RL78/G14 Fast Prototyping Board

AI-generated Summary: Modbus communication over UART is implemented using the RL78 microcontroller and Renesas RS-485 transceiver, supporting both Modbus ASCII and RTU modes. The system uses GPIO to control send/receive permissions and TAU0 timers to measure intervals between characters and frames, ensuring proper timing in communication. The network operates in a single-master/multi-slave configuration with up to 247 slaves, each having a unique address. The document details hardware configurations, UART communication settings, supported function codes, and interrupt handling for both master and slave modes. It also includes software structure, constants, variables, and instructions for running the system in various environments. PCB design files typically bundled include BOM, schematic, and Gerber files.

AI-generated Summary: Control LED brightness by reading ambient light sensor values via analog input and adjusting PWM output accordingly using RL78/G14 Fast Prototyping Board. The program uses Arduino language and switches load resistors to handle a wide sensor dynamic range. It reads sensor data on switch press or every 10 seconds, converting current to voltage for A/D conversion. PWM duty ratio controls LED brightness. The document details peripheral functions, program execution environment, and Arduino API library functions for digital I/O, time control, analog I/O, and I2C communication. It includes hardware configuration, software structure, flowcharts, and sample code for implementation.

AI-generated Summary: Control temperature and humidity measurement using an Arduino language program on the RL78/G14 Fast Prototyping Board via the I2C bus operating at 80 kbps. The system reads data from the HS3001 sensor and displays results on an HD44780-compatible LCD with two 16-character lines. The program manages sensor communication and LCD display updates triggered by a switch press or timed intervals. Key peripheral functions include digital input for switch reading, I2C communication for sensor and LCD control, and timer units for elapsed time measurement. The Arduino API library functions support pin control, timing, and I2C data transmission and reception. The project structure organizes source files for easy modification and integration within the RL78 development environment.

AI-generated Summary: Sensor data from the Renesas HS3001 Humidity and Temperature Sensor transmits via Bluetooth Low Energy using the RL78/G14 Fast Prototyping Board and RL78/G1D BLE Module Expansion Board. The Host MCU program controls the BLE module through a UART 2-wire connection, managing pairing and security with the Security Library. The document details hardware and software configurations, development environment requirements, communication sequences, and step-by-step procedures for building, running, and verifying Bluetooth communication with smartphones. It also covers the BLE protocol stack API usage and includes application circuit examples.

AI-generated Summary: The RL78/G14 microcontroller interfaces with the Digilent Pmod COLOR sensor to detect and display color information on an OLED screen. It supports sensing red, green, blue, and clear colors with precision, even under varying ambient conditions due to an integrated IR blocking filter. The RL78/G14 Fast Prototyping Board includes a high-performance microcontroller with built-in debugging, Arduino Uno and Pmod interfaces, and extensive expandability. The microcontroller features low power consumption, multiple timers, serial interfaces, A/D and D/A converters, and safety functions suitable for motor control and industrial applications.

AI-generated Summary: The RL78/G14 microcontroller interfaces with the Digilent Pmod ALS to measure ambient light levels and display the data on an OLED screen using different colors to represent light intensity. Powered by USB (5 V) and operating at 3.3 V, the system uses an 8-bit ADC to convert light sensor voltage into digital values ranging from 0 to 255. The RL78/G14 features low power consumption, high processing speed, multiple timers, serial interfaces, and safety functions, making it suitable for various applications including motor control and consumer electronics. The document details the hardware, software, and system design for prototyping light sensing applications.

AI-generated Summary: The RL78/G14 microcontroller interfaces with the Digilent Pmod MAXSONAR ultrasonic sensor to measure distances from 1 inch up to over 20 feet with high accuracy. Range data displays on an OLED screen using different colors to indicate distance levels, enhanced by a backlight for visibility in dark environments. The RL78/G14 Fast Prototyping Board includes a built-in emulator, Arduino Uno and Pmod interfaces, and full pin access, enabling easy development and debugging. The microcontroller features low power consumption, high processing speed, multiple timers, serial interfaces, ADC/DAC, and safety functions suitable for motor control and industrial applications. The document details specifications, system design, hardware, software, and sample code for implementing the ultrasonic range finder.

AI-generated Summary: The guide explains how to set up an environment for programming the RL78 family microcontrollers using Arduino language, focusing on the RL78/G14 Fast Prototyping Board. It covers installation of integrated development environments (CS+, e2studio, IAR), project folder structures, and execution of Arduino sketches within these IDEs. The document details preparation steps for project startup, including file configuration and IDE-specific instructions to run Arduino programs on RL78 devices.

AI-generated Summary: This document details integrating Bluetooth Low Energy (BLE) and LoRaWAN communication for sensor devices. It explains setting LoRaWAN parameters via BLE from smartphones, sending sensor data to LoRaWAN Gateways, and verifying data on the LoRaWAN Network Server. The setup uses RL78/G14 Fast Prototyping Board, BLE and LoRaWAN modules connected via Pmod interfaces, and a sensor module measuring temperature, pressure, and humidity. It covers firmware updates, device diagnostics, and device management through BLE.