I would like to hire a Programmer

已关闭 已发布的 7 年前 货到付款
已关闭 货到付款

Hi

I am considering an Arduino or PI based project and because I don’t have the competence to properly develop the code (without taking a long time) I am examining the possibility of paying someone to write the code for me. As such the following is the briefest outline of my ideas.

I would appreciate some feedback particularly with regard to the feasibility and complexity of my goals (i.e. can it be done and will it be simple).

I want to be able to use a touch screen (5” or 7”) to independently switch 4-5 audio inputs to any or all of 4 audio outputs. For example, selecting input A on the home screen would then bring up the output screen where any or all of the outputs can be selected, then by pressing a select-enter option the system returns to the home screen where input B, C, D or E can be chosen which again moves to the output screen where any active outputs are coloured and the unselected outputs are free. I am thinking there would probably need to be some kind of block/message (e.g. this output is in use, do you want to switch it to a new input) where an attempt is made to connect an input to a currently active output. One consideration I am having difficulty with is that because this will be regularly powered down, how would the Arduino record which DTDP latching relays are (were) set (to Normally Open) before the power was disconnected, i.e. the latching aspect of the relays means they will still be connected until the reset (Normally Closed) function is triggered.

I would also like to be able to include an audio Bluetooth connection as one of the switched inputs but I’m not sure how to accomplish this, perhaps a separate board.

I am thinking of accomplishing the switching through shift register chips (e.g. 74HC595) triggering DTDP bipolar relays. The relays will most likely all be 5 volt dual coil and be powered separately. As best as I can work out a 4 input - 4 output setup using DTDP relays will need 16 relays with each relay requiring 2 switch pins (one to latch and one to release the relay) making a minimum of 32 shift register pins (so 4 shift register chips) .

For reference, I have included a link to the JOS Functions video (produced by jersagfast) which demonstrates a similar type of operation, I think his settings function is a good idea; [login to view URL]

So, what do you suggest/thing, is this a practical idea, Arduino vs PI, onboard vs external Bluetooth?

Regards.

编程

项目ID: #11795074

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11个方案 远程项目 活跃的7 年前

有11名威客正在参与此工作的竞标,均价$451/小时

ahmad5857

Hi sir, We are team of expert engineers who are sound experienced in embedded systems (arduino + other microcontrollers), programming, circuit designs, electronics, product designs, pcb layouts, database management, 更多

$200 NZD 在15天内
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SabidHabib

Hello Sir, I am very experienced in programming languages and I can deliver your job efficiently. Let's discuss your project detail.

$60NZD 在1天里
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dineshmore

Hi Myself expert in asp.net (webforms and mvc5), c#.net and sql server with 11 yrs of experience in software development. Developed various applications for finance, insurance , education and research domains. 更多

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mohsamhii

A proposal has not yet been provided

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dgrcia

Hello, did you heard about analog multiplexers? For the bluetooth audio there are some modules that can be directly connected to Arduino, no problem with include a TFT touch display with JOS library. Would be nice to 更多

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morganthedark

I have a few ideas, but it really depends on your application. I think it would be best to forego the touchscreen in favour of a smartphone and Bluetooth, physical buttons, or both. In terms of maintaining knowledge o 更多

$100 NZD 在7天内
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ranganathp

FREELANCER RECOMMENDED ------------------------------------------------------ Can help... I am an Expert... Lets Start! Please start a Discussion with me and we can get started from there... Please check the past p 更多

$3000 NZD 在30天内
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huzamhussain

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