➀ Renesas launches RL78/L23 MCUs with dual-bank memory for over-the-air updates, targeting smart home appliances and IoT applications；

➁ Features include a low-power 16-bit core, LCD controller with 30% reduced current, touch support (up to 36 keys), and 1.6-5.5V operation；

➂ Designed for 5V industrial use and battery-powered systems, with safety compliance and dynamic power-saving modes.

➀ This article introduces a soil moisture indicator designed for gardening applications, which uses an Arduino Nano and an LCD display to indicate the moisture level of the soil.

➁ The device categorizes soil moisture into four levels: dry, humid, wet, and 'sensor not in soil'. It provides a cost-effective solution for monitoring soil moisture with minimal human intervention.

➂ The project includes detailed instructions for building the indicator, including the necessary components like the Arduino Nano, Soil Moisture Sensor, and LCD I2C, along with the corresponding circuit diagram and source code.

➀ Renesas Electronics Corporation has launched a new group of ultra-low-power MCUs named RA4L1, featuring advanced security and segment LCD support.

➁ These MCUs are powered by an 80-MHz Arm Cortex-M33 processor with TrustZone and consume minimal power, making them ideal for IoT applications like water meters, smart locks, and sensors.

➂ The MCUs offer a range of peripherals and come in various compact packages, supported by Renesas' Flexible Software Package (FSP) for simplified application development.