Recent content by lbenson

Alternatively, you can buy DC water heater elements. I don't know how they would handle varying DC voltages, but it's possible that the most simple solar charge controller with a suitably low constant voltage emulating a battery charge level (say 24V) could work. Your high of 130V DC could be a...

Hippy--many thanks for all your contributions--concise code, insight and analysis about problems, and especially your effect on building the community here. It's a community where if I post that I'm stuck on something before going to bed in North America, there's a good chance that by the time I...

Oops--was thinking of millisecond timer, as with some other micros. Change to 2 after the setting to 0 would work.

M2 code: if pButton = 1 then: time=0: do while pButton=1 and time < 2000: loop: endif Any other code you want might be in the loop.

Truly impressive, with many elegant cases. I never get around to that part. Keep on keeping on. I'm 77, and need continuing inspiration from the older generation.:giggle:

I am sure there are differences by server, but I have found that for my pan and tilt rivercam, the servos hold if you give them 2 pulses (but not with just one). Live minutes ago: I'm happy to be in Florida, 1,440 miles away as the crow flies (if the crow could fly that far over water most of...

Nice job. Re photos, if uploaded to the forum, 1) they won't go away if an outside site disappears or changes or subscription expires, and 2) you get a good preview in your post.

Right--welcome.

Thanks. I should have specified what I would like to be able to power: an ESP32 S2Mini, which would be powered off most of the time, but would be brought back up to send a temperature change detected by the 08M2 (or other signal, such as motion-detected or additional temperature sensors). If I...

This is clever, and I have an immediate use. Can you provide code (are pokes required?) and suggest a suitable n-ch mosfet (preferably one which would work at 3V3)?

Note that if your code has indentation to help make its structure easier to follow (which arguably every program should have--especially one which reaches the length yours has), you can preserve it in the forum by enclosing it in the forum tags "[ code]" and "[ /code]" (without the spaces...

Note that DEBUG is notorious for causing unexpected problems with timings. I personally never use it--always use SERTXD to get just the information needed.

How many LEDs do you want? 29 12V outputs, 256 timed events: 20M2, MCP23017, ULN2803 Or the 45 LED version (without the ULN2803s):

Gramps--note that if you enclose your code in the tags, "[ code]" and "[ /code]" (with no spaces), any formatting (indenting) you had will be preserved. (And note that indenting is good to help readers understand your code--and also to help you understand it if you look at it at a later time.)