Project description:
I will introduce the Ultrasonic Range Meter with PIC16F873. The propagation speed of the sound changes with the temperature. I used A/D converter to revise a display.

Electronics used:
T40-16
R40-16
LM833N
LM358
4011B
4069UB
2SC1815
2SA1015
1SS106

Link: Ultrasonic Range Meter

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