Bluetooth-based spying devices can help you eavesdrop on someone, just like in James Bond movies. But Bluetooth and also WiFi have a very low range. Wouldn’t it be cool if you can secretly hear a person or organisation’s criminal plans and take timely action to stop them?
So today, you will learn to make a device that will help you to spy on dangerous people without requiring you to be within range. Since the device works on GSM technology, any person in one country can easily spy on another person in a different country. Another feature of this device is that its small size enables it to be easily hidden.
Because the device is meant for security purposes only, its use is not recommended for any other intent.
Bill Of Material
Begin the project by collecting the following items:
First, you will need to install the FONA library in the Arduino IDE, which will establish communication of AT commands to SIM 800l. The subsequent connection will enable the incoming call on the GSM module to be automatically received for audio transfer of the entire conversation.
Include the FONA library in the code, and then define the RX and TX pins for SIM800l. Next, create a setup function with a baud rate of 4800 for starting the software serial port of the SIM 800I.
After this, create a loop function that will check the incoming call. When an incoming call is detected, it will automatically be received and the attached mic will turn on. Now, as the audio signal is being captured, it will be transferred over a GSM network to any faraway place. This will enable you to remotely listen to someone’s conversation secretly.
Connect the RX pin of SIM 800l to pin 10 of Arduino Micro and TX to pin 11.
Then connect the SIM 800l MIC N pin to the negative pin of the microphone sensor and SIM 800I MIC P to the microphone’s positive pin.
After finishing all connections, power the device either with USB or with a 4 to 5V battery. Then deploy the device near a person, which you want to spy on. Now, make a call on the SIM800l. It will be automatically received and transfer of the voice signal to your phone will begin.
for this project ,audio with camera vision can available??????
NO , Only audio . But you can do it aby adding a ESP cam and GSM module .
can i get your number for a doubt
Yes sure 7061350809
What will be the range of the device?
In ideal case its 1KM
How can we increase the range? And from how far we can operate this device?
Can I get a detailed circuit connection of this. Actually the one in website is too blur.
Did you try the circuit yourself?
I am asking because of the battery price and range you mentioned.
Is there a detailed connection picture. It is too blur in the website .