[i=s]This post was last edited by kikiwu on 2019-3-26 18:06[/i] [align=center][size=5][color=#ff8c00][b]DIY Indoor Air Quality Monitor[/b][/color][/size][/align] [align=right][size=4][color=#ff8c00][b...
After unpacking, JTAG and UART USB were both plugged into the USB port of the computer. The screen was not lit, but the LED was red. After installing the driver CP210x, the red light turned green. The...
Recruiting embedded software development engineers, 150,000 to 300,000 yuan per year, located in Qingdao. Job description: 1. Central air-conditioning embedded software design; 2. Program architecture...
MR-J2S-20B is a 200W driver with a white shell and looks very beautiful.I disassembled a machine with a problem. When it was powered on, it reported an E9 error. According to the error code, there sho...
Due to the price, NandFlash is more advantageous than NorFlash for storing large amounts of data. However, programs cannot be run directly on NandFlash, so S3C2440 provides a mechanism where the sy...[Details]
LED display circuit
Figure 1 Segment digital tube
LED display circuit
In Figure 2, the 80C51 microcontroller is used. The capacitors C1, C2 and CRY1 form the clock oscillation circuit. Th...[Details]
With the change of lifestyle and the increasing work pressure, sleep disorders have gradually become a prominent health problem. Sleep Apnea Syndrome (SAS) is a common sleep disorder. Long-term sle...[Details]
Do you know how an oscilloscope probe is connected to an oscilloscope? Since there are many types of oscilloscopes and probes, we take a mixed-signal oscilloscope (MSO) as an example to introduce the...[Details]
Development board: FL2440 Core chip: S3C2440 (ARM9) Ultrasonic module: HC-SR04 Working principle of ultrasonic module: There are four pins in total, VCC is connected to 5V, GND is connected to ...[Details]
Companies developing medical diagnostic equipment face the challenge of providing consumers with high-quality and affordable products. The ability to reduce the size of these medical devices and im...[Details]
1 Introduction
As an energy storage component of electric vehicles, the power density, storage capacity, and safety of batteries not only determine the mileage and speed of electric vehi...[Details]
In the past,
LCD
splicing curtain walls could not
be widely used in large-scale monitoring systems due to the large splicing gaps. However, LCD
panel
technology
is gradually ...[Details]
I have been studying arm on and off for 2 months. Now I feel that I understand the boot process of arm in Nand flash mode. Now I come here to record it to express my extremely happy mood. Without fur...[Details]
Introduction: Basic knowledge of AVR microcontroller learning and development: 1. Introduction to AVR development tools and establishment of development environment 2. Explanation of basic knowledge ...[Details]
The buffer amplifier is converted into a fixed level signal, and then sent to the bandpass filter after denoising. In the compression and expansion working mode, the filter output signal should be ...[Details]
iQOO U3x 5G was released in March this year, equipped with a Snapdragon 480 5G processor. Recently, the brand released a new model equipped with a 4G MediaTek chip, which has reduced some configurati...[Details]
I saw the disassembly of the Xiaomi QiJi electric folding bicycle on ifixit . This is also their first time to disassemble a means of transportation, so I share it with everyone here. For man...[Details]
AWPLC is a PLC system independently developed by ZLG (compatible with IEC61131-3). This article uses a revolving lantern program implemented by a timer to demonstrate how to use AWTK and AWPLC to...[Details]
Universal Robots (UR) and Mobile Industrial Robots (MiR) have announced the opening of a new Cobot Hub in Odense, Denmark’s robotics capital. UR and MiR, two of the most dynamic and dynamic companies...[Details]