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Optimal Temperature sensor to implemente in a Greenhouse´s environment control system.

Eduardo Ortega
Prodigy 20 points
Other Parts Discussed in Thread: LM35, TMP107, TIDA-00484, TIDA-00800

Hello everyone, first of all I would like to thank to the TI team which makes this incredible platform possible. I am getting started in a project which involves a dedicated control system to maintain temperature and humidity within an optimal range in a Greenhouse. 

A long time in the past I used the LM35 to measure temperature in a local site. However, I am not used which would be now the best option to get a more accurate value for the temperature inside the greenhouse in real time. Is there an specific component you could recommend to measure the temperature on the environment with high conffidence? 

I am going to control a 100m2 area so I am sure I will need to create an array to be able to control sucha a big space efficiently. 

I appreciate your comments and suggestions! 

Best Regards!

  • 0
    TI__Intellectual 910 points

    Eduardo, 

    Are you planning on a wireless or wired array of sensors?     If wired, I'd suggest taking a look at the TMP107.  Its designed to operate across a cable and offers the capability to daisy-chain up to 32 temperature sensors, reducing cabling and installation costs.    

    If you're looking for a wireless system, check out TIDA-00484.  Its a complete reference design for transmitting temp & humidity over wifi with a 10 year battery life off a coin cell.    If only temp is needed, you could easily swap out the sensor with any of our other local temp sensors. http://www.ti.com/lsds/ti/amplifiers-linear/Local-Temperature-Sensor-products.page

    You might also want to check out TIDA-00800 TI Design which shows how to mate a TMP107 chain of temp sensors to our SensorTag reference.  

    -Daniel

  • 0 in reply to DMAR
    Prodigy 20 points

    Hello Daniel, 

    Thanks´for your feedback. I am planning on a wireless array so I think the TIDA-00484 could be a better option. I will definetly go ahead and review the datasheet and all the specs to verify how many of them  I will need to cover all the area. 

    Is there a specific receiver I should use in order to get the signals into any PC or can be any thir party wireless card?

    Regards!

  • 0 in reply to Eduardo Ortega
    TI__Expert 8785 points

    Eduardo,

    To receive packets, you'll need to use CC1111 hardware and Smart RF protocol packet sniffer software.  For more information, please see section 5.3 in the TIDA-00484 design guide.

    Regards,

    Christina