Build an intercom

Looking for an electronic engineering company to create an intercom system using mobile technology (3g~4g). The system should be two way with battery backup for about 4 hours in case of power failure. Over and above the normal two way communication a sms will be sent to different numbers when ever there is call from the system. We should be able to program the numbers to be dialed out and sms to, and change remotely if the need arises.. The system must allow via cables for an external speaker, microphone and button to activate call. There is a 220VAC power [login to view URL] will be enclosed in a reasonably protected case nothing special. The volume of the speaker should be able to be adjusted. The antennae should be external.

Payment will be made on completion.

Habilidades: Electronic Design, PCB Design and Layout, Digital Electronics

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Acerca do Empregador:
( 0 comentários ) Johannesburg, South Africa

ID do Projeto: #26705760

6 freelancers are bidding on average $1008 for this job


Best PCB Design Expert at your doorstep! Dear Client, I couldn’t stop myself from bidding after going through the description as they are an exact match with my skillset and experience. I have experience in intercom Mais

$1800 USD in 45 dias
(1 Comentário)

There is a similar development. The device is made in the form of a mobile phone, only without numeric buttons and a screen. I can send a photo. Only two buttons call and reset. We can upgrade to your requirements. Cos Mais

$500 USD in 7 dias
(0 Comentários)

Hi there, I have read your project description and I’m confident that I can help you with this task perfectly. I still have a few questions. Please leave a message on my chat so we can discuss the budget and deadline o Mais

$750 USD in 7 dias
(0 Comentários)

Dear Client, I have read and understood your requirements and could do it for you in the least time and utmost superior quality. I have experience in Building an intercom and could design it for you as per your require Mais

$2000 USD in 60 dias
(0 Comentários)

Hi! I am interested in your project. I have carefully read your description of the project. It is very interesting for me. I'll be glad to to make this project for you, taking into account all your wishes. I have Univ Mais

$500 USD in 7 dias
(0 Comentários)

yes i am interested in this job.i am electronics and communication engineer.i have experience to develop electronics project.

$500 USD in 3 dias
(0 Comentários)