Following the previous post New Uses for Old Phones (1) - Basic Methods , the next step is to install F-Droid ( https://f-droid.org/ ). F-Droid is a FOSS (Free and Open Source Software) store on the A...
Due to the impact of the epidemic, foreign trade orders have been cancelled. The existing inventory of PD fast charging (27W) needs to be cleared at a special price. There are 1,200 units in stock. Bo...
1) Reset interrupt (RESET) has the highest priority
2) Non-maskable interrupts/exceptions: all software interrupts and two external interrupts RS and NMI.
3) 12 maskable hardware interrupts (INT4-INT1...
When measuring AC voltage or current, have you ever doubted the measurement results? When you are very sure of your circuit, you may doubt the accuracy of the multimeter measurement. So what is wrong...[Details]
The intelligent IED
(Intelligent Electronic Device)
built by the designers of this article based on DSP and CPLD
can collect multiple signals at the same time and obtain key da...[Details]
Lynk Labs Inc. filed a lawsuit in the Western District Court of Texas on Tuesday local time, accusing Samsung Electronics of infringing its U.S. Patent No. 11019,697 (the "697 Patent"), claiming that...[Details]
As
LED
lighting, it needs a power supply that can drive small lighting products such as light bulbs and high-power products such as large lighting products such as street lamps. In a...[Details]
1 Introduction The memory of MCS-51 has three spaces: on-chip RAM, off-chip RAM and ROM. MCS-51 microcontroller has four storage spaces in the physical structure 1. On-chip program memory (on-chip ...[Details]
Gas turbine flowmeter has the advantages of high sensitivity, good repeatability, wide range ratio and high precision. It has been widely used in natural gas trade settlement measurement and even as a...[Details]
Apple's M1 Pro and M1 Max chips have been officially released and are installed in the latest MacBook Pro 14/16 notebooks. The M1 Max chip integrates a 10-core CPU and a 32-core GPU, with a tot...[Details]
1. Power filter
The core part of the EB lamp power supply is a DC/AC inverter, which generates 2.65MHz high-frequency power to light the gas discharge bulb, which will bring electromagn...[Details]
1. Startup Process Description Let's talk about the startup process. The first source is to turn on the power. I believe everyone knows this. After the CPU is powered on, the SP pointer points to 0x...[Details]
The drive motor system is one of the three core systems of electric vehicles and is the main drive system for the vehicle. Its characteristics determine the main performance indicators of the vehic...[Details]
OFweek Cup · OFweek 2023 China
Robot
Industry Annual Selection (abbreviated as OFweek Robot Awards 2023) is jointly organized by OFweek, China's high-tech industry portal, and its authorita...[Details]
The Universal Synchronous Asynchronous Receiver/Transmitter (USART) provides a flexible method for full-duplex data exchange with external devices using the industry standard NR asynchronous ...[Details]
The inductor of a switching power supply is an important component of a switching power supply device. It works on the principle of electromagnetic induction. Its function is to block AC and pass DC...[Details]
Boost DC/DC converters are mainly used in occasions with small output currents. As long as 1~2 batteries are used, a 3~12V operating voltage can be obtained. The operating current can reach tens of mi...[Details]
Ultra-low power MCU development technology based on MC9S08Lx design
The MC9S08
Lx series is an ultra-low power MCU with integrated LCD driver and increased ADC accuracy for medical and...[Details]
DIY/Open Source Hardware
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