I trying to set up a GSM based gadget that uses a SIM card, senses motion and texts you with a preset message that "Motion has been Detected" Operating frequency is 850, 900, 1800, 1900MHZ. Can I use Koodo? I have been getting mixed answers. So GSM or CDMA
This little box has a PIR motion detector not unlike the one you find on your motion activated light connected to a GSM module and runs a simple script held on a tiny flash chip. One may text it with '0000' or '1111' to turn it off or on respectively. It is bound with the number 10 seconds after installing the new full sized SIM
For anyone who finds this mildly interesting they can be had at Ebay for $9 USD However it might be better to make the device from the component parts rather than this item known as Mini GSM PIR Text module. It is getting mixed reviews, there is no antenna so it might be short of RF elbow grease. Tiny PCB type antennas are maybe good for Bluetooth (30 meters at best) but not for cell phone frequencies like 850MHz. Even a quarter wave antenna for this frequency is quite longer than the little box that comprises this Chinese Gadget.
Thanks for your attention and kind assistance