Recent content by etk29321

I have gotten several direct responses from them recently as I’ve been building my system so they’re still active. That said their absence here after being so active in previous years is worrying. basing my build on the esp32 though gives me a bunch of options to use the hardware with other...

Yep, passing through a Global element does work to trick it into respecting precision! That seems like a lot to go through to format a string but now that I'm actually using the scripting language I'm noticing how peculiar it is at times. Thanks for the note on names... I can see that being...

No luck. It's the same results. You can see in the Variables tab that the Value type is formatted correctly, but once cast to a string all the sudden the full precision of the RTD probe is back. I don't see anything in the guide that actually covers how type casting works in the brucontrol...

Im finally up to coding my brucontrol rig and I have an issue with the display command that is stumping me. I cannot figure out how to write an element value to a string with a defined precision. I've tried storing the value in a Value variable and setting precision there, but that precision...

Well on further examination I may have misdiagnosed my issue. I am still having issues but I can reliably recreate them with a straight digital out (no dual throw, no one-shot) on serial. In this configuration on any pin -- and only in this configuration, Brucontrol complains about a checksum...

Following up on a discussion a few pages back on which ESP32 pins can be used to drive SSRs (and some other learnings on ESP32 with Brucontrol). Confirmed that I can use any pin that supports digital out as either a straight digital out or duty cycle. I am wiring 2 SSRs to pins 32&33 without...

Yep. Reading the wiring map in more detail I notice a note that PWM is fixed at 1000Hz. That's way too fast for a SSR. You could drive a SSR with PWM at say 1Hz, but since Brucontrol has fixed the frequency to 1000Hz, PWM is off the table. I believe though the way to interpret this is you...

Yep. Reading the wiring map in more detail I notice a note that PWM is fixed at 1000Hz. That's way too fast for a SSR. You could drive a SSR with PWM at say 1Hz, but since Brucontrol has fixed the frequency to 1000Hz, PWM is off the table. I believe though the way to interpret this is you...

I have no idea where that requirement about pwm capable pins on esp32 comes from. The esp32 is a nice platform because of how flexible it is with configuring the pins as digital, analog, or pwm and in other projects I’ve done I’ve never seen such a limitation. I am about to wire up several...

I’m using a few HX711s with a esp32 and have never had any issues with them interfacing. My issues are all aligned with drift over time. I’m using them to measure kettle volume, which works fine but after an hour or so I find my tare reading has drifted by enough to make me annoyed. I also...

I did my glycol fern controller by starting with the tiltpi node red flows and adding to them. I already had some 1wire gpio/SSRs and temp sensors and discovered you can interface 1wire with the rpi gpio pins just with the help of a few resistors. I use node red dashboard on a touchscreen...

I used to have a ‘high efficiency’ room ac unit that showed similar behavior. It had a digital control board that seemed to artificially limit how long the compressor was allowed to stay on — to the point it couldn’t cool a room effectively. Fixing it required bypassing the control board and...

Same. I’ve only ever used water in blow off jars. Never had and issue. The bugs we care about cannot climb up the blowoff tube.

That looks like a roll on epoxy finish? Like garage floor coating? That’s not a bad idea. I’d go with that. I was referring to the bar top poured epoxy mentioned earlier in the thread where you could spend $100’s to put a crystal clear coat on plywood. That would be a waste in my mind.

I’d just fill with wood filler, sand, and paint it once and be done with it. Pine plywood is just not worth the trouble and expensive of an epoxy coat. You’ll never sand that kind of plywood smooth enough for a really finished look - but you can get it looking prettier and the paint will help...