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Industrial HVAC VAV control
My google foo must be off today, or maybe it just I'm a bit under the wx, as I'm not coming up with the info or a hackaday demo for this.   I'm looking for info on how to...
Fri. May 25, 2018 - 06:08 PM
GPS based clock missed seconds
Not sure the best forum to post this, but since it is an Arduino sketch I'll try it here.   Background:  I've always wanted to build one of those self setting clocks and...
Tue. Mar 27, 2018 - 07:12 PM
I2C pcb layout?
I have a question on I2C trace layout, I know it is considered a bus, and one would run the SDA/SCK lines from one device to the next. I'm laying out a pcb and have four devices,...
Fri. Jan 19, 2018 - 03:32 PM
Put a workbench in your pocket
Perhaps this should be in market place, but wanted to share.   https://www.kickstarter.com/projects/pokitmeter/a-multimeter-oscilloscope-and-logger-that-fits-in   Happy...
Thu. Dec 21, 2017 - 02:11 PM
Xtal load caps
I'm working on a project that has a xtal in a similar configuration to the ones on an AVR, with  load caps on either side.   The DS for the xtal states Load Capacitance...
Fri. Aug 4, 2017 - 08:44 PM
15v switch mode regulator
I need to come up with a 24v in - 15v out 1 amp or less switching regulator for a project I'm working on.   10k+ units needed so cost is important, looking for min of...
Mon. May 15, 2017 - 06:00 PM
ExpressPCB gives away project box
Ok, I hope this does not sound like a promotion, but here goes, I just received a project box from ExpressPCB that is designed to fit their mimi-board pcb's. The "box" comes in...
Wed. Aug 10, 2016 - 01:14 PM
looking for moving average code
Hi freaks,   I have searched for some code posted here for a moving average that used a single float and an int new sample returning an updated float value, instead of...
Wed. Dec 30, 2015 - 06:02 PM
State Machine Tutorial
The link in this tutorial is broken, does anyone have a copy of the tutorial or a link that works please? https://www.avrfreaks.net/forum/t...   Jim
Mon. Oct 12, 2015 - 07:58 PM
Win7 Pro + AS4.18sp3 + Dragon error
The HD on my WinXP machine died, so replaced the HD and loaded Win7 Pro (64bit) and after restoring all the files I had backed up I'm trying to load a test program via my dragon...
Sun. Aug 23, 2015 - 02:36 AM
Tiny25 cpu speed?
This is an odd problem, so I'm looking for suggestions on where to look.   I have been building 12v battery monitors for several months, each unit is programmed the same...
Tue. Jan 13, 2015 - 01:57 PM
Low Loss PWRgate
For freaks who are also Hams (amateur radio ops) The Low Loss PWRgate is a modern backup power system, it will allow your communications equipment to remain operative on battery...
Wed. Nov 26, 2014 - 07:49 PM