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15 Multisensor Arduino boards for temperature, umidity and co2 + display and proximity sensor

$250-750 USD

In Progress
Posted over 7 years ago

$250-750 USD

Paid on delivery
I need 15 arduino small boards to mount inside wall box. The project max size should be 80x40x35mm, of few mm more on one size. There is some work to create the pcb to connect all the sensors below On each one I need to have rs485 screw holes to connect the rs485 cable and share the read values via modbus. The sensors on board should be Sensirion sht31 to provide temperature and umidity (with good thermal isolation from other board compnents), a co2 mh-z19 sensor and a small pir or other proximity sensors to detect movements and power up the display. These should be on the right part of the board near the cover of the box, where I'll do some holes for aeration. On the left part I would have a 1.8" color display to show read values, a couple of calculated values, some I get via modbus, date and hour. On 3 of this sensors I would put a voc sensor too like figaro tgs8100. All the components should be low consume to produce few heat. I need you provide hardware and software source code. I need a prototype first and then we'll go on with the other sensors
Project ID: 11376978

About the project

7 proposals
Remote project
Active 8 yrs ago

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7 freelancers are bidding on average $855 USD for this job
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Hi, I have read and understood the project description and possess the skills required to meet your needs. Please give me a chance and reply. Thanks.
$842 USD in 3 days
5.0 (2 reviews)
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Hi, I have worked on temperature, humidity and CO2 sensor with Arduino. I can execute this project in less possible time. Looking Forward, Khawaja
$631 USD in 10 days
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aHi 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 etc. We offer you our services at very low rates. Please discuss your project in detail. We will deliver design and code, if you want us to send you prototype, you have to pay additional charges of prototyping and courier such as dhl etc. We are very friendly in nature and will help to clients during and after projects completion. We are flexible in communications and rates. Very much looking forward to hear from you on this in coming days. Regards, Ahmed Lead Technical Engineer Turktroniks
$300 USD in 20 days
0.0 (0 reviews)
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Hello, We are a team of embedded hardware and software professionals with experience in complete system design, development, prototyping and manufacture. We do Circuit design, schematic and PCB layout. Would like to know more details about the project. Looking forward to work on this project. Please feel free to contact us for any further discussions. Thanks and Regards EmWorld
$250 USD in 10 days
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Flag of ITALY
Pisa, Italy
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Member since Aug 27, 2016

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