The Industrial Internet of Things integrates monitoring-capable sensors with controllers, advanced technologies such as mobile communication and intelligent analysis into every stage of industrial production, thereby enhancing manufacturing efficiency, improving product quality, and reducing production costs. The ultimate goal is to elevate traditional industries to an intelligent stage.The application of the Industrial Internet of Things features high real-time performance, high automation, high security, and strong information interconnectivity.In 2017, the scale of China’s industrial IoT reached 240 billion yuan, accounting for about 19.8% of the entire IoT industry. It is expected that under the promotion of national policies and the demand for applications, by 2020, the industrial IoT’s share of the entire IoT industry will reach 25%, and the scale will exceed 440 billion yuan.According to GE’s report “Industrial Internet: Breaking the Boundaries Between Wisdom and Machines”, in the next 15 years, a 1% increase in efficiency in several key industrial fields will bring huge benefits.According to calculations from Anxin Securities, a 1% increase in efficiency in the industrial field of the industrial internet is equivalent to bringing 298 billion yuan of economic value to China.
(Source: GE’s report “Industrial Internet: Breaking the Boundaries Between Wisdom and Machines”)
WPG Holdings has launched an industrial IoT solution based on the Renesas MCU RA6M3 for the current industrial IoT market, which features HMI, Ethernet transmission support, and industrial-grade sensor data collection.The solution consists of an MCU Board & Sensor Board.
Hardware Design Description1. MCU BoardThe main control chip of this industrial IoT application solution adopts the Renesas MCU RA6M3, which has a Cortex-M4 architecture, 120MHz, and features low power consumption and high performance. This chip supports HMI & Ethernet, has a built-in JPEG Codec, 2D Drawing Engine, and supports encryption functions. Other detailed functions are shown in the figure below:
In addition, the MCU Board also provides Ethernet, HMI, Arduino, and PMOD interfaces, with detailed position indications shown in the figure below.
2. Sensor BoardThe Pathfinder Sensor Board integrates functions such as an OLED display, vibration motor, RGB lights, UV Sensor, H&T temperature and humidity Sensor, and Light Sensor, supporting various data collection.It connects to the MCU Board via Arduino interface.
Solution Schematic Design:Main control chip schematic (partial)
HMI screen mode selection schematic (partial)
Solution Layout Design:The solution adopts a two-layer board design, as shown in the image below.TOP Layer
Bottom Layer
Software Design Descriptione2studio is an integrated development environment based on Eclipse for Renesas MCUs.In addition to the powerful code editor that comes with Eclipse, e2studio also provides rich extension capabilities.e2studio covers the entire development process, from downloading sample code to debugging.Renesas’s Flexible Software Package (FSP) provides a fast and generic approach to building secure connected IoT devices using Renesas RA microcontroller (MCU) series.FSP provides peripheral device drivers suitable for production environments, Amazon FreeRTOS, and middleware stacks to leverage the FSP ecosystem.e2studio Development Environment Download and Installation (Partial)Step 1. Log in to Renesas official website:https://www2.renesas.cn/cn/zh/, select “Products → RA MCU”
Step 2. After entering the RA introduction page, click to select the Flexible Software Package (FSP)
Step 3. Click “Download Latest Version” as shown below:
Step 4. Click to download all included files, including the e2studio installation package and FSP software package
Step 5. Open the .exe installation program and follow the prompts to install.After installation is complete, run e2studio and view the FSP user manual, click “OK” to complete installation and run. The installation ends here, and software development can begin.
Application Scenario Diagram
Product Physical Diagram
Display Board Photo
Solution Block Diagram
Front Image of the Demo Board (MCU Board)
Front Image of the Demo Board (Sensor Board)
Core Technical Advantages
1. Features HMI application functionality, supports TFT-LCD screens, built-in JPEG Codec, and 2D Drawing Engine.2. Features Ethernet interface functionality.3. Supports encryption functions such as:AES (128/192/256), SHA1/SHA224/SHA256, 3DES/ARC4.4. 64KB DataFlash for data storage (similar to EEPROM).5. Up to 21 pins support 5V voltage input/output.
Solution Specifications
1. Processor:ARM Cortex M4 32-bit processor, (R7FA6M3AH2CFB LQFP-144).2. Operating Temperature:-40℃ to +85℃.3. Screen Specifications:2.4-inch resistive TFT-LCD screen.4. Screen Resolution:240 × 320.5. Supported Interfaces:Ethernet interface, TFT-LCD screen interface, Arduino interface, PMOD interface.6. Programming Method:J-Link SWD interface.7. Development Environment:Renesas e2studio with FSP.
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