In "Investigating Things to Gain Knowledge 06 - The Water-Dropping Generator", we introduced the water-dripping generator invented by British scientist Kelvin in 1867. Figure (01) is a schematic diagr...
Let me introduce to you the UWB promotion organization - Fira Alliance. In order to promote UWB globally, in August 2019, NXP, Samsung, Bosch, Sony and other companies formed the FiRa Alliance (fine r...
lvgl has been successfully ported before, and can be used to draw some HMI interfaces. Today, an LVGL QR code library is implemented to display some data through QR code. The QR code library can also ...
Overview
The RS485 interface forms a half-duplex network, adopts a combination of balanced drivers and differential receivers, uses shielded twisted pair transmission, and has strong resistance to com...
As shown in the picture, is the Q3Q4 circuit drawn incorrectly? A push-pull circuit should not be drawn like this. Today I saw an old professor drawing it like this, and I was afraid to ask, isn't Q3Q...
1. Hardware Introduction
RVB2601 has built-in the high-performance and secure WiFi4 chip W800 from Lianshengde. W800 is connected to CH2601 via the SPI port (blue frame line) as shown below:2. Softwar...
Here is a simple PIC microcontroller to read/write MMC/SD card program // MMC module connections sbit Mmc_Chip_Select at LATC0_bit; // for writing to output pin always use latch (PIC18 f...[Details]
Opening remarks:
I have encountered such a project before. Due to the shell effect, the customer deliberately rotated the physical position of the LCD screen 90 degrees counterclockwise. In this case...[Details]
LCD1602 has been used since I came into contact with microcontrollers. When I used it before, sometimes I used RS and EN, RW grounded, and sometimes used four-wire mode. But in the end, I found that ...[Details]
In the circuit breaker reliability test equipment, the stability and accuracy of the test power supply is the basis for ensuring the reliability of the test. Otherwise, whether in the circuit breaker...[Details]
This section describes the access timing during instruction execution. The AVR CPU is driven by the system clock clkCPU. This clock comes directly from the selected clock source. The chip does not di...[Details]
GfK, a third-party market research organization, published a long article discussing the situation of the Chinese mobile phone market under the normalization of epidemic prevention, and believed that...[Details]
On June 11, the fifth-generation Xiaomi Mi Band will be officially released. Today, the official released its appearance photo with the slogan "Reignite Power". Xiaomi Smart Life official We...[Details]
Modifying a double potentiometer with a band switch
Use a KCV-11W2D ceramic band switch and 20 resistors, connect them according to the diagram, and you can assemble a practical do...[Details]
On April 21, Nanjing held a video signing ceremony for major investment projects and regional headquarters projects of central enterprises in 2022. Four projects in Pukou District were signed simulta...[Details]
At the "2020 Snapdragon Technology Summit" held today, regarding the separation of Honor from Huawei, Qualcomm President Amon expressed his look forward to cooperating with Honor in the future. Amon...[Details]
Bandwidth is an important specification for current probes. All probes have bandwidth. If you use an incorrect probe bandwidth, you may lose signal details or introduce unnecessary noise into the sys...[Details]
On the evening of March 28, BYD disclosed its 2022 annual report. The announcement showed that in 2022, BYD achieved operating income of 424.061 billion yuan, a year-on-year increase of 96.2%;...[Details]
The world's first rollable automotive display developed by HYUNDAI MOBIS Hyundai Mobis has developed the world's first rollable display for cars, allowing drivers to adjust the size according to d...[Details]
Abstract: Based on the ZigBee parking lot SMS car search system, the location of the vehicle in the parking lot is sent to the owner through SMS, which is convenient for the owner to quickly find ...[Details]
The rapid development of intelligent driving
technology has led to
a huge change in
the automotive industry
. From the initial concept verification stage to the current actual scene im...[Details]