Recent content by sash

the finish product looks like this

here a basic image of what it looks like and how things  hook up,  I connected  the digital pots to Rj45 ports  then use regular solid wire cat5e cable and higher to control the pots, each port handles 2 pots with 2 spare wires for future use.. it  work fine over 50 feet of  cat5 cable as that...

true there added heating costs in the wintertime, but the same can be said about switching from incadesent to CFL or leds....or swapping out your old energy ineffecient fridge..  all equalls added heating costs in the winter time   but really are you heating 6 months out of the year ??  unless...

curious -- why worry and just use an instant water heater, on normal usage there generally +25% savings, which will compensate for any  tier energy usage  program. I have used one for over 12 years now with out problems. and it works as well as it did  the day I bought it.. and with a normal...

other then  the  lack of mercury and the faster start time then a CFL  . energy consumption is the same in  LED ..   as they are  both 60 lm/w   metal halides or high or low pressure bulbs are much better at  90 - 150 lm/watt. if you are looking purely at energy efficiency. even if the colour is...

your welcome and my pleasure...    but i see i forgot to mention, you place the the PWM on the dc side of the  GTI either at  the solar panels or right before the inverters .  this one can control  up to 6 pwm  or  6 1000w GTI  ... if you pair in parallel or series   a PWM  2 or 3 PWM to one...

Hi there,   if anynone wants to build a GTI LIMITER or need to shift   load around - - the  accuracy with 1000 watt inverter should be   about =/-4 watt  as itt is 256 steps .  use it to shift load around  say when one GTI inverter  is  over producing it shifts load to another  GTI   as for most...

sorry  here one more post I updated the code for better error correction,  it first checks if the fist byte matches your MTU, then it checks if  the number of bytes is correct ( 10), as the MTU throws out erroneous errors now and then   #include <stdio.h> #include <Wire.h> #include...

here where I attached the next wire  on the opposite side of the board to where  Data RX is,        good luck   have fun :)

 -- but here  a couple of pictures where to add wire. i going to add an  Optocoupler  to it so it less likely to damage the arduino at some point from a power spike  and vise versa

not sure if it posting as I try a a capta pops up and nothing happens so hopefully I do not post this multiple times   Hi bob I tried what you suggested but it did not work same bad data. but  double works fine, even though it rounded abit to two decimal place   here a cleaned up code for anyone...

if you want a basic copy of the arduino code here it is it is a bit messy as it was my debuging code, i accidentally forgot to save the  one with the LCD attached i have to rewrite it again tomorrow. // adapted from Serial Input Basics // char data type replaced by byte const byte numBytes =...

thank you BobS327  I will give your suggestion a try.   but I got it to work by changing byte to double for voltage and power making them 16 bit   here and image of the of the arduino operating off the  TED MTU      

here an image of my hack connected to an arduino, if you are curious ..

hi there does anyone know what might be wrong with this arduino code by some chance  I hacked the MTU of the ted 1001  and connected it directly to an arduino   but  something goes  wrong in the the math format   here is a debug  perl  test file with a know data -   #!/usr/bin/perl -w -s {...