Smart Study Room Based on Raspberry PiAuthor: EEWorld-eew_deadlock
1. Introduction of the workThe idea of this work originated from the selection and management of multiple study rooms. This work is b...
French company recruits 1. Linux embedded experience 3-5 years or more 2. Proficient in Linux C 3. Fluent in spoken English, preferably in the field of mobile phones If interested, please contact: bj@...
When modifying the board layer in the layout cross section, an error message appears: E- *Error* _fpUtilGetMaterialData: argument #1 should be a string (type template = "t") - nil. Cannot modify. How ...
Completed the design and PCB drawing of HSMC adapter board,And it has been sent to the PCB manufacturer for board making.The board is mainly connected to the HSMC interface on the development board, a...
A project requires a backup rechargeable battery to ensure 24 hours of operation. The system voltage of 5V may be interrupted at any time. The backup battery is 3.7V. In this case, how to manage the b...
Recently, the "Panda Burning Incense" (Worm.WhBoy.h) worm is in a period of rapid mutation. From November to now, the number of mutations has reached more than 10. The speed of mutation and the wide r...
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]
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]
Google's driverless technology is not only an eye-catching technology, but also a subversion of the car usage model.
Those who have watched anti-terrorism films and TV dramas must have been im...[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]
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]
Power management solutions for today's portable application processors are becoming increasingly integrated. Total power consumption, standby and sleep current consumption affect battery size, bill...[Details]
Overview
As a remote network communication control method with advanced technology, high reliability, complete functions and reasonable cost, CAN-bus has been widely used in various automa...[Details]
Problems such as the depletion of natural resources, air pollution, traffic congestion, and rising fossil fuel prices have forced societies and individuals to seek alternative means of transportati...[Details]
In today's body control module (BCM) designs, savvy engineers are moving away from electromechanical relays whenever possible. Their next step is to eliminate fuses. But is eliminating fuses a nece...[Details]
Motors, especially those with brushes, generate a lot of noise. This noise must be dealt with if the appliance is to meet the requirements of EMC standards. The means to solve EMC are nothing more ...[Details]
The TPS92210 is a single-stage LED lighting pulse width modulation (PWM) controller. The TRIAC dimmable solution not only regulates the LED current, but also achieves a power factor close to 1. The...[Details]
To understand how and why OLED power supply affects display image quality, you must first understand OLED display technology and power supply requirements. This article will explain the latest OLED...[Details]
introduction
Incandescent bulbs can emit a variety of light, but in specific applications, only green, red, and yellow light are usually needed - such as traffic lights. If an incand...[Details]
Liquid crystal display (LCD) panels have a wide range of applications, from small portable electronic devices to large fixed devices, including digital cameras, laptops, personal data assistants, d...[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]
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