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I need hundreds of sound relay delay circuits made that are similar to the one in above link. however it needs a few modifications. I know you do not manufacture the boards, but if I can get the gerber, bom, pick and place, etc files from you I have a good manufacturer that an do the rest.
First let me describe the purpose of this circuit.
I will be using an ipad to take photos of people automatically. The app I uses plays a beep noise through the 3.5mm headphone jack
the other end of the cable is connected to the circuit board where the microphone is currently located. The circuit would hear this beep and turn on a relay switch to turn on 12v 8a white led lights. I need to use a 3.5mm audio cable instead of a microphone so that only the ipad triggers the lights and not external noises.
Please use as many SMD components as possible when designing the board. they are usually cheaper to assemble then through hole ones.
I need the following changes done to the circuit
1. replace the microphone with a 3.5mm headphone jack
2. the potentiometers need to have a fine adjustment so that I can choose the delay time of 1 to 10 seconds. It does not need to be longer than this for my needs. the components used on the web site are not very precise. I can mail sample board to you if that helps.
3. the input power needs to be a 5.5mm 2.1mm input DC female jack. Same for the relay out put power. This will make it easy for me to hook up the circuit to the led lights. the lights will always be in the normally off position.
Pleases let me know approximate cost and turn around. Max budget of $200 which includes one round of revisions of needed. For example, after you give us the files, we will get a prototype made and if a part needs to be changed then you will revise file to reflect that for no extra fee. If we require another change after that we will pay $25 per revision. If you can get this project done for less than $200 that would be great as well.
27 freelance font une offre moyenne de $166 pour ce travail
Hello, I am Anthony from Sri lanka. We are a hardware designing & prototyping company. Why you should hire me ? - I have seven years of experience in the field and have developed many systems. - I ha Plus
Hello, I can try to help you with your PCB project, I can design or modify the PCB board with eagle software. Also is a good idea send the current board to me then I can check it and make test with it. Deliverable: Plus
Hi I am interested to your project. I am familiar with electronics, microcontroller as well as PCB design by Eagle. Thanks.
As this is for photography so I am guessing the timing needs to be precise. So I would suggest you to go for a programmable approach than this purely analog method. Also instead of relay, I would suggest you to go for Plus
Hello. My name is Vusi and I'm an Electronic Engineer, you can learn more about me from my website at [login to view URL] I can design the PCB files using either altium, Eagle or KiCAD. And I will be avaialble to Plus
1 ) I have over 15 year experience of PCB Layout / Hardware / RF / EMI / Firmware designs, we can complete various design and layout requirements. # 8051 MCU / ARM Embedded system / Arduino / ST32Fx / IM6x / AVR Plus
Hello. I am an excellent circuit and PCB designer. I have worked in PCB design of 2 ~ 38 layers with very high frequency for 4GHz and high speed RAM interface. For embedded system and prototype development, I have r Plus
Master in Engineering, Electrical and Electronic Engineer, who is dynamic, reliable, resourceful, committed and organized with enthusiastic approach to succeed with a pleasant attitude. Possessing excellent analytical Plus
Hi, my name is Grigor. I'm an electrical engineer with 10+ year experience in PCB designing (with KiCad, Altium, cadence) and last project I was done is a "smartwatch"project for novatronics LLC which is a Russian comp Plus
hi hello nice to see your project my self vipin i am electronics engineer i have 4 years plus experience in PCB and hardware designing i have read you project description and i would like to work on your project. th Plus
hi sir, Ian very interested on this job and I understood your requirement. I always support first time right design. I under stood your budget also . I will support in less price only For designing i will take Plus
hello sir, i am from shenzhen china, i can design , build and test your samples. please share more info about your project like PCB size.
hello i am a computer engineer,i have masters in computer engineering,i have experience for more than 7 years in arduino and electronics i can help u to achieve ur goal in this circuit quickly and efficiently
With more than 4 years of experience working on electronics. I'm specialized on pcb and pcba design with different circuits such as power, signal, high frequency... I also offer hand soldered prototyping smd circuit Plus
i can do this i already do many project like that . i have do many military standard project.i have design upto 16 layer pcb board with length matching and impedance control design.i also use hyper lynx for signal inte Plus
Hello! We have many years of experience in the design and manufacture of printed circuit boards and electronic devices in general. We can make a gerber file based on your requirements and circuit for two days.