;Only display the hour and minute RG_KEY EQU 30H;Store the keyboard value RG_KN EQU 33H;Store the number of buttons for adjusting the year, month, day and week. RG_BT1 EQU 31H; data to be displayed is...
1. Last year, the process operating system RTthread was still very popular. Here, the fans are accelerating innovation and launching new concepts. How about combining arm-m4 and FPGA? Take a look at t...
I just saw a fun thing online, called a sun jar. The principle is very simple. Get a solar panel to charge a NiMH battery, then use a photoresistor to detect the external light, and turn on the LED wh...
I have only been in contact with Zigbee for a short time, but I want to use Zigbee to collect some temperature, humidity, smoke and infrared data. Here, three nodes and a coordinator are used. A probl...
I used to use stm32f103, but now I need to use LM3S8962. I have a TI evaluation board, but I can't download the program using MDK, so I use IAR instead. Since I don't have an IAR project, it's very tr...
[align=left][b]Chapter 7 Buzzer Experiment[/b] In the previous chapter, we introduced the use of STM32's IO port as output. In this chapter, we will use another example to explain the use of STM32's I...
Traditional broadcasting systems generally need to be operated manually at a fixed time, and can only realize one-way broadcasting with few functions. Traditional bell ringing equipment has a singl...[Details]
A single-chip microcomputer is also called a single-chip microcontroller. It is not a chip that completes a certain logical function, but a computer system integrated into one chip. In general, a c...[Details]
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]
1. Circuit composition
The whole circuit consists of two parts:
1. Power saving control circuit
As shown in the figure below. Including delay circuit and drive circuit.
(1) Delay ci...[Details]
1. Introduction
With the growth of parking demand, the scale of parking lots is becoming larger and larger. A lot of research has been done on intelligent parking lots in China, but most of th...[Details]
Do you often have to add brake fluid to your car's brakes? The fact that you need to pump out the brake fluid to make sure there is no gas in the brake fluid line may not be done by the car owner h...[Details]
Converged processors meet scalability requirements
In current embedded system design, solutions based on MCU, DSP, FPGA and ASIC account for more than 90% of the market share. These solutions ...[Details]
For a long time, due to the limitation of hardware conditions, the display devices of traditional small handheld devices such as PDA are usually monochrome LCD, and the user interface is very simpl...[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]
A standard cell
is an electrochemical
cell
used as a voltage reference standard in many electrical standards laboratories
. If properly maintained, standard cells are very stable. The ...[Details]
1 Introduction
PROFIBUS is an international, open, and manufacturer-independent fieldbus standard. It is widely used in manufacturing automation, process industry automation, and automatio...[Details]
0 Introduction
Under normal circumstances, the three-phase power in the power system is symmetrical, and they meet certain amplitude and phase conditions; but when the load changes, the syst...[Details]
Abstract: In order to realize wireless automatic alarm and monitoring of major safety places, based on the basic principle of pyroelectric infrared sensing, a detector for receiving infrared radia...[Details]
This article discusses the six design steps of LED lighting system design in detail: (1) determine the lighting requirements; (2) determine the design goals and estimate the optics; (3) the efficie...[Details]
MCU
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