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The touch screen control chip is XPT2046. XPT2046 is a 4-wire touch screen controller with a built-in 12-bit resolution 125KHz conversion rate successive approximation A/D converter. 1. Basic princip...[Details]
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The LED light bar can achieve 360-degree light source without adding lens, which makes people feel like returning to the traditional incandescent lamp. LED light bar has many application advantag...[Details]
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On August 27, Laibao Hi-Tech released its semi-annual report. The company's operating income in the first half of 2021 was approximately 3.759 billion yuan, an increase of 35.91% year-on-year, mainly...[Details]
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"Accelerate the construction of ubiquitous power Internet of Things" and "effectively reduce the burden and pressure on the grassroots frontline". At the beginning of this year, these two seemingly...[Details]
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With the development of control technology, voltage and current modulated signals have been more widely used. If the signal has a high harmonic content, the traditional active power measurement metho...[Details]
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The LTC1588/LTC1589/LTC1592 are serial input current output 12-/14-/16-bit multiplying DACs that operate from a single 5V supply. These SoftSpan™ DACs are software programmable for either unipolar ...[Details]
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Typical Applications of Fixed Three-Terminal Regulators
Common products of fixed three-terminal voltage regulators are shown in Figure 3. Among them, the CW78×× series voltage regulator outputs ...[Details]
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The basic principle of keystroke is to set the MCU IO port (PB0-PB3) to input state, such as DDRB = 0XF0 (direction register, "1" is output, "0" is input); The microcontroller always detects the st...[Details]
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LED displays are divided into two types: common cathode LED and common anode LED.
The common cathode LED circuit connection is shown in Figure 1 (a). The cathodes of the 8 LEDs are connected t...[Details]
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As embedded system design becomes increasingly complex and the requirements for computing performance have greatly increased, in order to fully meet customers' high requirements for execution efficie...[Details]
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U.S. Commerce Secretary Gina Raimondo said in a telephone briefing on May 31 that the global chip shortage may continue into next year, or even not ease until the beginning of the year after. She cal...[Details]
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According to OPPO's research, the proportion of young people taking videos and sharing them is increasing rapidly, and most users take videos after get off work or after 6 o'clock. However, wh...[Details]
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ARM processor has 7 operating modes: usr, fiq, irq, svc, abt, und, sys. The ARM processor has a total of 37 registers: 31 general registers (unbacked registers R0-R7, which refer to the same physic...[Details]
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Qualcomm Technologies, Inc., a subsidiary of Qualcomm Incorporated (NASDAQ: QCOM), and Tencent QQ today announced at MWC Shanghai 2019 that they are collaborating to bring the popular QQ social servi...[Details]
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According to the latest research data from Counterpoint, in the second quarter of 2020, due to the impact of the epidemic, sales in the European smartphone market fell 24% year-on-year and 22% month-...[Details]
Test/Measurement
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