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Care your breathing, A wireless connecting air quality monitoring solution for smart home, based on MediaTek Genio 130A(MT7933) with BOSCH BME688

Date：2025-02-12

We always care about the environment data on interesting domain and try to analyze it. With those data, a sensor plays a major job on consumer market, industry, smart home, even can see on automotive.

 

As talking about environment data on home living, the temperature, humidity and gas quality (Volatile Organic Compounds (VOCs), volatile sulfur compounds (VSCs) and other gases such as carbon monoxide and hydrogen) are crucial to our heath of family. Bring these environment data together with wireless communication technology that comes a high-accuracy and real-time solution for smart home.



 

SAC give a powerful MCU solution for this application which is Genio 130A(MT7933) thanks MediaTek. Genio 130A(MT7933) is a highly integrated single chip that features a high-performance Arm® Cortex®-M33 cores @ 300 MHz with up to 8MB PSRAM and 1MB SRAM, offering feature-rich wireless connectivity of Wi-Fi 6 and BT 5.2 subsystem, also providing SDK that ready for Matter device implementation.

 

An audio subsystem with Cadence® Tensilica® HiFi4 processor support 32KB instruction and 64 KB data cache that ready for Voice Activity Detection (VAD), noise/echo cancellation and keyword detection. Offer local voice command service integrated with Cyberon voice model, or Amazon Alexa intelligent voice assist by connecting to internet.

 

We provide a solution that based on MediaTek Genio 130A(MT7933) as platform offering wireless connectivity, joined Bosch Sensortec BME688 gas sensor that provided temperature, humidity and gas quality monitoring on Smart Home Living. User can gather gas quality and receive notification via smartphone, moreover, has capability of remote control such like turn on air purifier.

MediaTek Genio 130A(MT7933), features:

  • Arm® Cortex®-M33 cores @ 300 MHz.
  • Up to 8MB PSRAM and 1MB SRAM.
  • IEEEE 802.11 1T1R a/b/g/n/ac/ax 5 GHz and 2.4 GHz bands.
  • Up to BT 5.2 subsystem.
  • Audio Cadence® Tensilica® HiFi4 DSP.
  • Hardware crypto engines including AES, DES, 3DES, SHA, ECC, TRNG.
  • Power management unit.
  • Support USB 2.0 OTG feature.
  • Rich interface for peripheral, ex USB、SDIO、SPI master/slave、I2C、I2S、UART、AUXADC、PWM and up to 46 GIPOs
  • Provide FreeRTOS and Arduino SDK with rich examples for time to market.

 

Bosch Sensortec is the technology leader in sensing solutions based on MEMS. Offering product BME688 that features:

  • 0 x 3.0 x 0.9 mm³ package.
  • I2C、SPI interface
  • High-linearity and high-accuracy temperature, pressure and humidity sensors data gathering.
  • Support capability of detection of Volatile Organic Compounds (VOCs), volatile sulfur compounds (VSCs) and other gases such as carbon monoxide and hydrogen in the part per billion (ppb) range.

 

We use MT7933 Arduino SDK, integrated BME688 example project for environment data gathering. Then sending data to smartphone via Wi-Fi provided by MT7933. Following shows the step:

  1. Based on MT7933 Arduino SDK, porting MT7933 Wi-Fi service and BME688 example project.


     
  2. Compile source code and flash image to MT7933 HDK, we can observe that environment data has start transfer.


     
  3. When smartphone has successfully connected to MT7933 HDK, then we can receive temperature, pressure, humidity and gas information and shown on console of smartphone


Reference:

MediaTek Genio 130A(MT7933)

 

Bosch BME688

►场景应用图

►展示板照片

►方案方块图

►核心技术优势

With MediaTek Genio 130A(MT7933) as a high-performance platform, provided capability of Wi-Fi/BT connectivity, also adopting Bosch BME688 for high-linearity and high-accuracy temperature, pressure, humidity and gas sensors data gathering. Offering a best solution for Smart Home Living.

►方案规格

MediaTek Genio 130A(MT7933) 1. Arm Cortex M33 as a high-performance platform. 2. IEEEE 802.11 1T1R a/b/g/n/ac/ax 5 GHz and 2.4 GHz bands. 3. Up to BT 5.2 subsystem. 4. Rich interface for peripheral, ex USB、SDIO、SPI master/slave、I2C、I2S、UART、AUXADC、PWM and up to 46 GIPOs. Bosch BME688 1. 3.0 x 3.0 x 0.9 mm³ package. 2. Environment data gathering with very low power consumption. 3. Provide high-linearity and high-accuracy temperature, pressure and humidity sensors data gathering.

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