The relationship between pulse+, pulse- and U2B output is logical AND.1. When pulse+ is high and pulse- is low, what are the voltages at points c and d respectively?
The Q8 diode is reverse cutoff (co...
I just checked my Moments and realized that today is the Winter Solstice. I wish everyone a happy Winter Solstice! No matter what you eat, it tastes like home!I heard that on the winter solstice, peop...
Flasher Hub is a new generation Flash batch programming controller from SEGGER, used with Flasher. Flasher Hub can control up to 24 Flashers to program the chip in parallel, which is suitable for batc...
We are making a small weather station. We are using the E90 DTU to transmit data. We receive the hexadecimal data of the sensor through the serial port on the computer. Now we want to transfer the dat...
Visual Home Environment Analyzer + ADI Smoke Sensor Appreciation
I also applied for an ADI smoke sensor and spent a few days researching and drawing a PCB, but I haven't installed the chip on it yet, ...
When I first heard about the Raspberry Pi, I had no interest in it because it was not a new product for me. Earlier, I had played with the arm11 development board (S3C6410 series, see the picture b...[Details]
Abstract: Based on the LED driven micro-power DC-DC converter, a hysteresis comparator circuit with a bandgap structure is designed to meet the requirements of low voltage and high stability. Its m...[Details]
Sonos recently launched its lowest-priced long-bar speaker, Sonos Ray. This compact speaker is priced at US$279 in the United States. It is said to use "advanced processing" technology to create a "s...[Details]
Anti-theft doors have entered thousands of households, and the locks on anti-theft doors are of various styles. From early mechanical locks to modern electronic locks and smart locks, and then to t...[Details]
According to news on December 5, after the market research agency Canalys released its report, another market research agency IDC yesterday also released quarterly tracking data for global wearable d...[Details]
Summary: Charging convenience does not come for free. Engineers have come up with many solutions behind the scenes. Looking to the future, do not buy cars that do not support USB Type-C interface. ...[Details]
Lesson 15: Intermediate 08: LabVIEW Runtime Performance (Author: NI Application Engineer Li Fucheng) 1. Avoid forced type conversion 2. Prevent memory leaks 3. Convert part of vi into subvi Compari...[Details]
In use, a dedicated ground resistance tester is expensive and inconvenient to purchase. Can I use a multimeter to measure the ground resistance? The author used a multimeter to conduct experiments ...[Details]
Automatic control circuit for star-delta starting of electric motor
Working principle: Close the power switch QK, press the start button SB1, contactors KM2 and KM1 are energized at the ...[Details]
The effective value (rms) is a measure of the amplitude of an AC signal. Practically defined, the effective value of an AC signal is equal to the amount of DC required to produce the same amount of...[Details]
With the rapid development of electronic technology, control systems based on single-chip microcomputers have been widely used in industries such as industry, agriculture, electricity, electronics, a...[Details]
According to the working principle of brushless DC motor, a brushless DC motor control system for electric motorcycle is designed with PIC16F737 single chip microcomputer as the control core. The deta...[Details]
In the design of LED lighting power supply , there are several design problems: the life of electrolytic capacitors does not match that of LEDs, the common causes and solutions for LED flicker, t...[Details]
Introduction: This article gives the PIC16C71 microcontroller key to wake up the CPU source program, I hope it will be helpful to interested friends. ;p=pic16c71,xt=40000hz LISTP=16c71 ; ZEQU2 ...[Details]
Discrete Device
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