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First, learn basic bare metal programming. For those who learn hardware, they must first have a perceptual understanding of the basic usage of the hardware, and they must also have a deep underst...[Details]
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With the rapid development of the electronic information industry, basic test instruments are widely used in various fields of the electronics industry. The huge demand for basic measuring instruments...[Details]
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In the previous article, we learned about the data types supported by the KEIL C MCU C language compiler. How are these C51 data types used in the definition of constants and variables? Is there an...[Details]
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LED lamp bead parameter introduction: 1. Brightness LEDs have different brightness and different prices. Lamp cup: general brightness is 60-70lm; Bulb: The general brightness is 80-90lm. ...[Details]
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You can use the example function added by this software to view examples of function implementation. In this software, there are also header files of various series of chi...[Details]
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Fingerprint recognition has become a standard feature of smart door locks due to its simplicity and convenience. In the conventional smart door lock solution architecture, fingerprint recognition and...[Details]
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Silicon photocell is a large-area photodiode that can convert light energy incident on its surface into electrical energy. When there is light, the incident photons will excite the bound electrons...[Details]
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According to Tencent, the latest news from the industry chain said that the shipment volume of the Mate 30 series has exceeded 12 million units, and the momentum is still growing. It is expected that...[Details]
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In the near future, robots may serve as last-mile delivery vehicles, bringing your takeout order, package or meal kit to your doorstep. But the prerequisite is that the robot must first find a place....[Details]
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Based on the information found, a summary and explanation are now made. 1. First, we need to clarify the tone problem: The pronunciation of the tone in the simplified musical notati...[Details]
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Figure 2
IGBT drive circuit
The function of the whole circuit board is equivalent to an optocoupler isolation amplifier circuit. Its core part is the chip HCPL-316J, in ...[Details]
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When the resistor is soldered on the circuit board, the reading is obviously inaccurate when the multimeter is used to directly measure its resistance value, because the parallel effect of the resist...[Details]
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1. Hardware circuit
The I2C bus is a simple, bidirectional, two-wire synchronous serial bus developed by Philips. As shown below:
SDA (serial data line) and SCL (serial clock line) are bo...[Details]
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1. What are thermostats and inverters?
A thermostat is an electronic device that can automatically adjust the temperature. It is usually used in various heating systems, such as water heaters,...[Details]
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Abstract: AD7740 is a CMOS low-power single-channel single-terminal synchronous voltage-frequency conversion chip. It has two modes: buffered and non-buffered. The operating range is wide, the r...[Details]
PCB Design
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