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of course it was advice and i really liked it :) ,that was kinda helping
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Great, I'm glad it helped.
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but u asked why i used FPGA , so in the future i can implement my project in mass production using ASIC'S would be much more cheaper than microcontroller isn't it?
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Not unless you are selling 10k units per month. ARM Cortex series microcontrollers are ~$1 (LPC8xx series).
http://www.mouser.com/new/nxpsemiconductors/nxp-lpc800/ TI MPS430 devices are cheap too.
https://estore.ti.com/msp-exp430g2-msp430-launchpad-value-line-development-kit-p2031.aspx If you want to make this "cheap" then using an off-the-shelf microcontroller is hard to beat.
If you want something your phone can talk to, then buy a Bluetooth Low Energy kit, eg., TI and Nordic have them
https://estore.ti.com/cc2540-mini-development-kit-p2190.aspx http://www.mouser.com/productdetail/nordic-semiconductor/nrf51822-dk/?qs=sgaepimzzmvquebtxbmqhzojdvgx4vk9 iPhone 4S and newer "speak" BLE.
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Also about the xbee communicating with cell phones it won't , it will jsut receive data from other interfaces such air condtion and send it to FPGA , FPGA through GSm module would contact the Cell phone
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Ok. When you write up your report, make it clear that you understand there is a difference between the different RF protocols.
Cheers,
Dave
Honored Contributor
