Interface Wireless Frequency Sensor with Arduino

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Discussion Overview

The discussion revolves around interfacing a wireless frequency meter transmitter with an Arduino, focusing on testing the signal strength of the sensor at various distances. Participants explore the technical aspects of the sensor and its capabilities, including its frequency range and communication methods.

Discussion Character

  • Exploratory, Technical explanation, Experimental/applied

Main Points Raised

  • One participant seeks suggestions for testing the antenna strength of a wireless frequency meter transmitter with Arduino, noting their inexperience with such sensors.
  • Another participant requests a link to the sensor's datasheet to clarify its frequency range and signal detection method.
  • A participant shares a product manual for the wireless frequency transmitter, indicating it is user-friendly with PCs or laptops.
  • It is noted that the sensor operates as a 2Hz-10kHz frequency counter and that experiments are planned to determine the RF range for communication with a PC.
  • Claims are made about the sensor's impressive range, including a 2-mile range with an on-board antenna and up to 28 miles with high-gain antennas, although the exact RF frequency is not confirmed.
  • A suggestion is made to check for "RSSI" reading capability in the documentation, as it could provide insights into the RF signal strength as distance and location vary, with a note on how multipath interference may affect RSSI readings.

Areas of Agreement / Disagreement

Participants have not reached a consensus on the specifics of the sensor's capabilities, and multiple viewpoints regarding its range and testing methods are present.

Contextual Notes

There are limitations regarding the clarity of the sensor's frequency range and the absence of detailed specifications in the shared documentation. The discussion also highlights the potential impact of environmental factors on signal strength measurements.

Who May Find This Useful

Individuals interested in wireless sensor technology, Arduino interfacing, and signal strength testing may find this discussion relevant.

Robbie64
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Hello, I am going to interface wireless frequency meter transmitter with Arduino but before starting regarding sensor, I need to test the signal strength of this sensor (at different distances) by interfacing it with Arduino, I have never been used such kind of sensor before so any suggestion for testing the antenna strength will be a great help.
 
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Welcome to the PF. :smile:

Can you post a link to the datasheet for this sensor? So far it's not clear what frequency range it senses, and how it picks up the signal. Thanks.
 
Okay, so it is a simple 2Hz-10kHz frequency counter that you interface with wirelessly. And you are wanting to do some experiments to see what the RF range can be (how far the sensor can be placed away from your PC and still communicate)?

They claim pretty impressive range numbers (from your first link):
  • 2 Mile Range with On-Board Antenna
  • Superior LOS Range of up to 28 miles with High-Gain Antennas
It looks like they are using the DigiMesh 2.4GHz protocol (I couldn't find the RF frequency in the docs you linked to, but I think DigiMesh is commonly used in the 2.4GHz band). Here are similar modules:

https://www.mouser.com/new/digi-international/DigiDigiMeshModules/?gclid=EAIaIQobChMI-rbjgOjY3QIVhVd-Ch2rKQuEEAAYAiAAEgIE1vD_BwE

Look through your documentation for "RSSI" reading capability (received signal strength indication). That is the best way to see how strong your RF signal strength is as you vary distance and location (multipath interference will affect RSSI and generally will lower the effective range).
 

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