Small Electronics Design

I am looking to have designed a small electronics system. The system will consist of a simple timer with user interface, a micro-controller, a light sensor, and a small speaker and LED light to serve as an alarm.

The electronics will be implemented into a small plastic and/or glass product. This product is to be used in the following manner:

-The user will enter a time (possibly hours and/or days), this timer will then count down. After the timer reaches 0, the speaker will sound a "beep" and a light will flash only after the light sensor detects a significant amount of light. The product will be kept in a dark place 99% of the time and will be in light after the user physically turns a light on. The idea is for the product to sound an alarm after the set time AND after the light sensor detects a significant amount of light.

At this stage, I am looking for this small electronics circuit to be designed for a prototype plastic/glass product. I am also looking for advice on how to implement this circuit into a plastic/glass product such that it will be able to be submerged in hot water and still function properly.

Any advice on manufacturing this circuit in large quantities (thousands of units) is also desired.

I have attached what I believe to be correct circuit logic for this circuit.

Skills: Circuit Design, Electronics, Product Design

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About the Employer:
( 5 reviews ) Tampa, United States

Project ID: #7020736

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I am working as Lab Engineer at FAST National University Pakistan, in Electrical Department, I have conducted the followings Labs, and also supervised Projects related to these labs. 1. Control System Design & Mode More

$100 USD in 3 days
(176 Reviews)

16 freelancers are bidding on average $176 for this job


Hi Sir I am an electronics engineer. I have almost 4 years of experience in electronics circuit designing and can do it for you. I have worked on almost all families of the micrcontroller. We can place the circuit i More

$100 USD in 2 days
(196 Reviews)

Over 12 years of experience in electronics hardware and software design. Proficient in software and hardware design of embedded systems. Successful in planning and management of entire development and production cycl More

$722 USD in 20 days
(27 Reviews)

hello we can help you in all term of this project bout the plastic cover, i have small 3 D printer we can develop that product and draw the product using software in electronics circuit i can do that the time wil More

$155 USD in 3 days
(7 Reviews)

Hi there! I am Pranav here, from India... I just read through the project description thoroughly, and a few ideas have surfaced my mind... But before that it would be good to know how user friendly the UI is supp More

$155 USD in 0 days
(10 Reviews)

Hi, An interesting project, that could be approached from many angles. Well within our capacities to help you, but a few important questions. Is this a 'durable' product..i.e. is it supposed to last a long time? If More

$277 USD in 10 days
(13 Reviews)

I have read and understand your requirements Please open chat window to discuss further.. ++++++++++++++++++++========================+++++++++++++++++++++++++++++++++++++++++

$98 USD in 2 days
(17 Reviews)

Hi you're saying: The user to set time/day. To do that, the device will need to have a keypad ie. 4 keys or maybe less, but at least 1 or 2, and somekind of a display to show the user the time & day as digits! So tha More

$144 USD in 5 days
(1 Review)

Hi i can help you with this ............................................. .................................................... ...............................................................

$122 USD in 3 days
(9 Reviews)

Hi!! I am en Electrical Engineer that has made similar type of projects myself using microcontrollers and other component. One suggestion i give here is to use arduino microcontroler in you project. Secondly as i More

$111 USD in 3 days
(5 Reviews)

Nie złożono jeszcze oferty.

$155 USD in 10 days
(1 Review)

The light sensor is mandatory or not? Because the microcontroller can turn on the light and the speaker when the timer reach the "time up". Can you tell me what kind of the light and speakers do you want to you.

$88 USD in 2 days
(0 Reviews)

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$127 USD in 3 days
(0 Reviews)

I have already designed such circuits using timer and microcontroller. I have great experience of using microcontroller using sensors. I can also design pcb layouts for the final circuit.

$111 USD in 3 days
(0 Reviews)

I have a lot of experience in the electronic hardware design, I think these project can be made with an atmega 328, a rtc ds1307 and can be added a lcd display if you would like to see the time of the timer, it was pro More

$100 USD in 5 days
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$250 USD in 3 days
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