"CH1" folder: source files and schematics of "Real-time clock chip PCF8583 with RAM memory" in Chapter 1 of this book."CH2" folder: source files and schematics for "Serial I2C Real-Time Clock Chip DS1...
IDE: IAR FOR MSP430 5.4According to the definition in MSP430G2553.hDefinition 1:
#define DEFC(name, address) __no_init volatile unsigned char name @ address; #define DEFW(name, address) __no_init vola...
I want to use LM334 to make a constant current source circuit. Its SMD package is shown in the figure. There are four pins inside that are all V-. Do I need to connect all four pins together? Or can I...
In the hot summer, eating a few pieces of cool and sweet watermelon is a great enjoyment in life. However, the freshly bought watermelon often still has a bit of heat and the taste is not perfect. Wan...
The microcontroller-driven stepper motor circuit I designed requires 5V1.2V12V voltage. How can I manage the power supply? The power supply on the board is externally connected to 12V after being tran...
Are there any friends who are doing design and development in Hangzhou? If you are interested, you can do design together after work. If you are interested, please leave a message below...
No matter which processor you are learning, the first thing you need to understand is the registers and working mode of the processor.
ARM has 37 registers, including 31 general registers and ...[Details]
Aromatic gases are widely present in food, medicine, cosmetics and various daily chemical products, such as snacks, liquor, spices, Chinese herbal medicines, plasters, perfumes, soaps, shampoos, et...[Details]
1 Introduction
Intelligent control instruments are one of the most commonly used controllers in industrial control. They are mainly aimed at a specific parameter (such as pressure, tempera...[Details]
Abstract: Aiming at the needs of coal-rock acoustic emission signal monitoring system, a data acquisition circuit with 24-bit resolution and 16-channel synchronous data acquisition function is desi...[Details]
With the widespread application of new services and technologies in the communications industry, the scale and capacity of operators' network construction are getting larger and larger, and the ris...[Details]
Traditional
virtual instruments
consist of a data acquisition
board
based on PCI bus and
corresponding software. However, with
the rapid development of
computer
network techno...[Details]
Temperature compensated quartz crystal oscillator (TCXO) is widely used as a high-precision frequency source in communication systems, radar navigation systems, precision measurement and control sy...[Details]
The most important components of new energy electric vehicles are power batteries, electric motors and energy conversion control systems. The power battery must achieve high performance such as fas...[Details]
1. Tips for charging UPS for the first time
After purchasing a new UPS, plug the UPS into the 220V mains power grid and charge it for at least 12 hours to ensure that the battery is fully char...[Details]
Measurement compatibility
It is very important to ensure the compatibility between the pressure sensor and its actual application. Before making a pressure sensor selection, the fo...[Details]
Some people think: as long as the program runs well, it doesn't matter how the original program is written. But this is absolutely not the case. Software is not completed in one go, and it is neces...[Details]
1 Introduction
The stepper motor is an actuator of an open-loop servo motion system, which is controlled in a pulse mode and outputs angular displacement. Compared with AC servo motors and DC servo ...[Details]
Stepper motors have been widely used in automatic or semi-automatic equipment such as CNC machine tools, medical equipment, and instruments. The usual way to control stepper motors with computers i...[Details]
In some motion control systems with simple control or low cost requirements, stepper motors are often used as actuators. The biggest advantage of stepper motors in such applications is that they ca...[Details]
New Automobile
Hydraulic Clutch
The hydraulic control system uses almost 100% advanced engineering plastics, which overcomes the shortcomings of the main and branch cylinders of metal clutc...[Details]