This neighbor of mine has this weird and annoying habit of playing with remotes for TVs, stereos, well pretty much anything. Even if you see him coming, and hide the remotes, he'll eventually ask, 'where's the remote'. At his house, it's even worse, changes the channel every few minutes, volume up and down, switching between the stereo and TV...
So I got an fun idea, about recording the last remote button press, and sending it back out a few seconds later, or randomly. Thought it would be easy for a microcontroller, but got a hunch it would be sort of a memory hog, and really don't know enough if it's going to be fast enough to time and store the pulses. Got to thinking that maybe I don't need to really go that route, but need some help. I was thinking maybe I could use a voice recorder to capture the pulses, and just have to play them back through an IR LED. I don't know much about remotes, how important the very first pulse is, or how long I have to start the recording, once the IR receiver module detects it. Will probably use a microcontroller to handle switching between recording and playback, more timing options. Would be nice to just burn it all on one chip thought, so it could be a much smaller device, easier to conceal, and cheap enough to leave behind...
Haven't really dug into this idea much, mostly a few searches to see if it's already been done. Little lazy this week, cold and rainy, and overtime at work. Will looks more, and dig out a voice recorder to play with, to see if it can record and playback a remote signal manually in the first place. Figure the remote's carrier frequency is in the 38khz range, so might be a little too high to work directly. So many things I don't really know about, but just got a feeling it can be done.
So I got an fun idea, about recording the last remote button press, and sending it back out a few seconds later, or randomly. Thought it would be easy for a microcontroller, but got a hunch it would be sort of a memory hog, and really don't know enough if it's going to be fast enough to time and store the pulses. Got to thinking that maybe I don't need to really go that route, but need some help. I was thinking maybe I could use a voice recorder to capture the pulses, and just have to play them back through an IR LED. I don't know much about remotes, how important the very first pulse is, or how long I have to start the recording, once the IR receiver module detects it. Will probably use a microcontroller to handle switching between recording and playback, more timing options. Would be nice to just burn it all on one chip thought, so it could be a much smaller device, easier to conceal, and cheap enough to leave behind...
Haven't really dug into this idea much, mostly a few searches to see if it's already been done. Little lazy this week, cold and rainy, and overtime at work. Will looks more, and dig out a voice recorder to play with, to see if it can record and playback a remote signal manually in the first place. Figure the remote's carrier frequency is in the 38khz range, so might be a little too high to work directly. So many things I don't really know about, but just got a feeling it can be done.