This solution implements the functions of monitoring, display and data uploading for the indoor gas environment. The system collects raw environmental data via temperature, humidity and VOC sensors, and performs algorithmic fusion processing on multi-source data. The processed results are displayed locally in real time on a segment-type LCD screen and can be uploaded to a cloud server via wireless communication. Powered by a rechargeable lithium battery, the device ensures long-term stable operation even with the wireless function continuously enabled.

• Feature
  

  • Ultra-low power consumption, including operating mode and standby mode

  • Built-in rechargeable lithium battery with charging function

  • Built-in 4 COM × 32 SEG segment LCD driver

  • Supports online temperature and humidity detection

  • Supports online VOC gas detection

  • Supports wireless data transmission function

• Specifications
  

  CM2U54 (32-bit Arm® Cortex®-M23)

  • Operating frequency up to 40 MHz

  • Built-in segment LCD driver

  • Built-in charge pump driver (3.0 µA in Power-down mode)

  • Normal Run Power:

  -67 µA/MHz (LDO mode)

  -36 µA/MHz (DC-DC mode)

  • Ultra-low Power:

  -Standby Power-down (with RAM retention): 0.7 µA

  -Deep Power-down (@ 25°C): 0.3 µA

  • Supports AES-128/ 192/ 256 encryption

  • Operating voltage: 1.75 V to 5.5 V

  • Operating temperature: -40°C to +105°C

•  Specifications