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Battery powered logger with GPRS using Netduino plus 1 / 2

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#1 pabalven

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Posted 18 February 2015 - 06:54 PM

Hi all,

 

I'm new to the forums so first of all thanks to anybody that may help me in finding a solution for the project we are considering.

 

We are trying to build a logger wich is able to count pulses coming from a digital input, store periodically the count in a file in the SD card (say every 15 minutes) and periodically transmit them to a web/ftp server using a GPRS data connection (this also means that the Netduino needs a "clock" to know what time is it. Internet connections to time services are discarded due to power considerations). It is also a requirement that the device can receive incoming connections for parameter adjustment...

 

Additionally, the device should also be able to control a couple of water valves via digital output (I guess this is directly possible with Netduino digital IO). And finally, it should be able to work in a stand alone environment, with no power supply aside from rechargable batteries combined (if possible) with a small solar panel for battery charge. Note that this is going to be in the field, which means that constantly replacing batteries is not an option. Those should last for 1.5 - 2 years ^_^'.

 

The first thing we thought when receiving these requierements was Netduino... but I'd like to know if someone has done these before. We've been searching but haven't found a Netduino configuraton like this. Do you think it's possible? Which shileds should be necessary to get all the required functionality?

 

Again, thanks for your help. Really appreciated.



#2 pabalven

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Posted 25 February 2015 - 09:16 AM

Good morning everyone,

 

any advice on this...? :rolleyes:  Thank you.



#3 herbsti72

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Posted 25 February 2015 - 05:35 PM

I am also planing to use my Netduino 2+ to operate irrigiation system in my garden.

 

I plan to use:

  • Solarpanel together with rechargeable batteries
  • LCD panel
  • temperature sensors
  • bluetooth to remotely operate it
  • Solenoid valves for open and close the water pipes.

 

LCD and temperature/humidity sensors are already working, next step is to get solenoid valves working (I already ordered one for testing).

I found somebody who did similar with Arduino/RF Transmitter:

http://rayshobby.blo...controller.html

It seems it is important to use some DC/DC step-up converter/MOSFET to operate solenoid valves.

 

For solarpanel and battery take a look on Sparkfun website, for example :

Charger: https://www.sparkfun.../products/12885

Battery: https://www.sparkfun.com/products/341

Solarpanel: https://www.sparkfun.com/products/7840



#4 GonzaloG

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Posted 25 February 2015 - 08:32 PM

Although I really love my netduinos, for your application I would rather use another platform.
Check this out... http://www.libelium....ducts/waspmote/

#5 herbsti72

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Posted 26 February 2015 - 10:12 AM

thanks for your post and link - the device looks really good, may in future projects I will switch to this kind of devices :)

But for now I try to learn eletronics and programming microcontroller and as I already own two Netduino 2+ I will try to use this before buying new devices.

 

Because of your link I also found this:

http://www.cooking-h...-ch/open-garden

Seems they sell quite nice shields, sensor and valves for irrigation systems.



#6 pabalven

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Posted 26 February 2015 - 03:23 PM

Thank you guys for your advice. I'll check the device at libelium... looks promising.



#7 pabalven

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Posted 10 March 2015 - 09:15 AM

Hi everybody. After a few days of investigation, I decided to discard libellium solution. The basic board does not seem flexible enough at it is very oriented to be used with its own sensors. Additionally, I contacted the company via phone and e-mail, and their attention and response was quite disappointing... specially considering that the project I am involved in may become a commercial solution with hundreds of devices spread in field.

 

My question now is quite simple. Can this module be used with Netduino?:

 

http://www.seeedstud...tml?cPath=19_20

 

I've been able to make it work via AT commands sent to the serial port with an Arduino, but not with a Netduino. Is there any difference in how should this module be connected to Netduino compared with Arduino? Have you ever tested it?

 

Any help is really appreciated. Thank you so much!!



#8 Juzzer

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Posted 10 March 2015 - 09:45 AM

Yes that module can be used.

 

I am building a similar device over the coming weeks running NETMF so if your interested drop me an email.







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