I recently used a chip that can be used for both RS232 and RS485, but I don't know which pins are A and B of RS485. I hope someone can give me some advice....
Do you want to learn how choosing a secure element can reduce project risk and save money? Come join Microchip in an online seminar to learn how provisioning cryptographic keys can significantly reduc...
The real popularity of Wi-Fi began with the introduction of Wi-Fi 4 (802.11n) in 2008. It can be said that since then, Wi-Fi has truly become the most common way for home and corporate Internet access...
[i=s]This post was last edited by szjm-slm on 2022-8-11 11:12[/i]I have been working on a low-power Bluetooth project recently, and I wanted to choose a cost-effective low-power Bluetooth chip. I happ...
[i=s]This post was last edited by bigbat on 2019-1-4 16:24[/i] [font=Verdana, Arial, Helvetica, sans-serif][color=#4b4b4b][size=13px]I want to make a device recently. I plan to use the FSMC function o...
This work is designed with STC15F104W MCU and OLED12864 (IIC), and it is better to match the video uploaded by B station. Search for Thermohygrometer based on DHT11 (UP Lingjing Qinghe) on B station ...[Details]
In engineering practice, connecting the outputs of two gates in parallel to realize the function of AND logic is called wired AND.
Consider the situation shown in the figure below. When the outputs ...[Details]
Joint
Robot
Also called joint mechanical arm or multi-joint robot, the movement of each joint is rotation, similar to human arm. Joint robot is one of the most common
forms of
Indus...[Details]
As of the close of August 21, the three major A-share indices closed higher today, with the Shanghai Composite Index closing at 3380.68 points, up 0.50%; the Shenzhen Component Index closed at 13478....[Details]
With the advent of the digital age, the wave of digital transformation of enterprises has long been unstoppable. When the traditional automobile industry faces the dual challenges of work efficiency ...[Details]
Maskable interrupts and non-maskable interrupts: According to whether they can be masked, interrupts can be divided into two categories: non-maskable interrupts (also called non-maskable in...[Details]
With the popularity of the concept of music mobile phones, mobile phones are no longer a simple tool for making calls. People are increasingly concerned about the sound quality of music playback on...[Details]
Digital multimeter is a commonly used electronic measuring instrument. Its main function is to measure voltage, resistance and current. The product is widely used in many fields. How should users mai...[Details]
Waves exist in nature in all forms, such as ocean waves, earthquakes, sound waves, explosions, sounds traveling through the air, or the natural rhythms of the body. Energy, vibrating particles, and i...[Details]
1. Disadvantages of ungrounded midpoint of transformer (1) Broken wire may cause resonant overvoltage The disconnection of wires, the simultaneous closing of switches and the simultaneous blowing o...[Details]
1. First of all, ESP uses the serial port to communicate with the 51 single-chip microcomputer. The control end can use a mobile phone. However, the 51 single-chip microcomputer and the mobile phone ...[Details]
The automotive electronic rust prevention system is an advanced automotive rust prevention technology that has emerged internationally in the past decade. Different from traditional paint rust preven...[Details]
The circuit
using the logarithmic conversion characteristics of transistor IO and VBE
can only process unipolar signals. As for the frequency response, because the logarithmic element is add...[Details]
The launcher field tester (hereinafter referred to as the tester) is a special field test equipment for air-to-air missile launchers. Before the carrier aircraft is equipped with missiles, the tester ...[Details]
Circuit Function and Advantages
The function of the circuit shown in Figure 1 is to route an RF signal through an IF bandpass filter. The circuit uses three 140 MHz IF SAW filters with differe...[Details]
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