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A simple coin sized communicator - open to bidding

$30-250 USD

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已发布超过 9 年前

$30-250 USD

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Hi Dean, Hope you are doing great. Here is my requirement. I need 2 US quarter coin sized communicators with a button, an LED in the middle and a small speaker to make a beep. When I push the button on coin1, the LED light and beep should turn on on coin2. The vice-versa is true. For the communication protocol between two coins, we prefer XBEE because it offers long range. If not, bluetooth works fine too. This is for kids playing purpose and our maximum budget per unit is $2. Our maximum time line is 2 weeks and we are ready to bear your time and developmental costs until $200 USD. Please reach back to us if this is interesting to you.
项目 ID: 6508096

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活跃9 年前

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Hello, I see that you have a special post form someone but If you for reason change your mind I can help you build those devices. I am planing to use a radio transmitter on 24Mhz or 433Mhz or eaven 2.4GHz because there are small and cheap, but not can not meat the 2$ per unit price piece. The smallest price that I cahce calculated is 5$. About me: I have 8 years of product design in the automotive industry. I am an expert in: - Dc - Dc converters - USB charging - accelerometers, gyroscopes - GPS and GSM - LCD Displays - LED power calculation As a Layouter I have 5 Years experience. I am an expert in : - Power Dissipation Calculation - EMC Rules - Impedance Calculation - Manufacturing Rules I have made Layout for ARM processor. Work also with BGA footprint. I have done projects even on 10 layer. So I know how to build a layer stack up. As Layout and Schematic software I am an expert in Eagle, PADs, Zuken. As Simulation software for the Schematic I used LTSpice. If you want more information feel free to contact me.
$250 USD 在12天之内
5.0 (7条评论)
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hi... i can design your project in Altium Designer.. i ll provide to you schematics, PCB, BOM and gerber files and what you need im interesting your project, pls give me more details.. thanks..
$200 USD 在5天之内
0.0 (0条评论)
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Hi there! Hi there. My name is Keith and I am a professional electrical engineer here in the US. I graduated Vanderbilt University with a BS in mechanical engineering. I now work solely as a contracting designer and freelancer. I am knowledgable in all sorts of microcontroller implementations, circuit design, sensors, mechanical systems, wireless and more. I am hardworking and understand that when all is said and done, my clients need a product that works well and done direct to your specifications. I invite you to have a look at my profile resume and portfolio. Thank you for your consideration! - Keith B
$147 USD 在3天之内
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UNITED STATES的国旗
United States
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会员自8月 10, 2014起

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