With the release of the beta version of ESP-IDF 4.x, MicroPython for ESP32 is now divided into two versions: ESP-IDF v3.x and ESP-IDF v4.x:Firmware built with ESP-IDF v3.x, with support for LAN and PP...
Masters, the gasoline pump used in Mercedes-Benz cars currently has three wires UVW coming out of the fuel pump computer to directly control the operation of the three-phase fuel pump. I took it apart...
I usually compare the performance of MCUs by calculating pi, because Python supports large integer operations, and pi calculations happen to use large integers, which can initially reflect the integer...
I don't use a DCDC drive circuit like this H-bridge. What is the principle of this? Is there any difference between it and the general step-up and step-down?...
How to measure the signal of positive and negative 1.5V using a single power supply system? If the signal changes quickly, it can be measured through coupling. But if it is a signal that changes slowl...
introduction
The daily services of the library involve the management of human and material flows, and require a large amount of reader and book identification, access control, statistics, and...[Details]
According to TrendForce research, benefiting from the demand for new iPhones to stock up on Apple's supply chain, the output value of the top ten wafer foundries increased in the third quarter to US$...[Details]
Technology creates value. Recently, good news came from the China Electric Power Research Institute that the Sineng Electric inverter successfully passed the high and low voltage ride-through test ...[Details]
This is an old news about autonomous driving. The story we are going to tell happened at the end of 2017. Although two years have passed, the topic of autonomous driving is still very popular. The ...[Details]
The 2019 Berlin International Consumer Electronics Show (IFA2019) will open on September 6 in Berlin, Germany. During last year's IFA, voice recognition and artificial intelligence were the highlight...[Details]
Phase noise No oscillator is absolutely stable. Although we cannot see the actual frequency jitter of the spectrum analyzer's local oscillator system, we can still observe obvious manifestations of l...[Details]
1. First, install the CH340 driver 2. Connect as shown below 3. Select the correct serial port 4. Configure mcuisp as shown below Note: DTR is low level, RTS is high level when entering ...[Details]
At present, the heat dissipation design of LED package substrate is roughly divided into two parts: heat conduction from LED chip to package body, and heat transfer from package body to the outside...[Details]
Taiwan regulators are said to be about to issue new rules to prevent local technology companies from selling their subsidiaries or other assets in mainland China, the latest move by the local governm...[Details]
In an aluminum alloy die-casting factory in Chongqing, newly produced products are being orderly placed on the production line, waiting for quality control before leaving the factory. Unlike the trad...[Details]
This has to start with the naming rules of the instruments . Why can't gas chromatography-mass spectrometry be called mass spectrometry-gas chromatography? Why can't flow injection inductively coupl...[Details]
The GPS automatic time-correcting tower clock control system studied in this paper uses the STC89C51 single-chip microcomputer as the controller, and is composed of a GPS receiver, a servo motor,...[Details]
In 1970, people discovered that LEDs have an even better advantage than long life: they can be switched on and off very quickly, up to kHz. If the receiver's amplifier is modulated to the transmitt...[Details]
On December 6, the latest data released by South Korean market research organization SNE Research showed that from January to October this year, the global installed capacity of registered electric v...[Details]
A soft starter is a power electronic device used for motor starting. It can effectively reduce the current shock during starting, thereby protecting the motor and the power grid. However, in some c...[Details]