+- Free Academic Seminars And Projects Reports (https://easyreport.in)
+-- Forum: Project Ideas And Disscussion (https://easyreport.in/forumdisplay.php?fid=32)
+--- Forum: Engineering Project Ideas (https://easyreport.in/forumdisplay.php?fid=33)
+---- Forum: Electronics-Electrical-Instrumentation-Applied Electronics Related Project Ideas (https://easyreport.in/forumdisplay.php?fid=37)
+---- Thread: Mobile incoming call indicator (/showthread.php?tid=3984)
Mobile incoming call indicator - csevenkatramana - 08-16-2017
[attachment=15390]
Description.
This circuit can be used to escape from the nuissance of obile phone rings when you are at home.This circuit will give a visual indication if placed near a mobile phone even if the ringer is deactivated.
When a call is coming to the mobile phone, the transmitter inside it becomes activated.The frequency of the transmitter is around 900MHz.The coil L1 picks up these oscillations by induction and feds it to the base of Q1.This makes the transistor Q1 activated.Since the Collector of Q1 is connected to the pin 2 of IC1 (NE555) , the IC1 is triggered to make the LED connected at its output pin (pin 3) to blink.The blinking of the LED is the indication of incoming call.
Circuit diagram with Parts list.
Notes.
The coil L1 can be made by making 150 turns of 36 SWG enameled copper wire on a 5mm dia plastic former.Or you can purchase a 10 uH coil from shop if available.
The circuit can be powered from a 6V battery.
Assemble the circuit on a good quality PCB.
C1 & C3 are to be polyester capacitors.
The electrolytic capacitor C2 must be rated 10V.
Mobile incoming call indicator - namratasatpathy - 08-16-2017
To get full information or details of Mobile incoming call indicator please have a look on the pages
http://seminarsprojects.net/Thread-mobile-incoming-call-indicator
http://seminarsprojects.net/Thread-mobile-incoming-call-indicator
if you again feel trouble on Mobile incoming call indicator please reply in that page and ask specific fields in Mobile incoming call indicator
Mobile incoming call indicator - Charusmita Dhiman - 08-16-2017
I m ganesh rawade from pvpit college bavdhan pune. I wish to make a project on mobile incoming call indicator hence need some details on it regarding materials requirement and procedure. So plz provide me the help at [email protected]
Mobile incoming call indicator - asha.jayaram11 - 08-16-2017
to get information about the topic "mobile incoming call indicator" full report ppt and related topic refer the page link bellow
http://seminarsprojects.net/Thread-mobile-incoming-call-indicator
Mobile incoming call indicator - rvinaybharadwaj - 08-16-2017
to get information about the topic "mobile incoming call indicator" related topic refer the page link bellow
http://seminarsprojects.net/Thread-mobile-incoming-call-indicator
Mobile incoming call indicator - AshajS - 08-16-2017
Please send a complete information n complete documentation on " MOBILE CALL INDICATOR" to [email protected]
Mobile incoming call indicator - madhurika - 08-16-2017
i need the working principle of mobile incoming call indicator