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A simple voltage divider circuit can be used to work with the ultrasonic sensors. Hence, the recommended resistor values are R1 = 1k Ω and R2 = 2k Ω . a mathematically the equation can be defined as:
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After several tests, we found that the ideal values of R2 and R1 should be chosen as per the ratio below.
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Here are some resistor values that works well with the BenchBot design.
Resistor pair values | |||
|---|---|---|---|
R2 | 2 K Ω | 470 Ω | 1.5 K Ω |
R1 | 1 K Ω | 370 Ω | 680 Ω |
How to use the sensor with raspberry pi?
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