I would typically think of a boost regulator in the case when I’d like to step-up voltage, and such were my intentions when I introduced the LTC3525 boost regulator chip on the Funky sensor. The idea was to be able to power the Funky from a single AA/AAA batery, and the LTC3525 would simply provide steady…
Earlier this year I purchased a 220l non-pressurized evacuated tube solar heater and installed it myself on my rooftop. It is a relatively cheap (~440 Euro) solution for domestic hot water. I chose the non-pressurized type because of its simplicity and relative safety in case of overheating. Also, it does not require additional pumps, cold…
Apart from the pathetic etching job on the PCB I described yesterday, I found out this morning that I also managed to etch the kitchen sink and made wife unhappy. It have been warned not to pour ferric tri-chloride in it, but few drops seem to have found their way. I drilled the holes today…
When I was building my house, I had to figure what to use for heating/cooling plus a hot domestic water solution. I came to think that the best for my case is to use a heat pump. The advantages are obvious – a heat pump moves heat/cold using somewhere up to ¼ of the electricity…
One of the things that has been quite annoying about my Daikin heat pump converted to air-water system, is the defrosting algorithm, or is it better to say the lack of defrost algorithm. Basically below 5 degrees Celsius it defrosts every 45 minutes of accumulated compressor run time on my system, not considering if it…