in a circular motion, starting from the top of the screen and working your way down. Be careful not to apply too much pressure, as this can damage the screen.
5. Dry the screen: After cleaning, use a dry, soft cloth to wipe the screen dry. Do not use a hairdryer or other heating device to dry the screen, as this can damage the display.

Handle with Care

Handling your touch screen devices with care is important to preserve their lifespan and performance. The touch screen is vulnerable to the following damage–

1. Avoid excessive pressure: Touch screens function based on the slight electrical changes caused by your fingers. They are not designed to withstand high pressure or harsh impact. Consistently applying too much pressure or force can lead to cracks, dead pixels, or even total screen failure. Use only your fingers or a stylus designed specifically for touch screens.
2. Prevent sharp objects: Sharp objects such as pens, pencils, keys, or any pointed items can easily scratch or pierce the screen. These damages are often irreversible and can significantly affect your device’s performance. Avoid the temptation to use these objects.
3. Avoid extreme temperatures: Touch screen devices are sensitive to temperature extremes. High temperatures can cause your device to overheat, which can damage the screen and internal components. On the other hand, exposure to very cold conditions can cause the screen to become less responsive or even malfunction. Always try to keep your device in a moderate, room-temperature environment. Avoid leaving your device in hot cars, near heaters, or in direct sunlight for extended periods. Similarly, avoid using your device in freezing conditions.

Calibration

Calibration is important for Resistive touchscreen displays

Calibration becomes important, particularly in industrial applications, where accuracy and precision are essential. It ensures that the touch screen accurately detects touch and responds accordingly. When a touch screen loses its calibration, it can affect the accuracy of touch detection and result in incorrect input or unresponsive screens. 

In particular, resistive touch screens, when pressure is applied to the surface of the touchscreen through a finger, the two resistive layers come in contact at the point of the touch. This change in electrical current serves as a signal to prompt the device to carry out the required action. Consequently, calibration becomes crucial for resistive touch screens in order to ensure precise responsiveness to user input

On the contrary, capacitive touchscreen use electrodes that change the electrical capacitance when a conductive object touches the screen. In the manufacturing process, capacitive displays use glass material, which allow them to withstand more pressure impact. 4D Systems capacitive touchscreen panels cannot be calibrated because of this underlying technology and operation.

There is a need for direct human skin contact with capacitive touchscreens that restricts their ease of use, unlike resistive touchscreens. For instance, capacitive touchscreens do not support usage of external leather gloves, a limitation that is not applicable to any resistive touchscreens. 

Calibration aligns the touch screen coordinates with the system coordinates. Calibrating your touch screen periodically or as recommended, helps ensure that the touch screen accurately detects touch, responds promptly, and delivers precise results.  

Firmware Updates 

To keep your touch screen firmware updated, regularly check for updates through your device’s settings. Make sure that the device is always backed up with your data before initiating a firmware update, as an update process can sometimes lead to data loss if there’s an issue during installation. Additionally, ensure that your device is connected to a reliable power source before starting the update, as the process can consume a significant amount of power. 

Firmware updates addresses several of the following issues– 

1. Bug fixes: Firmware updates often address known issues or bugs that could be affecting your touch screen’s performance. This could include fixes to unresponsive areas on the screen, issues with screen rotation, or problems with certain touch gestures. 
2. Feature additions: Firmware updates may also introduce new features or improvements to existing features on your touch screen device.  
3. Software compatibility: Regular firmware updates ensure that your touch screen remains compatible with the latest software, offering you the best user experience. 

Complete Setup to Update the Firmware

To ensure the optimal performance of your 4D Systems display module, and in order to enable the latest feature releases, it is highly recommended to load the latest firmware. This means at the time of development, PmmC for Picaso, Pixxi, Goldelox, or PmmC plus Display Driver for Diablo. 

The PmmC (Personality Module Micro-Code) serves as the operating system for the device, incorporating the Extensible Virtual Engine runtime and a comprehensive instruction set that can be programmed using the Workshop4 Software IDE

In addition, the display driver (4DRV) is responsible for controlling the display and can be independently upgraded. This means that you can update the display driver at any time without impacting existing applications or stored data in the memory banks or the PmmC

These firmware updates aim to keep your display safe, ensuring its functionality, security, and compatibility with the latest advancements and improvements. By providing regular updates for both the PmmC and display driver, we enable you to maintain a secure and reliable display experience without any disruptions to your existing applications or data. 

Proper Storage

In addition to all of steps mentioned above, proper storage of the touch screen device can have significant impact on the performance. 4D Systems have also provided display specifications of gen4 display modules, where the customer can understand further on for storage temperature and operating voltage.

So there you have it. Following these simple steps can help you keep your touch screen clean and responsive. Regular cleaning will ensure the longevity of the device, and taking proper care will only maximise their accuracy and performance for the life of your end-application.

As always, for any further questions or if you’d like to discuss more, don’t hesitate to reach out to our engineers and support team.

Until next time.

gen4 intelligent display modules offer a modular design approach for simpler application development and faster time-to-market.

Embedded Displays: The Unseen Catalysts of Technological Interaction

Every day, we encounter embedded displays that blend effortlessly into our daily routines and activities. These displays, although often unnoticed, are discreetly incorporated into the complex devices we rely on, extending beyond just smartphones, televisions, and other large electronics. Whether it’s in our homes, workplaces, or public areas, these small but crucial displays play an important role in our interactions with innovative technology.

In our everyday coffee routine, we depend on the digital interface of our coffee machine to customize our brew. These tiny embedded displays, though often ignored, offer us a seamless and intuitive way to interface with the devices, effortlessly transforming a once complex process into a simple experience.

In addition to their domestic applications, these displays serve as the foundation for numerous industrial monitoring systems. Whether it’s ensuring machinery operates under optimal conditions, monitoring environmental factors, or managing production lines, these embedded displays offer essential real-time information.

In our ever more interconnected society, embedded displays are used by home automation systems to create intelligent and engaging living environments. From thermostats to security systems and automation interfaces, these displays not only offer crucial information but also enable us to configure and manage our devices. With their user-friendly design, they simplify the control and customization of our living environments in a straightforward manner.

However, it is crucial for manufacturers to carefully select the appropriate display that meets all the required specifications and interaction capabilities. Equally important is the inclusion of robust system-on-chips within the intelligent embedded display modules, as they are responsible for powering the entire system and delivering a smooth interactive experience to the user.

This article aims to examine whether the gen4 series of intelligent display modules, which are driven by processors from 4D Systems, are suitable for meeting your specific application needs.

The Family of gen4 Display Modules – What Are They?

After gaining valuable on-field experience across various industries, 4D Systems has successfully created the gen4 series of intelligent display modules. This versatile and highly regarded display platform has been developed based on widespread adoption of intelligent LCD display devices in different applications and the successful implementation of numerous customer projects in commercial settings.

The series comes with a diverse range of sizes and touch capabilities to cater to different needs. These modules are purposefully designed to integrate efficiently with a wide range of host microcontroller units and processors, including those with limited pin counts.

The gen4 series offers impressive features suitable for both industrial and home applications. They provide the convenience of choosing between resistive touch or capacitive touch options. Powering these gen4 display modules is the company’s own Diablo16, and Picaso, and Pixxi graphics processor, which delivers a multitude of functionalities and options for designers, system integrators, and end-users.

A compelling reason to opt for gen4 series intelligent embedded display modules is the availability of pre-developed and validated drivers, primitives, and GUI functions. This allows the host microcontroller to offload display-related tasks, freeing up system resources for primary applications. Consequently, users can concentrate their efforts on GUI design without getting bogged down in time-consuming low-level development tasks.

In terms of software, the modules are equipped with integrated development environments (IDEs) that simplify the GUI design process. These user-friendly IDEs offer intuitive drag-and-drop functionality, facilitating fast prototyping and application development without the need for extensive coding.

The gen4 series display modules adhere to a modular design approach. Utilizing this modular design, it becomes evident that application development becomes significantly simpler and more straightforward when compared to a discrete design. As a result, the time to market is reduced, enabling faster product deployment

Why Choose gen4 Human-Machine Embedded Displays?

In this section of the article, we will explore some of the noteworthy characteristics of gen4 intelligent display modules. These modules emerge as an ideal and go-to option for seamlessly integrating small displays into embedded applications on a large scale.

1. Powerful Embedded Processor

When considering a smart display module, the initial aspect to consider is the host microcontroller or processor, as it determines the module’s performance and efficiency. The graphics processor developed by 4D Systems offers exceptional functionality as both a standalone embedded graphics processor and as an interface to almost any host controller, functioning as a graphics co-processor. These gen4 HMI modules are equipped with 4D Labs Graphics Processors.

Designed for easy integration with a variety of OLED and LCD display panels, the custom-embedded 4DGL graphics controllers offer exceptional compatibility and functionality. Among these controllers, the Diablo16 stands out as a more powerful option compared to the Picaso and Pixxi variants. It boasts superior flash storage, random access memory, and graphic capabilities. This explains why 4D Systems offers a wide range of gen4 displays powered by the Diablo16 processor, as it enables impressive graphics, text rendering, image processing, and animation capabilities.

2. Range of Sizes and Touch Capabilities

4D Systems provides a diverse selection of display sizes, ranging from 2.4 inches to 7 inches, allowing users to choose the ideal display size based on their specific application needs. In terms of availability, the Picaso processors are limited and come in three sizes (2.4 inches, 2.8 inches, and 3.2 inches). On the other hand, the Diablo16 and Pixxi modules offer a wider range of sizes, starting from 2.4 inches and going up to the 9-inch format.

The next consideration is determining the most suitable interaction type for your desired application. These display modules present a variety of options, including non-touch, resistive touch, and capacitive touch variants. Capacitive displays are often preferred by manufacturers for their advanced and intuitive touchscreen experience.

When selecting the appropriate display type, it is crucial for users to assess the application parameters and the expected level of user interaction. This evaluation simplifies the process of choosing the right display module for their specific needs.

3. Support for Popular Hardware Interfaces

4D Systems acknowledges the widespread adoption of Arduino and Raspberry Pi hardware platforms across various industries due to their well-established ecosystems and extensive network of trusted design partners.

To cater to this demand, the gen4 series of intelligent display modules are fully compatible with both these popular and widely used hardware devices. This compatibility provides customers with increased flexibility and options to customize their displays, allowing them to maximize performance for their specific applications.

4D Systems has designed the gen4 HMI modules to efficiently integrate with almost any host processors or platforms. Recognizing the extensive utilization of Arduino and Raspberry Pi hardware platforms in various industries, thanks to their well-established ecosystems and reliable network of design partners, the company has developed software libraries that cater to these popular hardware platforms. This includes comprehensive support for Rock and BeagleBone, enabling smooth integration between the gen4 HMI modules and these widely adopted platforms.

4. Mounting Options

4D Systems offers the convenience of 3D printable enclosures, which are designed to simplify the process of mounting display modules on walls, panels, or within larger enclosures. This feature enables the overall usability and installation options for integrating the gen4 series display modules into various applications.

For example, consider the application of a home automation system where the gen4 series display module requires mounting on a wall, serving as a centralized control panel for managing numerous smart devices within the home. This scenario exemplifies the versatility of utilizing 3D printable enclosures alongside gen4 display modules, showcasing their ability to enhance the functionality and aesthetics of diverse applications.

5. Aesthetic Design With Protection

In addition to enhancing the aesthetics of the device and screen, 4D Systems incorporates a cover lens bezel, which offers not only cosmetic value but also practical benefits. These advantages include providing protection for the display, facilitating easy replacement if needed, securely holding the components in place, and improving overall usability. It is important to note that the cover lens bezel is available for all gen4 display modules featuring capacitive touch and non-touch functionality resistive touch functionality.

By incorporating a bezel, an additional layer of protection is provided to the device’s screen, effectively shielding it from external impacts. The integration of bezels serves the purpose of minimizing unintended interactions with the display, ensuring an intuitive a more easy user experience.

How Is a gen4 Display Module Used In a Commercial Coffee Machine?

South African coffee machine manufacturer, Henlo, recently utilized a 4D Systems gen4-uLCD-43DCT-CLB display module with an embedded Diablo16 processor and a capacitive touch panel. Additionally, the manufacturer opted to also use two 1.3” round pixxiLCD intelligent display modules, which feature the embedded Pixxi-28 processor and a capacitive touch panel complete with a cover lens bezel.

According to Henlo van der Westhuizen, the designer, incorporating these screens as input/output components adds a comprehensive software layer between customers and the machinery. This integration ensures customer satisfaction even in the presence of minor issues that may arise during operation.

After carefully considering the coffee machine’s display needs, Henlo van der Westhuizen identified the importance of having a glass bezel for the display, which effectively protects the screen from moisture exposure during the coffee brewing process. Leveraging the robust GUI tools offered by 4D Systems, Henlo’s designers gained the flexibility to create an interface that precisely met their customers’ expectations in terms of aesthetics and functionality.

Henlo, South Africa:Henlo Premium Espresso Machine

Can gen4 Be Used In The Healthcare Industry Too?

CEiiA, a Portuguese research and development firm, responded to the challenges posed by the Covid-19 pandemic by creating Atena, an invasive medical ventilator.

This innovative device incorporates key components, including the 7.0-inch gen4-uLCD-70DT display and the gen4-BEZEL-70B, sourced from 4D Systems. These display components play an essential role in the functionality and operation of the ventilator. “We required the graphic display to be intuitive, easy to program, feature-rich, and most importantly, reliable for the project. The gen4-uLCD-70DT met all of these conditions, and we programmed it using the 4D Workshop4 Pro IDE and Visi Genie environment,” says Tiago Rebelo, director of the Product and Service Development Unit at CEiiA, the Centre of Engineering and Product Development.

The team acknowledges the remarkable achievement of completing the development within an accelerated timeframe of just 45 days, largely attributed to the utilization of readily available display modules from the gen4 series. Leveraging these off-the-shelf display modules, CEiiA managed to manufacture around 1,000 units of the initial ventilator version, meeting the local demand for this critical medical equipment.

CEiiA, Portugal: Atena Invasive Medical Ventilator

There You Have It, a Proven Performer.

In conclusion, the 4D Systems gen4 series of intelligent display modules are proven to be a valuable addition to your applications across industries. These modules excel in their ability to seamlessly integrate, exhibit compatibility with different hardware platforms, and provide a wide array of display sizes and interaction options, making them highly versatile for commercial applications. With their powerful processors and robust functionality, they continue to drive innovation and efficiency within the embedded display industry.

For more details regarding the range of gen4 display modules, additional information can be found on our website. If you require assistance in selecting the most suitable display module for your needs, please feel free to contact us for expert support and guidance.

Until next time.