[i=s]This post was last edited by lingxin_yuhe on 2022-8-13 11:54[/i]Preface: Bluetooth controls the display of OLED. First, drive the OLED. I wanted to use the MCU's I2C driver + u8g2 for display, bu...
I am new to Saber. I use Saber to simulate. There are warnings in netlisting and errors in DC analysis. I don't understand and don't know how to fix it. Can someone who knows how to do it help me? It'...
How do you decide which ADC technology to use in your application before you do a thorough system evaluation? You might first choose a SAR converter (SAR-ADC) because you think they are easy to use...[Details]
The VG951 fiber optic gyroscope is developed based on the Sagnac effect, that is, the optical path difference of light in the Sagnac effect is proportional to the angular velocity of rotation, so the ...[Details]
Generally, a low-frequency energy storage capacitor CB is required inside the single-stage PFC converter circuit to balance the instantaneous power input and output, and filter out the second harmo...[Details]
1 Overview
Simple systems can be directly modeled, and the relationships between modules and the input-output relationships of modules can be analyzed. However, for relatively complex syst...[Details]
According to foreign media reports, Elaphe Propulsion Technologies will start small-scale production of the L1500 gearless hub power system. The Elaphe L1500 hub motor can achieve the maximum torque ...[Details]
We often see 0 ohm resistors in circuits. For novices, this is often confusing: since it is a 0 ohm resistor, it is a wire, so why should it be installed? Are such resistors available on the market? ...[Details]
1. Selection of pull-up resistor for MCU You can see that when the resistor R1=10k in the reset circuit, RST is high level, and when R1=50, RST is low level. It is obvious that when R1=10k, it is...[Details]
This section is about writing serial port programs in the ARM2200 environment, including the round-robin method, interrupt method, and serial port programming under the UC/OS-II operating system. Use...[Details]
Connected cars are clearly here to stay, which means security will become a major concern for manufacturers and drivers. As cars quickly become mobile computers that automatically communicate with ...[Details]
M12 is a connector commonly used in the field of communication and has a variety of core numbers (number of leads) to choose from. The 8-core structure of the M12 connector is usually used to trans...[Details]
IT Home reported on March 30 that digital blogger @数码闲聊站 revealed that Xiaomi and Redmi are developing three engineering machines based on the sm8475 chip, one of which is testing a 50Mp ultra-large ...[Details]
Introduction The characteristics of multimedia card MMC are low power consumption, high density, small size, high reliability, erasable, rewritable, and large capacity. The internal co...[Details]
In 2019, Xiaomi released a new concept phone, MIX Alpha, which brought a new form of future mobile phone screens - surround screens. However, in 2020, Lei Jun said that MIX Alpha was a pre-rese...[Details]
This article introduces a flyback constant voltage, constant current 75W LED driver with single-stage (single switch) PFC . The circuit is shown in the figure. The AC input voltage range is 208~277...[Details]
Materials suitable for laser welding
The materials suitable for laser welding are as follows:
1. Die steel. S136, SKD-11, NAK80, 8407, 718, 738, H13, P20, W302, 2344 and other steels have goo...[Details]