Let's Control It

Hairyloon

ThomasB wrote: ↑27 Aug 2019, 17:04So try the latest Mega build.

Could I trouble you for a link to that please?

Hairyloon

I hope this isn't a breach of forum etiquette, but since I'm still on with the PCF8591, I thought it better to change the title and carry on here rather than start a new thread, even though it is a completely different issue. I've got a PCF8591 set up measuring some voltages from sensors, which I wo...

Hairyloon

Ok, now that that's sorted, what shall I do with these RTC chips?

Hairyloon

Hairyloon

TD-er wrote: ↑16 Jul 2019, 14:25 Tools => Advanced => check NTP

That's all (don't forget to save)

Thank you, that was almost too easy... except it's on GMT when I'm on BST...

Hairyloon

I'm wanting my ESP to know the time. I've got an I2C clock chip, which is one option, but it occurs to me that if it's connected to a network, then it should be able to simply ask a time server.
Is that possible, and if so how?

Hairyloon

Ah yes.
I've not found the box with the module yet, so not looked at the interface for it. Sorry, I'll let you know in due course. It may be a while: it's dropped off my priority list.
Thank you for the help.

Hairyloon

I have an ESP-01 set up with ESPEasy. I switch it on, log in, no problem. After some time, I am no longer able to find it on the network.
Sleep is set to 0 (disabled).
If I reset, then it comes back online.
What is likely to be the problem?

Hairyloon

ThomasB wrote: ↑15 Jul 2019, 02:50
But I want to read the value, not the state...
OK, a comparator won't work. Wire up a ADC and put it to work.

Which brings us back to the original question of how to tell the chip to measure the comparative voltage...
Is there the means to send a specific command to a given I2C device?

Hairyloon

I'm not seeing the sense in using an ADC when the info about your project points to using a common comparator chip. For example, I would grab an LM393 (or any other single supply comparator) and configure ESPEasy with the Switch Input plugin to read the state. But I want to read the value, not the ...

Hairyloon

ThomasB wrote: ↑14 Jul 2019, 18:50I would encourage you to try that chip (using single ended mode) with the rule based comparison method mentioned earlier.

Why single ended?
I'm not seeing the sense to that when the differential measurement seems to be exactly the tool for the job. Perhaps I've not understood what you mean...

Hairyloon

Keep in mind that this is not the same as comparator solution, just differentially driven ADC operation. Ah, am I using the wrong terminology? OK, so what's the difference? And how do I get ESPEasy to use the differential input? If microvolt threshold accuracy is needed then a dedicated comparator ...

Hairyloon

I'm not sure how big a deal that will be. Getting familiar with the PlatformIO IDE will probably be the hardest part. Yeah, I tried that once and gave up on it. I may look for another way... You mentioned that you want to use the PCF8591 as a comparator. This can be done in ESPEasy's rules. Read th...

Hairyloon

The plugin only provides simple analog reads of the four inputs. No other functions are supported. That may be true, but in order to read the simple analogue input, the plugin must send a control byte to the chip: I just need to send a different control byte. I may have to hack the plugin to do tha...

Hairyloon

How can I use a PCF8591 as a comparator with ESP Easy?
I understand that I would need to set the control byte to the appropriate value, but I don't know how to do that.

Hairyloon

grovkillen wrote: ↑12 Jul 2019, 21:16 This site is not going away. Just that we need a good landing page explaining our OS for newcomers.

Ok fair point. Has nobody here volunteered for that job?
Do you know what you want from it?

Hairyloon

grovkillen wrote: ↑08 Sep 2018, 15:45 That's also a possibility but let's leave that until we have a proper site.

What is improper about this site?
I hope you're not going to go the way of so many and go for a flashy website that puts form over function.

Hairyloon

Thanks, I'll look at that.

Hairyloon

I fear that I have missed something obvious, but how can I get the ESP modules to talk to each other?

Hairyloon

G'day.

Hairyloon

grovkillen wrote: ↑01 Jul 2019, 15:58 Yeah we're working on that.

And how is that going?

Hairyloon

grovkillen wrote: ↑01 Jul 2019, 07:12 Sounds like it yes, executable? Hard to say.

I would say that it's eminently executable, if we can assemble the right team...

Hairyloon

I need to get my daytime job to switch to ESP Easy ;) It seems to me that that ought to be a very doable thing. This project is a good enough idea that it ought to be able to generate enough money to pay some staff. I would not like to suggest how best to do it, but I do suggest that we start a con...

Hairyloon

There is a circuit here for using an arduino to measure AC voltage, you could follow that principle perhaps? I'm not sure that you would need the transformer: you could just rectify the AC and use a voltage divider, but that instinctively feels dangerous... I expect somebody who knows what they are ...

Hairyloon

Did anyone get anywhere with the APDS-9930 sensor?

Hairyloon

LisaM wrote: ↑24 Aug 2017, 14:02It's always easy to ask others to do your work...

Hey, some of us just aren't that clever.

Hairyloon

I'm also wondering if the defective module can still be used if the application is not critical and does not involve I2C. Sure, nothing wrong with that. But the modules are very low cost, so it is an easy decision to toss them in the junk bin. Yeah, but I am a crazy person and I hate to throw anyth...

Hairyloon

I've had 2-3 broken units out of the 200+ I've flashed. So I'd say it's broken and trash it. Not worth the time to fault search. Fair point, but at the moment I'm running at about 50% so I'd like to get some idea of what's going wrong, and I'm also wondering if the defective module can still be use...

Hairyloon

Possibly, but the puzzle there is of why does an identical module in the same circuit behave differently?

Hairyloon

I was trying to attach a real time clock to an ESP-01: a DS1307 which is an I2C device. I did an I2C scan on the ESP Easy interface, and get something at 0x8, with every other address giving an "Unknown error". I checked the wiring and scanned again and got nothing, but errors... After a f...

Hairyloon

The ESP-Easy interface has support for the analogue inputs on the PCF8591, but the chip also has a D-A output: how is this best controlled?

Hairyloon

Sorry, I'd made a silly mistake on the flashing circuit.

I have another module which I suspect is totally dead: lights up blue and doesn't respond to anything: not even reset. That one is scrap?

Hairyloon

grovkillen wrote: ↑28 May 2019, 10:40I will update the docs a soon as I can.

In which case, should we try to compile a list of errata, so you can do it all at once? I don't like to do it spontaneously: it feels like I'm having a go...

Hairyloon

Good answer, but I think no. It says P25080H, which I believe is 1MB.

Let me just try something else...

Hairyloon

TD-er wrote: ↑28 May 2019, 10:36 Well, Grovkillen is mainly involved in the documentation part

Can I leave it with you to pass on, or should I go find him?

Hairyloon

Hmm, apparently I have not yet added a link to the page I made in the documentation about it. See this page: https://espeasy.readthedocs.io/en/latest/Reference/GPIO.html#best-pins-to-use-on-esp8266 Good stuff, thank you. Moving on, I imagine this is a breach of forum etiquette, but since you are in...

Hairyloon

Thank you. I have read that that is often good advice. Alas not this time, I get the same error.

Hairyloon

Trying to flash an ESP-01 with the ESP Easy flasher, it reports errors: [27/05/2019 22:18:51] wrote 992, requested 1040 [27/05/2019 22:18:51] error: failed sending 1040 bytes Repeated many times over. Have tried a few times, and dropped the baud rate to 9600, but get the same. Is it just a duff modu...

Hairyloon

ThomasB wrote: ↑27 May 2019, 05:19viewtopic.php?f=4&t=6663

Thanks. A link to a thread which suggests to google for an answer...
But I did find this:

Hairyloon

Variously around the ESP Easy interface, I see warning triangles, but I've not found any guide to what any of them mean.
Thus far, I have not yet noticed any adverse effects from ignoring them, but I assume they are there for a reason...

Hairyloon

Thanks. I'll take a look at that.

Hairyloon

Hi, I'm sorry, but I expect this is a question with an RTFB answer, but I've had a pig of a time just trying to get the damn module to work at all (dodgy adaptor), and I'm having a pig of a job on another project so I thought I'd just come here and look stupid with a stupid question and hope that no...

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