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On February 28, Nokia (HMD Global) launched three new entry-level smartphones at MWC 2022. The three new models are Nokia C21, Nokia C21 Plus and Nokia C2 (second generation). They are all designed t...[Details]
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;;Content: Press the button connected to PA3 to interrupt the LED digital tube to add 1
;Digital tube segment code connection method A-PD0, B-PD1....G-PD6, H-PD7
;Digital tube bit code connection me...[Details]
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When booting up, it was found that there was no response when powered on. After testing: it was found that the power board of this Tektronix TDS2014C oscilloscope was damaged, causing it to fail to...[Details]
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As an engineer, do you know how fast consumer electronic devices operate and how many tasks they can perform per second? The high speed of these devices brings a lot of fun, enabling intuitive ...[Details]
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about the author: Zhu Yulong is a senior electric vehicle three-electric system and automotive electronics engineer. He is currently engaged in the electronics of new energy vehicles. He has more t...[Details]
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/* When using the 51 series MCU, it is sometimes necessary to simulate the I2C bus. */ /* Here is an example (read and write serial EEPROM chip at2402) */ /*******************************************...[Details]
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Data transmission mode of ARM I2C bus
The ARM V C bus interface has four operation modes: master controller sending, master controller receiving, controlled device sending and controlled device...[Details]
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On the basis of ensuring the safe operation of the instrument, we strive to improve the accuracy and energy saving of the instrument. To this end, we should not only select display instruments that m...[Details]
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After the initial hype of AI, implementation has become a key criterion for measuring the actual commercial value and vitality of AI chips. In this "battlefield" of real competition, many AI chip com...[Details]
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0 Introduction
Although traditional inverter technology is mature, reliable and widely used, it has disadvantages such as large and heavy size, high audio noise and poor system dynamic charact...[Details]
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The advantages of LEDs used in the center high-mounted brake lights (CHMSL) of cars include: faster reaching of set brightness, higher efficiency, longer service life, and the very small red LED ar...[Details]
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As of the close of June 9, the Shanghai Composite Index was at 2956.11 points, up 0.62%, with a turnover of 251.4 billion yuan (the turnover on the previous trading day was 274.6 billion yuan); the S...[Details]
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Ultra-thin laptop adapter circuit : 65W, 19.7V, 3.3A, 90–265 VAC input flyback power supply circuit
...[Details]
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1. LED production process
1. Process:
a) Cleaning: Use ultrasonic cleaning to clean the PCB or LED bracket and dry it.
b) Mounting: After preparing silver glue on the bottom elec...[Details]
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As the second true wireless headset released by vivo, vivo TWS Neo not only focuses on the dual selling points of good sound quality and low latency, but also supports many functions such as sliding ...[Details]