According to the data sheet “In order to make the voltage regulator stable, at least 22 μF
should be connected between VREG pin and ground (suggested value is 47 μF).”
As far as I can see on circuit diagram, there is no cap connected to VReg, yet it is (apparently) used as part of the reference for the A-D for doing the motor voltage compensation.
I totally agree, for everybody else in the world these is like running your fingernails across a chalkboard! It sounds like something you would be arrested for!!!
“Robert C, you are hereby charged with ‘Sodering’, how do you plead?”
As for a “Sodering iron” – I don’t even want to think what that might be used for!
Lookup dictionary.com for ‘Soder’ and what do you get? – Soder
Sod"er\, n. & v. t. See Solder.
If this is on all the time, rather than switched in occasionally, it will contribute to current drain and therefore flatten the battery quicker. This may not be too much of a problem with high capacity batteries, but will be with some. A low current comparator or something like that would have been a far better design than what is effectively a shunt regulator that will drain a relatively high current.
Try getting Firefox and adding the add-on ‘Ad Block Plus’ and the ‘Element hiding helper for Ad Block Plus’ – I can’t believe how much more ‘peaceful’ it is to be on some sites now. :)
It leaves ‘still’ ads alone if you like and can easily be disabled for a particular site. You can easily select any annoying ad to have it blocked from then on. I’ve found it so much nicer since having it.
Product KIT-11087 | last week
Yeah, that’s a good idea, keep the drain to a limited time.
News - MiniBot Class Reminder | about 2 weeks ago
They are working on it – perhaps not this particular class, but in general, they gone over that many many times
Product BOB-10859 | about 2 weeks ago
According to the data sheet “In order to make the voltage regulator stable, at least 22 μF should be connected between VREG pin and ground (suggested value is 47 μF).”
As far as I can see on circuit diagram, there is no cap connected to VReg, yet it is (apparently) used as part of the reference for the A-D for doing the motor voltage compensation.
Product BOB-10859 | about 2 weeks ago
Any chance of posting that eagle file somewhere?
News - New Product Friday: Your … | about a month ago
I totally agree, for everybody else in the world these is like running your fingernails across a chalkboard! It sounds like something you would be arrested for!!! “Robert C, you are hereby charged with ‘Sodering’, how do you plead?” As for a “Sodering iron” – I don’t even want to think what that might be used for!
Lookup dictionary.com for ‘Soder’ and what do you get? – Soder Sod"er\, n. & v. t. See Solder.
News - March Caption Contest | about 2 months ago
I like to get my teeth into a good Sparkfun kit!
News - Vortical Filament | about 2 months ago
Trouble, what trouble? Just replace the string with the cat’s tail :D
(ok, just kidding, don’t want everybody flaming me! – Actually, Robert started it with “Kill the puppies”, now it’s “Twirl the cat” on the menu)
News - New Product Friday: Have … | about 2 months ago
It went to the dogs I believe.
Product KIT-11087 | about 2 months ago
If this is on all the time, rather than switched in occasionally, it will contribute to current drain and therefore flatten the battery quicker. This may not be too much of a problem with high capacity batteries, but will be with some. A low current comparator or something like that would have been a far better design than what is effectively a shunt regulator that will drain a relatively high current.
News - Free Day Text-Browser Con… | about 2 months ago
Try getting Firefox and adding the add-on ‘Ad Block Plus’ and the ‘Element hiding helper for Ad Block Plus’ – I can’t believe how much more ‘peaceful’ it is to be on some sites now. :)
It leaves ‘still’ ads alone if you like and can easily be disabled for a particular site. You can easily select any annoying ad to have it blocked from then on. I’ve found it so much nicer since having it.