My wireless water-level sensor is working fine, and when deployed in the sump-well, it is giving me periodic readings quite well. At this stage, I have the circuit still on a breadboard, and now plan to put it on a veroboard, and finally install this thing in the sump-well for long-term reading p...
I want to use a single GPIO pin, to provide 'Enable' signal to 3 other devices, one after the other, with slight delay. Would an inductor with a flyback-diode be a acceptable way of achieving something like this ?
@AnindoGhosh well, given that this is for an educational project, I'll try to stick to whatever is available off-the-shelf. Seeking the services of a rare laser cutter here, is going to be an overkill... though it could be fun thing to do.
I was actually looking at a geared motor that can go down to 0.1rpm. Found that the only way to do it is set up the right gear-combination on your own. Now that's hard for me. Hard to source the parts and may be, not so easy to rig the gears up right. Stepper motor seemed like a good and easy alternative, although the jerky-ness would be quite telling.
While the name ("Continuous rotation servo") gives a good deal of hint, but I'm wondering (like a noob), it's the difference from stepper motors is the ability to rotate the other way ??
I see lot of these micro servo motors on ebay advertised for application in RC helicopters. Since I'm an absolute noob when it comes to motors, I was a bit stumped because I thought servos are positional with rotation possible in an angular range of +/- 200 deg... so, are these servo motors only for the yaw, tilt, bank control ? I'm assuming that the main rotors are just a geared DC motors, right ?
@rawbrawb excellent, then this is the place to be. strangely, I am a fish out of water here... not much of a mountaineer. Prefer the fossil-fuel drinking mules to go uphill, and that's about as far as I go.
Wow, that's like a long time ago @Anindo. I moved here rather recently (little more than 2 months), but I am told that even 7-8 years back, the town was an order of magnitude smaller. Hard to beat the view you get here.
same page, on the police radio timeline, at 12:48, the description says the 1st suspect was shot, and mentions nothing of being run over ! anyhow, it's mayhem, and these things are hardly ever completely black-n-white.
Actually it's all over BBC as well... and quite frankly, BBC's video feed quality is about a decade ahead of CNN's (no offence). At least on my TV set.
Electrical Engineering
Electrical Engineering