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In order to implement printf printing in the program, the use MicroLib option was checked in the keil Target. The following error occurred during compilation: L6218E: Undefined symbol __initial_sp (r...[Details]
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The schematic diagram of the wireless transmission circuit based on the nrfl2401 chip is as follows: During the experiment, both the sender and the receiver used the same circuit. The sender prog...[Details]
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Recently, Professor Li Baojun and Professor Xin Hongbao from the Institute of Nanophotonics of Jinan University have made important progress in the field of light-controlled micro-nanobiological
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1. Improper configuration of speakers and power amplifiers
It is not true that the output power of the power amplifier is too high, which will damage the tweeter. In professional occasions, the spe...[Details]
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Today's learning progress has reached the LED dot matrix. In fact, the principle is similar to that of classmates in the playground using a bunch of candles to form a heart shape. Use multiple LED li...[Details]
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An investor asked on the investor interaction platform: The gross profit margin of Tongxingda's products is about 10%. Can it be improved? In addition, can the display modules produced by Tongxingda ...[Details]
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I have seen this question before, and now I suddenly remembered it. I think it is quite important. I opened the book and found this method. It is better to remember it. Haha, who made me not learn an...[Details]
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The robot's path memory is realized using 24CXXX series E2PRAM memory.
First, the robot's path acquisition is converted into data using the PIC16F877A microcontroller, which is then proce...[Details]
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With the continuous acceleration of the industrialization process, information technology has gradually entered thousands of households, and people's security requirements for privacy such as home res...[Details]
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Jiwei.com News: After the release of the "Announcement on Corporate Income Tax Policies to Promote the High-Quality Development of the Integrated Circuit Industry and the Software Industry by the Min...[Details]
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Based on the analysis of various alarm sound sources commonly used internationally, this paper proposes a method of adjusting the volume in a mixed switch mode, and uses the MK7A23P microcontroller...[Details]
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Do not write data in the third area of the ds1302 module based on stm8, otherwise the card will be locked. It can only be written in the second area. The circuit schematic is as follows: ...[Details]
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The IU632C is a 3VRMS pop-free stereo linear driver designed to remove the output DC blocking capacitors to reduce component count and cost. This device is ideal for single-supply electronics where...[Details]
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PIC microcontroller connection module introduction: PIC16F87X series microcontrollers can accept up to 14 connection sources. The connection controller register INTCON indicates the request of ea...[Details]
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After the embedded hardware system is designed, it needs to be debugged. Whether it is hardware debugging, software debugging or program solidification, debugging simulation tools are required.
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DIY/Open Source Hardware
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