The combination of Renesas’ ZMOD4410 indoor air quality sensor, HS3003 temperature and humidity sensor, and RA4W1 microcontroller (MCU) enables users to detect gases in the bathroom. Odor levels, temperature and humidity values can be monitored through a handy device with Bluetooth® 5.0 Low Energy (LE) communication. The RA4W1 is a 32-bit MCU with Bluetooth 5.0 Low Energy and is very suitable for IoT endpoint devices. All the power on the sensor board is provided by the ISL9001A high performance LDO and Li-ion battery. The ISL9301 is a high input voltage charger with a power path management charger for single-cell Li-ion/Polymer batteries.

System Benefits:

  • Renesas MCU with Bluetooth 5.0 Low Energy controls the system and wireless communication
  • High performance and high input voltage charger with low input voltage/high PSRR LDO
  • The ZMOD4410 gas sensor module is a software configurable platform used for indoor air quality applications



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CN273 LDO LDO LDO Charger Charger Charger Gas Sensor Gas Sensor Gas Sensor Right arrow bracket Double arrow bracket CN273 CN273 CN273 3.3V 3.3V 3.3V Humidity Sensor Humidity Sensor Humidity Sensor Double arrow.37 Double arrow.134 Right arrow.36 USB Sheet.226 Sheet.227 Sheet.228 Sheet.229 Sheet.230 Left arrow 1pt.123 Battery Can.166 Sheet.259 Sheet.260 Sheet.261 Sheet.262 Sheet.263 Sheet.264 Sheet.265 Sheet.266 Sheet.267 Touch Key Touch-Key Touch Key Touch Key Touch Key Sheet.272 Sheet.273 Sheet.274 Sheet.275 Sheet.276 Sheet.277 Sheet.278 Sheet.279 Sheet.280 MCU MCU MCU MCU Block.93 GPIO GPIO Block.94 I2C I2C Block.95 CTSU CTSU Connected signals arrow.333 Connected signals line.399 Connector Arrow.329 Connected signals arrow.333.290
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