Renesas EU045-RAQEV1Z

Overview

EU045-RAQEV1Z from Renesas Electronics is an evaluation kit for refrigerator air quality sensing, integrating the ZMOD4450 gas sensor, HS3001 humidity/temperature sensor, ISL9122A buck/boost regulator, ISL9301 Li-ion charger, RA4W1 Bluetooth 5.0 LE MCU, and RL78/G13 sensor processing MCU. It supports wireless Qi charging, battery-powered operation, and real-time environmental data visualization via smartphone app.

For engineers reviewing the EU045-RAQEV1Z datasheet, EU045-RAQEV1Z pinout, EU045-RAQEV1Z application, or EU045-RAQEV1Z equivalent, this page delivers verified technical context, key specifications, supply availability, manufacturer background, and targeted FAQs - all grounded in Renesas' official EU045 Quick Start Guide (R30QS0003ED0200 Rev.2.00) and Hardware User's Guide (R30AN3066ED0200).

Technical Context

The EU045-RAQEV1Z implements a dual-MCU architecture: the RL78/G13 performs sensor fusion and calibration for the ZMOD4450 (refrigerator odor detection), HS3001 (±1.5% RH / ±0.2°C accuracy), and optional ISL29020 ambient light sensor, while the RA4W1 handles Bluetooth 5.0 LE communication, secure pairing, and OTA firmware updates. Both MCUs operate under ISL9122A ultra-low IQ regulation (2.5–5.5 V input, 1.8–3.3 V output).

Sensor data is transmitted via Bluetooth to the "Renesas Bluetooth LE Puck" app (iOS/Android), which auto-detects kit variant, displays real-time IAQ metrics (TVOC, eCO₂-equivalent), logs time-series trends, and exports tabular data - all without manual pairing or configuration. The enclosure features a gas-permeable membrane enabling IP54-level ingress protection.

Key Specifications

Availability

EU045-RAQEV1Z is available at Aetrix Electronics and suitable for refrigerator air quality monitoring, smart appliance development, and cold-chain environmental validation requiring stable component supply, rapid prototyping support, and field-deployable sensor evaluation.

Supply support for EU045-RAQEV1Z includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Renesas Electronics Corporation is a global semiconductor leader headquartered in Tokyo, Japan, specializing in microcontrollers, analog, power, and connectivity solutions for automotive, industrial, and IoT applications.

The EU045 series belongs to Renesas' Environmental Sensing Solution Kits product line, designed to accelerate development of certified, production-ready air quality systems using factory-calibrated ZMOD gas sensors and integrated reference firmware stacks.

FAQ

What is the primary function of the EU045-RAQEV1Z evaluation kit?

The EU045-RAQEV1Z evaluation kit is a complete, battery-powered reference design for refrigerator air quality monitoring. It integrates the ZMOD4450 gas sensor optimized for detecting food spoilage odors, along with HS3001 humidity/temperature sensing, Bluetooth 5.0 LE telemetry via RA4W1, and dual-MCU sensor processing. EU045-RAQEV1Z enables immediate out-of-box testing using the Renesas Bluetooth LE Puck app without firmware flashing or hardware configuration.

Which gas sensor is included on the EU045-RAQEV1Z board?

The EU045-RAQEV1Z board includes the ZMOD4450 gas sensor module, specifically calibrated for refrigerator environments to detect volatile organic compounds associated with spoiled dairy, meat, and produce. Unlike the ZMOD4410 (indoor) or ZMOD4510 (outdoor), the ZMOD4450 uses a unique algorithm and sensor coating optimized for low-temperature, high-humidity refrigeration conditions - a distinction confirmed in Renesas' EU045 Hardware User's Guide (R30AN3066ED0200).

Does the EU045-RAQEV1Z support wireless charging?

Yes, the EU045-RAQEV1Z supports Qi-standard wireless power transfer via its integrated ISL9301 Li-ion battery charger. When placed on a legacy Qi-certified charging pad, the green LED illuminates during charging and extinguishes upon full charge. USB cable charging is also supported. This dual-input capability ensures uninterrupted operation during long-term environmental logging - a core design requirement for EU045-RAQEV1Z in cold-chain validation use cases.

How does the EU045-RAQEV1Z communicate sensor data to a host device?

The EU045-RAQEV1Z communicates sensor data exclusively via Bluetooth 5.0 LE using the RA4W1 MCU. It broadcasts preprocessed IAQ metrics (including TVOC index and eCO₂-equivalent values) to the "Renesas Bluetooth LE Puck" smartphone app, which auto-detects the kit variant and requires no manual pairing. No UART, USB, or wired interface is exposed - all data flow is handled wirelessly through standardized BLE GATT services defined in Renesas' software stack for EU045-RAQEV1Z.

Is ambient light sensing enabled on the EU045-RAQEV1Z by default?

No, ambient light sensing is not enabled on the EU045-RAQEV1Z by default. The ISL29020 ambient light sensor was fitted only in early production lots (S/N: A20* and A21*), as noted in the EU045 Quick Start Guide Rev. 2.00. Current EU045-RAQEV1Z units omit the ISL29020; sensor functionality is limited to ZMOD4450 (gas), HS3001 (humidity/temperature), and system-level battery voltage/charge state reporting.