Recent content by seaner

Power is energy per unit time. So with a 2400W element, if you turn it on for 500ms and off for 500ms, you are operating it at 1200W. Would need an SSR to do this well.

the ntc-lut-generator is not an arduino project. it's meant to be compiled on a unix-like system.. you should not need to use it. (sorry, late to the party.. didn't see the other replies :P )

If you're going to be present, you could also just manually bump the temperature a degree every 2 minutes :)

hehe.. only 28 more instructions to implement CRC-8-CCITT :) (or 83 more for CRC-16-CCITT)

Well, optimization has been going well.. I think we've shaved down around 15% of the code so far, and probably room for another 5% or so. Should be lots of space for new dual-probe algorithms. I'm going to rig a unit up with dual probe and 1-wire comms on the heating relay pin and do some...

hey folks.. does anyone have a part number for an appropriate 3-pin terminal block to replace the 2-pin probe one for a multiprobe setup? Anyone happen to know the pitch of the holes? looks like 5mm? No need to use the same 10A/300V rated ones that are on there already... maybe this one...

it's a shift & store. but they go and unnecessarily zero things in some spots. Perhaps better described as int >>= 8; it crops up in the eeprom programming code :) here's a tip along the same lines: if you've got an int, but it's not going to be >255, then it's best to just assign it to a...

I didn't bother modifying any of the generated code.. just some refactoring of the C was enough to start seeing savings. I'm going to just probably profile the compiler output and see what sort of constructs it is absolutely horrid at and see if there are any common patterns that produce...

while waiting for mods to approve my first posts, I did a bit of hand-optimizing of one if() statement and managed to save 110 bytes! this if going to be fun!

Hi folks.. I just signed up to participate in this thread. I'm a homebrewer from Ottawa by night, and an embedded software guy by day. Looking forward to toying around with this code and looking for ways to optimize and improve for starters (sdcc is apparently a very sloppy compiler). For...