MicroPython has added support for NXP i.MX.RT 1000 series chips. i.MX.RT is a high-performance cross-border processor launched by NXP, which has the high performance of MPU and the low cost of MCU. Cu...
I recently used the typical 2030 circuit on the Internet to connect an audio amplifier. There was no problem in the software simulation, but the waveform observed by the oscilloscope was wrong.
As sho...
Let's take a look at some of my personal understanding of HID knowledge points
HID uses endpoints to interact with the PC via USB
Endpoint 0 does not need to be configured and can directly send and re...
Board: beagleboard X15
Uboot version: u-boot-2019.01+gitAUTOINC+8b90adfb16-g8b90adfb16
Question: Where does uboot find the corresponding device tree for the automatic device board? (It seems that ther...
Activity Overview: Click here to view (including activity encouragement and activity learning content)Check-in start and end time for this site: August 27-August 29 (3 days)
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1. Read C...
As an effective tool for measuring precision mechanical quantities, grating sensors have been widely used in the measurement of line displacement, angular displacement, velocity, acceleration and oth...[Details]
Procedures such as infusion and blood transfusion require monitoring the exact amount of liquid, so these applications require an accurate, easy-to-implement method to detect the liquid level. This a...[Details]
I have just started using IAR. The default file generated during compilation is .a90. However, when I download it directly using avr studio, it prompts that it is an informal HEX file and refuses to ...[Details]
Abstract: Knowledge is the most important thing when troubleshooting a complex device. We want and need to know the relevant issues. It includes the correct IC revision number, where to find relevant...[Details]
Compared to the iPhone, the iPad fell out of favor much earlier. Apple subsequently focused its tablets on productivity, launching a number of large-screen, stylus-supported products, and the frequen...[Details]
Standby Mode When SM2..0 is 110, the SLEEP instruction will make the MCU enter the Standby mode. The only difference between this mode and the Power-down mode is that the oscillator continues to work...[Details]
UPS is a special device. It is not only the load of the power grid, but also provides power to the load. Therefore, its EMC design must ensure that it does not cause electromagnetic pollution to ...[Details]
LED is widely used in the industry because of its wide application and reasonable price. Whether it is holiday decorative lights or various lamps used in the home, LED drive circuits are used b...[Details]
Weak links in the system can easily lead to attacks on sensitive information, which has prompted people to urgently seek solutions to provide system security design. Although we rely heavily on softw...[Details]
In the course of more than a century of development, "safety" has become an increasingly important aspect of automobiles. The BIP (Buick Intelligent Performance system) smart driving technology s...[Details]
Helium’s LoRaWAN® network infrastructure has spread across more than 1,000 cities in North America, including Los Angeles, New York, San Francisco, Chicago, Miami and Austin, etc. The world’s first p...[Details]
Lithium batteries are not only the most commonly used energy storage devices in digital devices such as mobile phones and laptops, but their applications in the automotive and aviation field...[Details]
1. I/O Introduction I/O (input/output) refers to input/output ports. Each device has a dedicated I/O address to process its own input and output information. The connection and data exchange betw...[Details]
The nominal AD conversion accuracy of CC2430 microcontroller is 14 bits, which is relatively high among microcontrollers. The most common use of CC2430 is as a sensor, and the principle of the phys...[Details]
According to netizens from "Communications Home", in order to implement the central government's decisions and arrangements, China Mobile Group conducted a special investigation into IoT technology, ...[Details]