Protues simulation example (8051)-PWM temperature adjustment.rar
Protues simulation example (8051)-PCF8574 application.rar
The armed police alarm information system terminal proposed in this article can realize alarm and linkage response, supports two communication modes of Ethernet and WIFI, and can realize mobile sentry alarm and fixed sentry alarm. The voice and display alarm information can be customized by users.
This project designs a wireless multi-functional seat indication system suitable for various occasions. It uses MSP430 microcontroller as the core, CC2500 transceiver as the radio frequency module, and uses the Simplici TI wireless communication protocol to form a small radio frequency network.
This project uses msp430g2231 as the core processing chip, which is composed of sensor acquisition module, wireless communication module, alarm module and host computer; two msp430 launchpads are used to simultaneously collect temperature and humidity through the dht11 temperature and humidity sensor, one as the host and the other as The slave machine uses a wireless communication module to communicate with the host machine, and the communication distance is more than 20 meters; the host machine directly communicates with the computer to transmit the temperature and humidity data to the computer, and at the same time, the upper limit of temperature and humidity can be set for The computer alarm can be used to differentiate between the host and the slave by playing specific songs or recording. In this way, you can first hear the changes in temperature and humidity. If you want to know the specific values of temperature and humidity, you can directly check it through the host computer. Specific temperature and humidity values enable real-time monitoring of the temperature and humidity of greenhouse vegetables, greatly improving the efficiency of large-scale planting.
E-sports source code low-power and low-cost global positioning tracker
The cumulative counter of the packaging line made using a single-chip microcomputer has the function of saving the count value after shutdown and controlling the start/stop of the conveyor belt motor. The circuit is simple, reliable and practical.
In industrial control, it is often necessary to count and measure products to achieve automatic control of equipment. This article introduces a method of making a counter that can set the count value arbitrarily within the display range. Moreover, the current count value, set value, and magnification value will not be lost when power is turned off. It is compatible with a variety of input signals and has a magnification accuracy of up to 5 digits. It is easy to use, stable and reliable, and can be widely used in machine tools, rubber, printing, pharmaceuticals, and cables. , textile, complete sets of control equipment and other industries.
The circuit in this design can control the automatic operation of the water pump motor according to the water level in the water tank and the set time. It has been used for more than a year and has excellent anti-interference and stability. Now I will introduce it to peers and microcontroller enthusiasts. The specific circuit is divided into four parts: microcontroller circuit, power supply circuit, water tank circuit and motor control main circuit.
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