I have a new project idea but not sure if it is realistic or not.
I want to build a simply GPS system that will send updated info regarding its location and traveling speed. By receiving the x and y coordinate, I can pin point the location of the bus. Sound simply enough.
I want to do this without a computer system, onboard the bus. I can do this with a micro controller, which I learn in school. Just need to figure out a way to connect the handheld GPS to the micro.
The only really problem I see is sending this information back to our main station. I want to do this via SMS or Email. This will require a GSM modem or something that goes through the cellular network.
The problem with GSM modem is cost... The one I am looking at is http://www.emacinc.com/sbc_pc_addons/pcm_36e06.htm
which cost around 350 usd!! I am not expecting any funding from the company....
Any cheaper GSM modem out there? or another alternative way of transfering data? Even WiFi can be consider, our city has free WiFi within the city... WiFi sound complicated to me, having to get connected and setup some kind of protocol to transfer the data... where as GSM modem can just send off SMS or email...
Reason for this project is to gain experience, need something for my resume~ And besides, building something that will benefit the company might pay off in the long run.