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hi to all
i need a solution to connect more than one siren to a circuit using extrnal power supply(12v 1A) and my circuit supports only one siren (12v 350ma). so i need a circuit to do this, what i have
1. i have a driver circuit 12v 350 ma(can operate only one siren)
2. power supply 12v 1ma
3...
How to make PCBs at home
in 1 hour & W I T H O U T special materials
If you take your electronics hobby seriously, then you already feel the need for a simple and fast technique for making your own printed-circuit boards (PCB). Here I’m going to show how to make simple single-sided PCBs in a...
sending pictures through gsm modules
i think using a cheap mobile phone like chenese one is the best option, because they are cheap and can be controlled using AT commands easily. also they provide you to omitt many complexity of design and implimentaion.
does any body suggest me a record and play back chip whic is capable for recording and playing 5 or more messages of atlest 30 sec each.
or any other alternate to it
thanks
cc2500 atmega8
does any body help me in choosing a microcontroller for transmission and reciver, and also help me in chooosing transmiter and reciver ic, for non license band which shuld be capable in sending and reciving data at least in 400 ft.
thanks
hi,
i want to make a security system which may have following features
motion detector
smoke, gas leakage detector
wireless sensors
auto dailer gsm/fixed line etc
cctv camera interfacing.
hooter, alarm.
does any body like to help in development of this project.
till now i have planed...
security system
hi,
i want to make a security system which may have following features
motion detector
smoke, gas leakage detector
wireless sensors
auto dailer gsm/fixed line etc
cctv camera interfacing.
hooter, alarm.
does any body like to help in development of this project.
till now i have...
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