MSP430 is used as the core of this system. The overall structure and function of this system is that the handheld instrument is used as the host computer, and the MSP430F149 microcontrollers in several (less than 32) greenhouses are used as the slave computers, and wireless data communication is used in between. As shown in Figure 1, the MSP430F149 microcontroller in each greenhouse is responsible for collecting environmental parameters such as temperature, humidity, light intensity and carbon dioxide concentration in the greenhouse, and transmitting them to the host computer through the wireless data module. The host computer compares, analyzes and calculates the transmitted environmental parameters with the optimal environmental parameters set in advance for each greenhouse through the software developed by us, and sends corresponding control instructions to the MSP430F149 microcontrollers in each greenhouse.
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