Devam Ediyor

Design & program a device with Keypad, Lights and Buzzer (probably Arduino)

It has been since I was a kid since I built & soldered things, but need to build 5 of these devices for a “simulation” so I’m looking for some help with the design.

I do have an Arduino Leonardo, and have done some very simple (the samples) programming with it, and am wondering if this might be a way to go build these. But am flexible on another Arduino board, OR a standalone IC chip.

Here is what I am trying to build (see uploaded crude diagram of my thinking on the circuit/components):

PURPOSE: This is to SIMULATE the “locking” of a door, and then the “unlocking” of the door when you enter the correct 4 digit code. This does NOT control a door, just the red light, green light and buzzer.


-Keypad/IC that can be programmed with two 4 digit codes [lock and unlock] (or could be done via program if using Arduino). 4 digit code must remain when power fails.

-Green light turns on when power applied and is in “ready state/disarmed”.

-Entering the 4 digit LOCK code (and probably #), on the keypad “arms” the circuit. Meaning that #1. The buzzer sounds (probably in a pulsing pattern for a 5 seconds, then turns off), and then #2. The red light turns on and stays on.

-When you enter the correct 4 digit UNLOCK code (and probably #), the circuit goes back to “ready state/disarmed” meaning that #1. The red light turns off, and the green light turns on.

-Device now back in “ready state”, “armed” again and the cycle can start over again.

-The 2-light/buzzer combo unit [that I must use] is 24VDC, so I don’t think I can run that directly from the board/IC, so will probably have to use a relay. This 24VDC 2-light/buzzer combo unit is the only part that is already determined and must be used ([url removed, login to view]) . All other parts are flexible.

-Need to put the IC/Board/Switch in a project box.

-Of course cheap, reliable, and easy for an amateur to build ;)


-diagram/schematics of a circuit/device that meets the specific requirements above.

-parts list that is readily available from US suppliers (part numbers and/or URLs preferred)

-Working, well documented Arduino code/program if that is used.


-50% after above deliverables are supplied, then I will order parts (for one unit) for fast shipping to test.

-50% after design/device is assembled and tested.

Beceriler: Arduino, C++ Programlama, Elektrik Mühendisliği, Elektronik, Gömülü Yazılım

Daha fazlasını görün: what is industrial design, what is design thinking, what can you do with programming, unit test order, the design cycle, state design pattern, shipping box design, reliable parts, programming meaning, programming help now cheap, programming diagram, programming box requirements, programming arduino in c, power program in c, need help with my programming project, m.c.m. electronics, looking for pattern design, lamp programming, kid programming, industrial design design, industrial design com, ic programming, html 5 pattern, fast switch, design cycle

İşveren Hakkında:
( 33 değerlendirme ) Southeast, United States

Proje NO: #6492370



Greetings! I would be happy to do your project. I can ensure for you high quality and fast work. I have great teaching skills where I'm working as a lecturer at a university. To check my work quality YOU Daha fazlası

1 gün içinde 40$ USD
(1 Değerlendirme)

14 freelancers are bidding on average $68 for this job


A proposal has not yet been provided

in 2 gün içinde100$ USD
(19 Değerlendirme)

Hello Sir. I can do what you need with quality and reliability. Please read more about me: I work with electronics circuits (digital, analog, mixed and of power) and embedded products with microcontrollers since 199 Daha fazlası

in 3 gün içinde100$ USD
(8 Değerlendirme)

hi, i am an electrical engineer and i have an experience in designing electronic circuits, PCB layouts and microcontroller based embedded systems. i can design your project with efficient output response. for furth Daha fazlası

in 7 gün içinde70$ USD
(5 Değerlendirme)

Hello! I have experience programming in C / C + + for almost 20 years. Devices based on Arduino, I'm doing more than 3 years. I have experience writing applications "client-server" for the Arduino. I have experienc Daha fazlası

in 10 gün içinde100$ USD
(2 Değerlendirme)

Hi I can write the program for you.........................................................................................

in 7 gün içinde111$ USD
(1 Değerlendirme)

A proposal has not yet been provided

1 gün içinde 45$ USD
(2 Değerlendirme)

Hi! My name is Sebastian. I am an Electronics Technician and have plenty experience using Arduino boards. I'm sure I can help you with your project, developing the software and the required circuits. Also I can hel Daha fazlası

in 3 gün içinde35$ USD
(1 Değerlendirme)

Hello! My proposal is to implement this on an arduino uno based board. 1day to provide schematics, 4 days to write code and debug. I have all to develop the firmware (arduino uno, the keyboard, leds). Some issues must Daha fazlası

in 5 gün içinde111$ USD
(1 Değerlendirme)

I'm Mechatronics engineer. What do you want it's call an "Access Control". I have made Access controlers on Microchip's 18F4550 pics connected with a PC and a webcam; but if you have an Arduino is much easier. Daha fazlası

in 7 gün içinde88$ USD
(0 Değerlendirme)

Hi, I have a lot of experience in electronics and CAD designing. I can do this device for you within 2 days. I can send many of mine works. I was designing devices such as: mars rover (competition University Rover Ch Daha fazlası

in 2 gün içinde30$ USD
(0 Değerlendirme)

A proposal has not yet been provided

1 gün içinde 35$ USD
(0 Değerlendirme)

A proposal has not yet been provided

in 7 gün içinde30$ USD
(0 Değerlendirme)

I am new to Freelancer, But have 6 years of experience in Embedded Design and Development. Finished more then 10 industrial products.

in 5 gün içinde50$ USD
(0 Değerlendirme)