"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...
Microchip's PIC18F46J50 is a low-power, high-performance 8-bit USB microcontroller (MCU) using nanoWatt XLP technology. The current in deep sleep mode can be as low as 13nA, the operating voltage i...[Details]
As cellular phones become more advanced, the power consumption of the system during operation and the power consumption during standby are also increasing. Therefore, the power management design of...[Details]
Two simple circuits are implemented to drive two LEDs from a battery powered microprocessor.
This design is based on a circuit that uses three resistors and a microprocessor I/O pin as an input h...[Details]
Microcalorimetry
is used to determine energy relationships. Microcalorimetry techniques are often required when performing calorimetric experiments with small sample sizes or slow heating rat...[Details]
Since the No. 4 blast furnace of Handan Iron and Steel was put into operation in 1993, its external equipment has been seriously aged, and the original PLC control system TDC3000 of the hot blast furn...[Details]
12v Lead Acid batteries used in trucks, cars, RVs and uninterruptible power supplies are usually rated at 12V. This circuit monitors the battery, the charge and discharge curves, gives the cu...[Details]
Motors are important products that convert electrical energy into mechanical energy to achieve automation, and they are widely used in industrial control, medical electronics, white a...[Details]
Only a small number of LED manufacturers can produce high-quality LEDs. For applications that are only used for simple indication, low-quality LEDs are sufficient. However, high-quality LEDs must...[Details]
System Overview
The system consists of a signal preprocessing circuit, a single-chip computer AT89C2051, a systematic LED display module, a serial port data storage circuit and system software...[Details]
1. Introduction
With the increasing popularity of fully automatic washing machines, consumers have higher and higher requirements for their environmenta...[Details]
introduction
Steam turbines are driven by high-temperature and high-pressure steam generated by boilers to run at high speed. They are key power equipment in thermal power plants. The emergenc...[Details]
As the global LED market demand continues to increase, my country's LED industry will face huge opportunities in the future. However, the core LED technology and patents are basically monopolized b...[Details]
One in five car failures are caused by batteries, a problem that will become more serious in the coming years as electric-by-wire, start/stop engine management and hybrid (electric/gas) vehicles be...[Details]
Currently, the commonly used solar cell technologies include monocrystalline silicon solar cells and polycrystalline silicon thin-film solar cells. Production process: Monocrystalline silicon solar...[Details]
DCDC means DC to DC (conversion of different DC power values). Anything that meets this definition can be called a DCDC converter. Specifically, it means converting the input DC into AC through a s...[Details]