External alarm unit

€250-750 EUR

Terminado

Publicado

hace alrededor de 6 años

€250-750 EUR

Pagado a la entrega

PS is producing an electronic lock for furniture. There is a piezo buzzer inside but the loudness is too low. Right now we are using the buzzer HC-12085 Things to do: - Create an external alarm unit with a very loud buzzer - The buzzer should be a standard product and worldwide available - You will get a HIGH or LOW signal and +/- 3V from the main lock - As soon as the signal gets LOW, the buzzer have to make noises - If possible, work just with the 3V DC from the lock, if not, we have to add an additional battery or capacitor or .....whatever we need - Creating production files including Eagle files

Electrical Engineering

Electronics

PCB Layout

Product Design

ID del proyecto: 16618017

Información sobre el proyecto

11 propuestas

Proyecto remoto

Activo hace 6 años

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Adjudicado a:

@sagradoamicus

Hi I am experienced circuit designer, I am designing the alarm systems since my last few years. Please review my profile to see the feedback from my previous employers Waiting for your reply to move forwards Regards

€555 EUR en 10 días

4,9

(249 comentarios)

8,0

11 freelancers están ofertando un promedio de €409 EUR por este trabajo

@shahbaz1980

Hi There, We will design and prototype the Circuit to make sure that our design works well. We have worked with loud buzzers 100db working on low voltages. Please feel free to contact us. Regards, Shahbaz.

€700 EUR en 7 días

4,6

(50 comentarios)

7,0

@CoherentTech123

Hello Dear, I am an expert with more than 15 years of experience in the field of embedded systems, electronics, prototyping and PCB Layouts. I assure you the best solution for your work. Regards Ch

€500 EUR en 20 días

4,6

(43 comentarios)

6,0

@mohameedtareq

Hello sir I can do it for perfectly with the required specification Embedded system engineer with three years experience in electronics and electrical circuit design. I have proficiency in following software tools: Electrical circuit design Arduino IDE pcb design microcontroller programming ,interface plc programming scada system design Siemens S7 programming Electrical circuit simulation thermal control system building circuit (low energy control) bluetooth NodeMCU programming IOT (internet of things) Mplab(x) IDE micro C IDE PCB manufacturing thanks

€255 EUR en 10 días

4,0

(17 comentarios)

5,0

@schoudhary1553

Hi there..... Warm Greetings We came along with your request for External alarm unit and we reviewed your project description. We'd like to help you with confidence and satisfying results... We have professionals working here with 100% results and more creative and renovative ideas for our clients ! We have worked on several similar projects before! We are offering our services for more than 5 years in the field of Electrical Engineering, Electronics, PCB Layout, Product Design We have worked on 300+ Projects. Please check the profile reviews Feel free to message us to discuss briefly about your project !

€350 EUR en 10 días

5,0

(2 comentarios)

3,4

@nykytenko

Hi. I have over 15 years of experience in PCB design. Some my last projects you can see in portfolio. Please see my profile for details. I can do schematic and PCB in Eagle with all required files for manufacturing. Ready to discuss project details.

€390 EUR en 10 días