I want to build myself a parking sensor using Arduino and I found on Ebay multiple solutions, but I was wondering, is it possible to make only the probe that looks like this

work with Arduino? Does anybody has an idea how it works and how it could be integrated with arduino? Or do I need the electronic module that comes with it?

Here's some technical info on the item:

Center frequency (KHz): 40±1.0KHz
Echo Sensitivity: ≥200mV
Decay Time: ≤1.2ms
Directivity (deg ) X-axis: 60±15
Directivity (deg ) Y-axis: 60±15
Capacitance ( pF ): 2000±15%
Allowable Maximum Input Voltage ( Vp-p): 140 (40KHz) Pulse width 0.5ms, interval 20ms
Mean Time to Failure: 5000h
Operating Temperature ( Degree Celsius ): -40~+80
Storage Temperature ( Degree Celsius ): -40~+80
Cable Length: 250 cm
Radar Diameter: 22.5 mm


  • that seems to be a high-voltage device atypical of hobbyist gear, the ones that look like a pair. – dandavis May 6 '18 at 4:39
  • I don’t know if that’s true because that probe works with a 5V controller in the kit – sundaysfantasy May 6 '18 at 4:41
  • Or yeah, maybe that one probe is different, but there are other more common that look like it, that’s just the picture I found – sundaysfantasy May 6 '18 at 4:42
  • ( Vp-p): 140 (40KHz) is the part i'm hung-up on... – dandavis May 6 '18 at 4:44
  • Looking at how many components are on the modules that are sold for these transducers, I don't think so. The part you showed is probably only the transducer; basically a piezo element. – Gerben May 6 '18 at 16:00

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