As we all know, there is such a vivid metaphor in the electronics industry: if the MCU is compared to the "brain" of the circuit, then the crystal oscillator is undoubtedly the "heart". Similarly, the
Microphone, light sensorThe control board has a microphone onboard, which can be used to sense changes in the sound of the surrounding environment.The control board has a light sensor onboard, which c
In actual use, the emulator is often used in development environments with different versions. It is found that when the lower version of the firmware is upgraded to a higher version, it is necessary
The lpc824 system started working fine with the USART interface program, and later added an RS-485 communication chip. Sending data is normal, but receiving data is no longer possible. Sometimes a cha
Ultrasonic waves are often used to measure distances because they have strong directivity, slow energy consumption, and can travel a long distance in a medium. For example, distance meters and level m