So with these ultrasonic sensors they often come requiring 5v. This one operates at 3.3v to 5v and that means you can connect it directly to your ESP chip without having to use resistors to drop the voltage back down to 3.3v.
In my case I used an ESP 32 and wired it directly the the 3.3v rail, ground and two GPIOs. While it is not the HC-SR04, I was able to use it just as if it was and wire it without resistors. It worked just fine and there is no risk of burning out the GPIO since it is the standard 3.3 volt.
Accuracy wise, it is about what your would expect for this type of sensor. Good for measuring distances to stationary or objects that move consistently closer or further away. I would not recommend this to replace a motion or beam sensor. It would be perfect for measuring a liquid level.
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Product Description
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- RCWL-1601 is an open ultrasonic ranging module
- 2CM ultra-small blind spot, typical 4.5M farthest ranging
- 3V-5.5V power supply voltage, 2.2mA ultra-low working current
- High accuracy in measuring cotton and irregular objects
- 40 * 18mm smaller size
Product parameters
Working voltage: 3V~5.5V;Working current: 2.2mA;Maximum detection distance: 400CM~450CM
Working frequency: 40KHz
Blind spot: 2-3CM;Detection accuracy: ± 2%
Resolution: 1mm;Error: ± 0.5CM
Detection angle: ± 15 °~± 20 ° (maximum directional angle)
Measurement cycle time: 50mS
Output interface mode: GPIO
Working temperature: -10 ℃~60 ℃;Working temperature: -10 ℃~90 ℃ (aluminum shell probe)
Mode 0: Mode Hanging = Trigger Pulse Width Output (Factory Default Mode)
Mode 1: M1 short circuit is automatic serial port output
Mode 2: M2 Short-circuit as Serial Controlled Output
Mode 3: Mode Welding 200K = Automatic Distance Pulse Width Output
Mode 4: Mode Welding 360K = Low Power Pulse Width Mode Output
Mode 5: Mode Welding 470K = Switching Value Mode Output
Reviews with images
Not tested
I haven't been able to test these yet, but they appear to be well made. The soldering and components all appear to be pretty good and the pins are a good length. I'll update once I have played with them a bit.
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Reviewed in the United States on January 25, 2024
Reviewed in the United States on January 8, 2024
I haven't been able to test these yet, but they appear to be well made. The soldering and components all appear to be pretty good and the pins are a good length. I'll update once I have played with them a bit.
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