Explain this bit for me pleaseThanks for the prompt reply.
The idea for the microSD was to make it easy for the wearer to get the access list of "who did I talk to at this event" (and also leverage the list for gamification). But it might be just as good to have a "readout PC" which would pull the data from the badge and send it via email / sumbit it to the game.
The target is ~500 badges.
It would help if you fully explain how you see this working and what its for. It might be easier/cheaper to use usb(and also leverage the list for gamification)
Explain the game side of things to me, I think if I understand what they are used for I will have a better idea of what you need.
It would help if you fully explain how you see this working and what its for. It might be easier/cheaper to use usb Alot depends on this gamifacation, will the badges be read at an event only or read from the person's pc later?
If its only to be read at the event then a simple IR rs232 interface to a pc would be cheap, if you want the user to read the badge at home then the usb method has merit,with SD you have the cost of the card and the socket, with usb you have the cost of a micro usb socket (cheap)
If its just at the venue then its a simple little box type solution (cheap/easy)
Great questions!It might help if you can answer some of the following
sorry for the questions but it helps to fully understand what is needed.
I cant see that for that sort of money, plus you have to get delegates to do it, the data could take all night to get. I am sure I can get a low energy micro running 4 day no problem, my recent foray into energy harvesting has taught me alot on making battery stuff last. There are bigger problems as I see it, People normally wear a badge on the left so two people facing each other have badges not opposite, the other problem with cost is a $ in the states buys more than a $ in the uk, for me it would be design and have made in china. The problem with data collection could be solved by a simple panel placed by the door on the way out, it would collect the data from each badge, or a couple of panels in the room and one at the door, then every time people go near the panel it downloads and clears the badge.You should be able to make it so you put it in a pod at night and it recharges itself and dumps its data each night.
Build Brighton Light Brigade badge: **broken link removed**
Trippy RGB kit: https://www.makershed.com/Trippy_RGB_Waves_Kit_p/mkce4.htm
DefCon 20 badge: https://www.wired.com/2012/07/defcon20-badge/?viewall=true (Parallax Propeller powered)
Note: although I have hands-on experience with the Parallax Propeller 1 - it's overkill for this project, thus I'm processor agnostic.
Interesting project, shouldnt be hard to do, you can generate tone burst rs232 suitable for tssop infra red receiver modules easy enough with a couple of external comps and a pics uart and pwm block.
The only issue I'd see with that is bright sunlight could swamp the sensor, you'd have to try it and see.
I like your avatar, interesting parody.
Yes your right, you only really see issues when you start a project.
There are solutions to most problems but that involves time and complexity.
More leds will improve the angle comms is possible at.
You'll also if there are many of these devices need to devise a protocol, maybe something like dallas's one wore protocol, so that all devices can communicate without contention.
Have you seen those little modules on ebay for using sd cards, just the job for this.
Constructive arguments allways accepted.
Just a thought; I don't think you will see much daylight in a convention hall.The only issue I'd see with that is bright sunlight could swamp the sensor, you'd have to try it and see.
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