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Build an intercom

$250-750 USD

Cerrado
Publicado hace casi 4 años

$250-750 USD

Pagado a la entrega
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.
ID del proyecto: 26705760

Información sobre el proyecto

5 propuestas
Proyecto remoto
Activo hace 4 años

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5 freelancers están ofertando un promedio de $1.110 USD por este trabajo
Avatar del usuario
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 system based PCB design and know all the intricacies required to get the job done with perfection. With more than 5 Years of experience in PCB Design and Circuit Design in Altium, I can ensure you best quality work and before time delivery. Following is a brief list of expertise that I am carrying: 1. IOT products development 2. Microcontrollers based circuit design – STM32, STM8S etc 3. Smart Products like Smart watch - GSM/GPRS/GPS etc 4. Wireless Products - BLE/WiFi- ESP32/ESP8266/NRF24L01 5. Low Power Battery Products design – Rechargeable and Non chargeable 6. Power Electronics – Buck, Boost, Flyback etc 7. 220VAC power, external speaker, microphone 8. 3g~4g Please answer the following questions: 1. What are your future plans with this project? 2. Are there any specific market standards like CISPER you are aiming? 3. What will be ambient temperature of this product? 4. Are there any other specific requirements besides the ones you mentioned Let’s have a quick discussion for 5 mins where I would formulate a plan of action of how we shall take this project to the horizons of success. Regards Pratibha(Nickname -Avi) Quality is never an Accident
$1.800 USD en 45 días
4,9 (10 comentarios)
6,1
6,1
Avatar del usuario
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. Cost and terms are approximate.
$500 USD en 7 días
0,0 (0 comentarios)
0,0
0,0
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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 of the project. Thanks.
$750 USD en 7 días
0,0 (0 comentarios)
0,0
0,0
Avatar del usuario
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 requirements. I am having more than 15 years of experience in PCB Design, Circuit Design, Circuit simulation, IOT products development and building electronic products. The expertise of mine is in the following fields: 1. Wireless Products – BLE, Wifi, NFC, LoRa etc 2. Power Electronics- Buck, Boost, Flyback, Half Bridge etc 3. IOT sensors interfacing – Pressure, Temperature, Moisture, PH etc. 4. Microcontrollers- ESP32, STM32, STM8S, RL78 etc. 5. GSM, GPS, GPRS 6. 220VAC, external speaker 7. microphone, 3g~4g After reading your project details, I have certain queries and suggestions: 1. What is the application of this product? 2. What will be ambient temperature of this product? 3. What are the mechanical constraints to be taken care of? 4. What are the standards that the product would be complying to? 5. What are the user protections required for this project? Please try to answer these questions based on which I would be providing free of cost consultation. I am new to this site but I am an expert in electronics product development. Please message me so that I can formulate a success plan for this project. Waiting for your reply, Regards Hari Mohan Engineering for one is a magic for others
$2.000 USD en 60 días
0,0 (0 comentarios)
0,0
0,0
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yes i am interested in this job.i am electronics and communication engineer.i have experience to develop electronics project.
$500 USD en 3 días
0,0 (0 comentarios)
0,0
0,0

Sobre este cliente

Bandera de SOUTH AFRICA
Johannesburg, South Africa
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Miembro desde abr 3, 2020

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