Bluetooth Detector – The GX-3R Pro is the world’s smallest 5G monitor, weighing just 4.58 ounces and fits in the palm of your hand (2.9″ W x 2.6″ H x 1.06″ D). Controls and displays 5 different gases at the same time. In addition to monitoring standard closed space gases, LEL, O2, CO and H2S, the GX-3R Pro has a fifth channel where infrared or toxic sensors can be added. Two of the four sensor slots have interchangeable sensors, providing flexible settings that can be easily changed in the field.
GX-3R Pro is equipped with Bluetooth wireless communication, human alarm, choice of alkaline or rechargeable power supply and 3-year warranty. The lithium-ion battery pack runs for 25 hours and is fully charged in 3 hours.
The GX-3R Pro uses Bluetooth communication to display gas readings directly from the device to a phone app, available for free on iOS or Android phones. Automatic alerts can be programmed to send text messages or emails when there is an alarm from the GX-3R Pro.
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Safety inspectors will evaluate the nonconformance indicator. The device flashes 3 LEDs every 30 seconds under the following conditions. If the test device has not been tampered with, or if a calibration has been performed, or if there is a gas alarm event. The 3 LEDs will continue to flash once every 30 seconds until the mismatch condition is resolved. An interval of 30 seconds can be set.
The newly developed thermal camera Optris PI 1M is particularly suitable for measuring the temperature of metals, because this radiation is typical at a short measurement wavelength of 1μm compared to…
The series includes two feature combinations: MDO-2000EG and MDO-2000EX. The MDO-2000EG models have a built-in analyzer and two-channel 25 MHz arbitrary waveform generator, and the MDO-2000EX models have …
EGIL is an automatic timer and motion analyzer for medium and high pressure substation circuit breakers. This item is not available for purchase online. Please call 5161 656292 or @sales…
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LinkRunner AT Network AutoTester provides user-defined automated tests for a wide range of critical tasks. This network tester’s quick cable check and switch detection allow fast problem isolation. This item…
HOBO MX Soil Moisture Loggers are the industry’s only affordable soil moisture loggers that are fully integrated with wireless Bluetooth data logging. Available in two models – one for measuring soil moisture (HOBO MX2306)…
Why choose the new 500 MHz four-channel ScopeMeter® test instrument? Faster sampling rates and higher bandwidth mean greater accuracy and resolution. Captures and displays amplitudes, amplitudes of unknown waveforms, etc.
Trying to locate the source of Wi-Fi interference on a wireless network with the wrong tools can be hit or miss. AirMagnet Spectrum XT is a Wi-Fi spectrum analyzer that provides a hybrid view of RF impact analysis.
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Fluke Networks Electrical Contractor Telecom Kits consist of industry standard telecom tools and telecom test equipment in a durable hand tool case. Hand tool kit for phone…
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InTemp® CX402-xxM data loggers (with Probe only) monitor temperatures in refrigerators, freezers, and other temperature-controlled environments to meet global GDP requirements. Want to learn how to trigger events when a known Bluetooth device is nearby using BBGW? Here’s a Python example to Get started! Read more about this project
Want to learn how to trigger events using BBGW when a known Bluetooth device is nearby? Here’s a Python example to get you started!
In this short tutorial, you’ll learn how to configure the BeagleBone Green Wireless (BBGW) to use Bluetooth and create a simple Python script that turns on an LED when a known Bluetooth-enabled device (such as your phone or fitness band) is turned on. ) is located in the measurement range.
This demo should serve as a simple starting place for building systems that require the ability to track or sense users recognized by handheld Bluetooth devices.
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Make sure you are running the latest device firmware image. Be sure to use only the detailed images
Libraries As the platform matures, the most updated image will be pushed to the official wiki page, but for now, use the latest beta version.
For more information on BeagleBone Green firmware update or eMMC flash to unlock the microSD card, see the official page for this topic here.
You will need net access to continue, so be sure to read section 3.3 of the BBGW system reference manual on the BBGW internal memory about setting up WiFi. (Hint: Look for the PDF document located in [BBGW Device Root]DocsHardware)
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Before starting any system setup, it’s always a good idea to install the latest stable software. Access the command line interface on the device via ssh or through the terminal tab in the Cloud9 IDE BBGW and run:
With all the libraries and dependencies installed, it’s time to run our Bluetooth chipset on BBGW. This is a small built-in script for wireless-capable BeagleBone models that detects the Bluetooth hardware and configures it for use.
To keep the demo as simple as possible, I decided that the script would change only one LED connected to pin P8_7. Since the current draw of most LEDs is very small, we can drive it directly from the GPIO pin on the BeagleBone without a problem. If you want to go all the way, add a 200Ω or more resistor in series with the LED to limit current flow.
In general, what we want is a simple loop that requests information from a known Bluetooth device ID and, depending on what it hears, changes the state of the digital output pin accordingly. If the script receives the requested information, we set a pin connected to the LED HIGH, otherwise we set it LOW because the device should be out of range.
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The neat thing about surveying general Bluetooth information is that we don’t have to worry about compatibility with the target device anymore! This greatly reduces the complexity of the system, which can be implemented in just a few lines of code.
To make the script a little easier to use, I’ve added some helpful user messages and a device discovery step to make it easier to identify your Bluetooth device.
Just open your favorite editor and place the script in the code snippet in a new file named
After following the on-screen instructions, the script will ping your device every few seconds for information. Try moving away from the BeagleBone and back to see what the detection range is for your particular device. LED, despite being traditional for basic training, makes it very easy to identify the current state of remote sensing.
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A typical case for this detection method is using a user inside and outside the detection range.
For my phone, I had to get about 12 feet away before the BeagleBone disconnected, and there were a few false negatives when I got back into range.
The above script is just a quick working example of a detection method that does not require device matching. I leave ideas to the reader on how to extend it for use in a more serious system. A great tool for searching digital and analog transmitters in a frequency range. Detects almost any type of wireless protocol. Use the demodulation feature that allows users to hear the audio frequency signature
IProtect 1206i is a new type of anti-tracking devices. Unlike all conventional scanners, it can detect modern “hidden” bugs that use protocols such as Bluetooth and Wi-Fi for long distances. Such bugs, especially the Bluetooth variety, are almost undetectable by common RF detectors due to the very low transmission power and special type of modulation. i Protect DD1206 uses a separate channel with a high frequency selector (2.4/5 GНz) to detect and locate Bluetooth and Wi-Fi with much higher sensitivity. The unit then processes the decoded signal to determine which protocol has been detected. In addition, the unit can detect all classic bugs and test a connection by sending audio pulses as well as other standard distance digital transmissions (GSM, 3G, DECT, etc.). A frequency detection device capable of detecting almost any type of wireless protocol, including digital frequencies such as
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