Sure, Fritsl wasn’t trying to fool anyone this time, but if he doesn’t develop a bit of discipline and rigour, eventually it may come to that. The road to hell is paved with good intentions and there are plenty of investigative journalism programs on television where the producers just love to go and visit people like Fritsl and humiliate them in front of a national audience. For example, with the rise in fuel prices recently there’s been a spate of magical devices on the market that are supposed to make your car use less fuel. You’ve probably seen the kind of thing that I mean and I don’t have to elaborate.
Anyway, I don’t think I was being harsh by any reasonable standard, though admittedly what started out as constructive criticism escalated into a measured response. Fritsl obviously isn’t used to being criticised and didn’t cope with it very well, and I am very disappointed. However it’s a necessary part of personal growth and for his own sake I hope he finds the maturity to take such things on board with a bit more grace one day.
It’s a pity that you don’t want to share your equation. I’ve performed plenty of similar experiments myself, even in the knowledge that many greater minds than mine have gone before. It took me a lot longer than five minutes to do too, but it was an extremely enjoyable and educational experience. In the end I came up with some useful outcomes and I am proud of my results too, even if they were nothing new.
However I am always looking for better ways to do things and I don’t understand why you aren’t willing to do that. It’s the willingness to expose yourself to criticism which ultimately makes the difference between becoming informed and remaining ignorant.
I may be wrong on this, but I don’t think that it’s the critisism that he didn’t cope with, I think it may have been the percieved response wasn’t what you were expecting. I think fritsl likes to keep things light hearted and sort of jokey(at least from what I’ve seen of his other posts)…I’m sure if he needed or wanted to be serious, then he could. It was a simple device that he worked out. it may have it’s quirks…but regardless…he’s not going to the news and saying he just invented some amazing device.
As for my equation, I’ll post it on my blog when I get my bot up and running…critisize all you want when it’s up there.
Of course I am childish - I am an adult making fun little robots
I know that GroG really was only 90% there… However, he was 90% at the right direction where the rest was some 0%, he’s input would have made me make it, so I did not see any reason for taking it any further without showing you how I did it
Regarding the “it would not be possible to extract the signal of the LED against a background of noise from mains powered lighting” - well…
I think your solutions sounds way too complicated for me. And not very good at a distance.
If it was a problem I would just take 3 samples on / 3 samples off for each cycle, and use average on each. It would still be as fast as an SRF05 for every cycle.
So far it has not been a problem, but eventually I will try to optimize so that it can go as close as possible to any light source, so I will insert some leveling out in later versions.
All you write is relevant for the purpose of this site. You are inspiring people to make robots and share ideas.
You are not filling it with irrelevant junk and or personal problems communicating.
I am sorry that I disappointed you, but thank you for maturing me, giving me personal growth and all. It is nice when someone protects me like you do from journalists.
You have taught me a lot about life with this, and I will behave much better from now.
Thank you.
Please write much more like this everywhere you can. And longer if possible!
Intensity All LEDs are not created equal. It may be that the red LED has a higher intensity of light than the green. A bright light is always going to be brighter than a dim light regardless of its colour.
That was quite an interesting thought, I think; For the “long distance” (25-30 CM’s) versions what i do now is just measuring perhaps 10 times, and calculate the average. Then switch LED on/off and do the same - to get the 2 values that are substracted from each other to form the all important Difference that we are only caring about & working with here.
However I have begun to work with old fashioned light bulbs for project FritsLDR now, replacing LED’s. Reason is that I can make more light that way, much easier, simple old fashion flash lights. Of course it is not that practical because it is so slow to turn itself on / off, so the task is to wait just till it is full on before turning it off, and then measure.
Well… Your idea, Zack, could improve this: Instead of knowing how long it takes for the bulb to be full on, it could just be measured, that might work!
Yes. And they give me distances of up to 30 CM - it seems like a wall - more than 30 CM is achievable, but only in controlled setups. In the hard world of reality, 30 CM is max max, 25 is normal max.
