@Motorhomer I’m none pert but I think replacing the resistor will work. You’ll just need to adjust the values, either manually or by following the calibration calculations in the INA219 library.
You’ll be limited to 75/350= about 20% of the resolution, but depending on your use case that might not be a problem. If it is, maybe you can get a 5x smaller resistor?
@Heizen said in Outdoor rust prevention:
I think cleaning yellowed plastic solar lights is an important part as outdoor .rust prevention of its maintenance and because I want my own set of lights to last a long time, I make sure to keep up with its cleaning to avoid excessive oxygenation once more.
What do you clean them with, and how often?
Around 10 or 11 months ago I did an experiment whereby I coated solar cells with about a half dozen or so different clear coatings from different manufacturers. All of them claimed to be uv resistant and to offer uv protection. All of them were exposed the same this past summer to the harsh Texas sun, and all of the epoxy coating on all of the solar cells were burned to a crisp except for two different cells that I had coated with one particular product: SprayMax 2K epoxy clear coat. Those two cells still look as good as the day I coated them.
I'll continue the experiment with those two cells going forward, to see how many summers it lasts.
Something I haven't yet tried is a uv film, and I'll be setting up some test cells to see how they fair with that next summer.
Another thing I haven't yet tried is a headlight protective clear coat that I've seen some youtubers (like this one, by another Texan, at time index 3:52) claim you only need to wipe on once a year. Hopefully he's not a shill, but since I don't know him personally, who knows? I replace the batteries on solar garden lights once a year, so a once-a-year re-wipe wouldn't be horrible, since I'd have it in front of me anyway for the battery change.
Anyone here tried that or similar? Although not cheap, my guess is that it probably covers a lot of surface, and you can do it incrementally, unlike the 2K epoxy coating, where, once started, you have at best about 24 hours to apply it before the pot life expires, at which point the can of coating material becomes useless even if you've used only part of it. In its favor, though, the 2K epoxy appears to be a once-and-done process--not requiring on-going maintenance--so for now I still like it best.
The new solar cells I'll be testing on are these:
which look like they may be the same as the ones on the solar garden lights that I tested this last summer. Currently, during the 11/11 sale, you get 10 of them for $7.27 and free shipping. I may use them to replace the burned-to-a-crisp solar cells from this past summer.
I may have found a solution to my problem, I have to test a few days to be sure.
Hard my domoticz installation I have two raspberry one in server the second in client.
The raspberry server is connected to the USB gateway and on the second I have configured the ethernet gateway.
I keep you informed if I still have crashes.
I have MySensors node with 5 moisture sensors - work without problems for one year.
Arduino Pro Mini 5 V
RFM69HCW powered by 3,3V voltage regulator + resistors on communication lines
5x FDRobot moisture sensors
3x DS18B20 temperature sensors
powered by 5V, 1A power supply