Hi, I am taking the liberty of jumping in the conversation. I am basically consultant in Embedded/Business for Yuktix Technologies.
Raspberry Pi , Model B+ will cost INR 3,000. But again RPI is not a industrial grade board and is prone to Noise, so things might go wrong while we test it in field. Also with respect to the farmers that are not in cash crop, we need to make hardware at low cost if we are going in DIY way. On Mon, Aug 18, 2014 at 12:50 PM, Narendra Sisodiya < [email protected]> wrote: > I think, they need some circuit which can send SMS. > My research says, they need some signal controller (SC) which send ON/OFF > signal to keyboard of mobile. And some unique pattern on ON/OFF signals. > For this we can use DTMF IC and a old phone. > So when somebody give a misscall to the old mobile, automatically SC will > be activated. Once the SC is activated, SC send ON/OFF patten to keyboard > of mobile, something like > "Menu" + "Right Arrow" + "Right Arrow" + "Enter" + "O" + "N" + "Send" > using this sequence, unique sms will be send to predefined number. > If we want to use SMS, then we need to add a GPRS module and again that will require some amount of R&D. DIY people generally use SIM900A but that in not reliable. Other options are Telit and U-blox GSM/GPRS modules. > > The alternate way is to play with AT Command. Once Circuit is activated, > it read last miss call number and then it send sms back with status. > I found http://www.serasidis.gr/circuits/smscontrol/smscontroller.htm > But it do not meet exactly with the requirement ! > Doing stuff with GPIO pins of RPI is again not suitable due to noise prone capability of RPI GPIO. > > > Also, there is 3rd way to accomplish the task !! > When user give a call to the mobile, remote mobile can reject the call > (receive call) or attend the call (pickup) or not attend the call > (miss-call). > using this, user can differentiate that whether motor on ON or not.. > ON = busy rigntone.. user cut the phone.. > OFF = user you are calling not available ... > In thiscase, all we need one wire from keyboard !! > > @Arshpreet - > > How much Respberry thing will cost ? > Raspebery PI Model B+ cost 3k. > > > > > 2014-08-18 12:30 GMT+05:30 arshpreet singh <[email protected]>: > > >> On 18 Aug 2014 11:54, "Narendra Sisodiya" <[email protected]> >> wrote: >> >> > I want to know possible solution where "Kisan" should be able to >> control >their motor as well as they should be know the status of motor (ie >> On or Off) >> >> IMO Respberry pi can help us. Or you want someting less costlier? >> >> Csn you provide more details like photographs of model and working video? >> >> -- >> -- >> Mailing list guidelines and other related articles: >> http://lug-iitd.org/Footer >> >> --- >> You received this message because you are subscribed to the Google Groups >> "Linux User Group @ IIT Delhi" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> > > > > -- > > *Narendra SisodiyaUI Architect @ *Unicommerce <http://www.unicommerce.com> > Delhi - Bharat > > -- > -- > Mailing list guidelines and other related articles: > http://lug-iitd.org/Footer > > --- > You received this message because you are subscribed to the Google Groups > "Linux User Group @ IIT Delhi" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- -- Mailing list guidelines and other related articles: http://lug-iitd.org/Footer --- You received this message because you are subscribed to the Google Groups "Linux User Group @ IIT Delhi" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
