This solution demonstrates an implementation of a cloud-connected gateway module that utilizes Renesas’ RA6M1 MCU with an Arm® Cortex®-M4 core. The system communicates with an external module through common interfaces (RS-485/RS-232) and collected data can be uploaded via the 4G module to the cloud for further analysis. Additionally, the power supply is designed to be flexible for either 12V or 24V inputs for wider adoption in systems.

System Benefits:

  • Features an Arm Cortex-M4 core running on 120MHz for outstanding performance. It integrates 512kB of flash memory and 256kB of SRAM.
  • High performance, low input voltage and high PSRR LDO.
  • Highly efficient, synchronous buck/boost regulator delivering up to 2.5A of continuous output current.
  • Robust communication interface with RS-485/RS-232.



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4:3 ratio Sheet.1 Sheet.2 Sheet.3 Sheet.4 CN232 CN232 CN232 Buck-Boost Regulator Buck-Boost Regulator Buck-Boost Regulator LDO LDO LDO 4G Module 4G Module 4G Module Level Translator Level Translator Level Translator RS-232 Transmitter/Receiver RS-232 Transmitter/Receiver RS-232 Transmitter/Receiver LED LED LED Cloud Input Connector Arrow Connector Arrow.72 Connector double arrow Connector Arrow.74 Connector Line Connector double arrow.77 Connector Arrow.78 Connector double arrow.79 Connector Arrow.80 Connector 1.161 Connector 1.161.82 Connector Arrow.83 Connector double arrow.84 Connector double arrow.85 Connector 1.161.88 Cloud Cloud Cloud 12~24V 12~24V 12~24V 3.8V 3.8V 3.8V 3.3V 3.3V 3.3V RS-485 Transmitter/Receiver RS-485 Transmitter/Receiver RS-485 Transmitter/Receiver Connector Arrow.97 RS-232 RS-232 RS-232 RS-485 RS-485 RS-485 Connector double arrow.100 Sheet.101 Diode - IR Infrared Sheet.103 Sheet.104 Sheet.105 Sheet.106 Sheet.107 Darlington.651 Sheet.109 Darlington.254 MCU MCU MCU MCU UART UART UART GPIO GPIO GPIO UART UART UART
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