Sebrian Beselly smbeselly
bminer
/ range_sensor.py
Created
May 21, 2018 15:25
Python Script for Raspberry Pi + HC-SR04 sensor to measure water level in a sump pit
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| #!/usr/bin/python | |
| # Measure distance to water level in sump pit using | |
| # HC-SR04 ultrasonic ranging module | |
| # Sensor info: | |
| # 2cm - 4m. range with ~3mm. accuracy, 15 degree measuring angle | |
| # 5VDC, 15mA working current | |
| # Suggestion in spec to connect ground before 5VDC line when hot plugging | |
| # Measure surface area no less than 0.5 m^2 (really?) |
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