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I need to design a night Bluetooth switch light design. The Bluetooth chip used is JDY-30. At first, I didn't know the specific model. Later, after connecting the Bluetooth, I found that it was JDY-3...[Details]
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1. Experimental design Timing interrupt program, serial port P3.0, P3.1 output, use 74LS164 shift register to drive light emitting diode ; Timer 0 in mode 1, 16 bits, interrupt once every 10ms ; ...[Details]
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introduction
Usually, there are two groups of power supplies for household fixed-frequency air conditioner controllers. One group is 12 volts with a current of less than 600 mA; the other ...[Details]
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Test steps By placing the probe between two flat surfaces of the sample, the thermal properties of the material can be measured. 1. Preheating First observe the sample obtained and make sure the su...[Details]
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Abstract
: The purpose of this design is to realize the intelligentization of museum collection anti-theft and protection. With the microprocessor as the core, the color image sensor LM9628 a...[Details]
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From a product perspective, the top three products mentioned most often are Delta’s M8 TL-US inverter (four certifications), Huawei’s Sun2000-11.4KTL-US (four certifications), and Fronius’ Symo 24....[Details]
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LED lighting is becoming increasingly popular as a replacement technology for halogen low-voltage lighting. Unlike halogen bulbs, LEDs do not suffer from low efficiency, poor reliability, and short l...[Details]
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Recently, the Shanghai Municipal Economic and Information Commission announced the list of Shanghai's specialized, sophisticated, and innovative small and medium-sized enterprises in 2024 (the seco...[Details]
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The semiconductor price surge has entered its second half. Although there are signs of weakness on the demand side, as the first batch of new production capacity that the foundry has long announced h...[Details]
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Product introduction: The compact 120 Series oscilloscope is the first choice for fault detection and installation applications in the industrial field. It is a truly integrated test tool that integr...[Details]
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In 1993, seven international organizations, including the International Organization for Standardization (ISO), the International Electrotechnical Commission (IEC), the International Organization of L...[Details]
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1. When PLC and host computer (or touch screen) form a monitoring system, it is often necessary to have "manual", "automatic" and other control modes on the screen (generally, only one can be selec...[Details]
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Transplant ssh to arm Today, I referred to several senior articles on the Internet and transplanted ssh to the arm board of TQ2440. Now I don't need to use minicom to control uclinux. The serial port...[Details]
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Equipment developed for industrial occasions usually has a 4-20mA output interface. In the past, single-chip systems without DAC modules required an external main chip DAC to realize analog quantit...[Details]
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01
Information security requirements
This chapter mainly introduces the information security requirements from four aspects: hardware security, system security, communication security, an...[Details]