MSP430 Single Chip Microcomputer Research Articles

Design of Temperature Measuring Device in Student Dormitory Based on MSP430

Aiming at the phenomenon that the temperature of each dormitory is different in winter due to many factors in the dormitory of northern colleges and universities, this paper puts forward a simple and convenient dormitory temperature measurement device. The device takes an MSP430 single chip microcomputer as the control core, collects ambient temperature data through temperature sensor DS18B20, collects battery voltage with AD, and displays the collected battery voltage and ambient temperature through an OLED display screen. At the same time, according to the temperature measured by the temperature sensor, the device can output PWM to control the speed of the motor and simulate the intelligent temperature control fan. The experimental data shows that the device has high accuracy, is easy to use, and is easy to implement.

Precise Control of Screw Stepping Motor Based on MSP430 Single Chip Microcomputer

Screw stepping motors are widely used in many high-precision fields including manufacturing, precision calibration, and precision positional movement. Hence, research on the precise control of the screw stepping motor has important value in engineering application. In this paper, an ultra-low-power 16-bit MSP430F437 single chip microcomputer is used as the processor, combined with the subdivision drive system technology; the host computer is programmed with C#, and the communication between the host computer and the single chip microcomputer is established through Bluetooth, and a human-computer interaction interface is well established; the host computer sends a command to the single chip microcomputer to drive the screw stepping motor so as to control the speed and displacement of the load motion driven by the screw stepping motor.

Research of a high voltage and high value resistors standard device

With the continuous increase of voltage class and the rapid development of electrical equipment, we need to design a new kind of intelligent high voltage and high value resistors standard metering device which can be used to a much larger range to complete daily verification work. Based on MSP430 single-chip microcomputer, this paper designed the temperature and humidity control module and the high voltage measurement module that the measuring range can be automatically switched. By using this standard device, the measurement of voltage and resistance can reach separately to 10 kV and 200GΩ. At last by measuring the voltages and resistances and testing the temperature and humidity control system, it has indicated that the high voltage and high value resistors standard metering device in this paper meets the requirements.

Develop an unmanned aerial vehicle based automatic aerial spraying system

To perform plant-protection operations, an unmanned aerial vehicle (UAV) based automatic control spraying system was designed in China. The system used a highly integrated and ultra-low power MSP430 single-chip micro-computer with an independent functional module. This allowed route planning software to direct the UAV to the desired spray area. The test results of route precision showed that in a 3–4m/s crosswind, route deviations were around 0.2m. The result of multiple-spraying swath uniformity tests showed a minimum coefficient of variation of 25% when flying at a height of 5m with a spraying swath of 7m and a wind speed of 0–2m/s. When the spraying swath was 9m or 5m, the coefficients were 34% and 41%, respectively. Spray uniformity for these UAV tests were superior to the Standard Requirement for ultra-low volume spraying variation coefficient, 60%.

The Cloud Terminal Online Monitoring System of UPS Battery Performance based on MSP430 MCU

Aiming at some problems in the process of UPS battery real-time monitoring, on the basis of the cloud terminal technology is proposed in this paper, a new method of remote online monitoring, and based on MSP430 single chip microcomputer, combined with modular guiding ideology, in order to improve the UPS battery remote monitoring automation as the core, through the reasonable design of hardware structure, the implementation of UPS battery on-line real-time monitoring of voltage, current and temperature. At the same time, the system based on ADO database access technology and C++ programming to complete the data management, human-computer interaction, and system control, by the cloud terminal implementation monitoring system data transmission between lower place machine and super-ordination machine. Practice has proved that the technology security and stability, has the very good practical and promotional value.

Design of UPS Battery Remote Monitoring System

UPS battery remote monitoring system based on MSP430 single chip microcomputer design, using modular thinking as the core to build the overall structure, to realize the battery voltage, current and temperature of the online real-time monitoring through the acquisition module in the aspect of hardware, and putting forward resistance measurement method that based on ac injection method and phase lock amplifying method; Using software to implement the UPS battery fault information alarm function through the overall process design.

Design and Implementation of the PTZ Control System Based on MSP430 Single Chip Micyoco (SCM)

This paper elaborates the control of environmental factors in the modern industry and agriculture, and according to the problem that the temperature and the humidity is hard to control automatically, this paper puts forward the design of the greenhouse automatic control system based on MSP430 single chip microcomputer. This design mainly introduces the overall design scheme of the automatic control system, and the use of the properties of various hardware based on MPS430, which mainly include temperature transmission sensor DS18B20 and the humidity transmission sensor CHR01. And then use the environmental control factor algorithm and numerical conversion fuzzy algorithm, so as to realize the temperature and humidity control system.

Research on Digital Phase Difference Measuring Instrument

The paper presents the digital phase measuring instrument based on MSP430 single-chip microcomputer. The instrument adopted the technology of DDS to generate sinusoidal signal, and FPGA to achieve phase difference measurement and polarity judgment. The system is composed of a filtering circuit, a phase shifting network, a shaping circuit, matrix keyboard, LCD display module and the frequency is in the range from 200Hz to 10kHz, the phase difference is in the range of-180°~+180 °, the resolution ratio is 0.1°, the absolute error is less than ±2 °, and the relative error is less than ± 3%.

Design of DSP Video Image Processing System Control Software

In order to realize the DSP Video Image Processing System works well in the highlight environment, the system control software is designed. In this control part, the ultra-low power MSP430 single chip microcomputer (MCU) is the core, which can be programmed to control the DSP Video Image Processing System, the video A/D converter and the highlight protection circuit by the Inter-Integrated Circuit (I2C) bus. The Image Processing algorithm models can be selected. Whether the highlight protection circuit is turned on or not depends on the comparison result of the environment light and the MCU light threshold. The control program code has been debugged and tested through the MSP development board and the IAR C-SPY debugger. The result shows the DSP Video Image Processing System Control Software is ideal.