MCU development | PCBA | punch control boardWhen the motor speed is less than 10 times per minute, the nixie tube displays the current motor speed; When the speed is greater than 10 times per minute,
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Development of temperature and humidity display board controller PCBA single chip microcomputerFunction specification of temperature and humidity display panel1. Working voltage: 3.3vdc ~ 5VDC2. Rever
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Development of PCBA single chip microcomputer for induction lamp control boardFunctional specification1. Human body infrared sensing automatically turns on the light, and the sensing distance is withi
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Main causes of PCBA processing solder joint failure:1. Poor component pins: plating, pollution, oxidation, coplanar;2. Poor PCB pad: coating, pollution, oxidation and warpage;3. Solder quality defects
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