I was bored today, and I happened to have a small OLED screen. So I used STM32L053R8 to write a display program. First, let me introduce OLED. The full name of OLED is Organic Light-Emitting Diode, an...
Everyone, I want to buy a PDA, the operating system is Wince, with Ethernet interface and secondary development function. Can you recommend one? What kind of PDA do you use? I would like to learn from...
This is my first time drawing a board. I encountered some minor problems. Please help me. The board is based on a 51 single-chip microcomputer. I found that I had missed a resistor after the PCB file ...
I have an AMD LX800 industrial control board, but the manufacturer doesn't provide BSP. I had to download one from eeworld's download channel. After a simple configuration, I debugged it. After loadin...
Problems with the STM32 USB SPEAKER example programIn the USB speaker program of UM0424, the speaker is used as an OUT endpoint, and the data is sent from the PC to the STM32, and the STM32 is used to...
EE_FPGA learning board is produced and produced by [b]EE senior forum member chenzhufly[/b]! A new round of EE_FPGA learning plan is launched again, and some related learning kits are also provided to...
Today, with the increasing integration of functions, mobile phones can also be used as portable media players (PMP), digital cameras, handheld computers (PDAs), and even global positioning systems ...[Details]
introduction
Throughout the history of automotive lighting, power has always played an important role. Initially, cars only needed headlights to see the road in the dark. Later, other light so...[Details]
Battery life is critical for portable applications. For applications such as smoke detectors, security devices, and thermostats, factory-installed batteries need to last for more than 10 years. The...[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]
I've been studying dot matrix recently. It looks simple, but it takes a while to master it completely! The 8*8 dot matrix hardware circuit I'm making now is like this. The row is driven by 74HC138 + t...[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]
1 Introduction
Ultrasound refers to elastic vibration with a frequency higher than the audible frequency limit (i.e., in the frequency band above 20 kHz). The propagation process of this vib...[Details]
0 Introduction
Ultrasonic waves
are mechanical waves with a frequency of more than 20KHz, and the propagation speed in the air is about 340 m/s (at 20°C). Ultrasonic waves can be gene...[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]
1 What is an LED floodlight?
LED downlights are also called spotlights, projection lamps, and spotlights. They are mainly used for architectural decorative lighting and commercial space lighti...[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]
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]
As the automobile consumer market heats up, the safety performance of automobiles has attracted more attention from consumers. When driving at high speed, tire failure is the most worrying and diff...[Details]
Cloud computing is a network-based computing method. In this way, shared hardware and software resources and information can be provided to computers and other devices on demand. Cloud computing is th...[Details]
With the widespread application of integrated circuits and embedded computers in automobiles, the number of electronic controllers in modern automobiles is increasing. Common ones include electroni...[Details]