Connecting a TM1637 4-Digit Display

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anovik
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Re: Connecting a TM1637 4-Digit Display

#91 Post by anovik » 16 Jan 2018, 10:23

Hello.
I want to thank the developer for his work!
I wanted to find out if there was some way to switch the plugin's operating mode ("clock" or "manually") by commands from the rules or by a http request, rather than on the device page in ESPEasy?
If not, is it possible to implement?

Domosapiens
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Re: Connecting a TM1637 4-Digit Display

#92 Post by Domosapiens » 19 Jan 2018, 23:59

@Papperone,

thanks for this plug-in.
Is it possible to combine this plug-in with a PCF8574 I/O expander ?
A quick test of the mega release ESPEasy_mega-20180119 showed only the regular GPIO's and not the PCFGPIO's from PCF8574.
Thanks for your response.
Domosapiens
30+ ESP units for production and test. Ranging from control of heating equipment, flow sensing, floor temp sensing, energy calculation, floor thermostat, water usage, to an interactive "fun box" for my grandson. Mainly Wemos D1.

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Re: Connecting a TM1637 4-Digit Display

#93 Post by papperone » 20 Jan 2018, 10:12

Domosapiens wrote: 19 Jan 2018, 23:59 @Papperone,

thanks for this plug-in.
Is it possible to combine this plug-in with a PCF8574 I/O expander ?
A quick test of the mega release ESPEasy_mega-20180119 showed only the regular GPIO's and not the PCFGPIO's from PCF8574.
Thanks for your response.
Domosapiens
Hi, I am waiting some new displays models in order to implent them in the next release of this plugin.
I think I shoudl have somewhere such expander PCF8574; if I will find it I will have a look if it can be easily implemented your request :)
My TINDIE Store where you can find all ESP8266 boards I manufacture --> https://www.tindie.com/stores/GiovanniCas/
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Re: Connecting a TM1637 4-Digit Display

#94 Post by grovkillen » 20 Jan 2018, 11:21

I can send you 1 or 3 if you don't have some at home.
ESP Easy Flasher [flash tool and wifi setup at flash time]
ESP Easy Webdumper [easy screendumping of your units]
ESP Easy Netscan [find units]
Official shop: https://firstbyte.shop/
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Re: Connecting a TM1637 4-Digit Display

#95 Post by Domosapiens » 20 Jan 2018, 12:22

@Papperone,
hope you can do it.
It would be a major break-trough: using PCFGPIO's as generic GPIO's.
(f.i. also for HC-SR04 distance measurement, IR Transmit etc.)
Thanks in advance !
30+ ESP units for production and test. Ranging from control of heating equipment, flow sensing, floor temp sensing, energy calculation, floor thermostat, water usage, to an interactive "fun box" for my grandson. Mainly Wemos D1.

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Re: Connecting a TM1637 4-Digit Display

#96 Post by Shardan » 20 Jan 2018, 14:00

grovkillen wrote: 20 Jan 2018, 11:21 I can send you 1 or 3 if you don't have some at home.
Same, have several PCF8574 DIP-housing in the shelf.
Let me know.
Regards
Shardan

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Re: Connecting a TM1637 4-Digit Display

#97 Post by papperone » 20 Jan 2018, 14:18

Don't worry I've just found PCF8574 so I can start experimenting with that!
I already opened a generic Issue/Enhancement request on github as I do believe we shoudl add expanders in the ESPEasy core code, this will allow *any* plugin to access both internal or external GPIOs seamlessly https://github.com/letscontrolit/ESPEasy/issues/749

BTW: There are many expanders similar to PCF8574, even with 16 GPIOs (MCP23017) so will be tricky to implement them all, so let's park it here and think about it...
My TINDIE Store where you can find all ESP8266 boards I manufacture --> https://www.tindie.com/stores/GiovanniCas/
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38domo
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Re: Connecting a TM1637 4-Digit Display

#98 Post by 38domo » 28 Jan 2018, 17:20

hello, I have seen this plugin, thanks a lot for his developpement. I am interested in, found the source and would like to implement on an ESP-01.
However I don't succeed to compile, many errors found ( using ESPeasy R120 due to memory limitations).
Is it possible to have it working on this ESPeasy release ???
regards

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Re: Connecting a TM1637 4-Digit Display

#99 Post by 38domo » 30 Jan 2018, 07:59

hello,
Nobody to respond ?
I precise the compilation error is with the function AddFormNote in PLUGIN_WEBFORM_LOAD.

_P073_7DGT:90: error: 'addFormNote' was not declared in this scope

addFormNote(string, F("TM1637: 1st=CLK-Pin, 2nd=DIO-Pin"));

I am using Arduino 1.8.5 and ESPcore 2.30
regards

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Re: Connecting a TM1637 4-Digit Display

#100 Post by TD-er » 30 Jan 2018, 10:31

I would suggest switching over to one of the newer branches (v2.0 or Mega), since all active development is done there.
What are the memory restrictions you have?

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Re: Connecting a TM1637 4-Digit Display

#101 Post by 38domo » 30 Jan 2018, 20:23

ESP-01 has only 512k memory, so we cannot install v2.00 or mega version

sentinel
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Re: Connecting a TM1637 4-Digit Display

#102 Post by sentinel » 11 Feb 2018, 10:28

Hi papperone,

I have posted a problem I have with SendToHTTP in this thread. I am informing you as well, in case it relates to your build.

Thanks!

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Re: Connecting a TM1637 4-Digit Display

#103 Post by Shardan » 11 Feb 2018, 13:32

38domo wrote: 30 Jan 2018, 20:23 ESP-01 has only 512k memory, so we cannot install v2.00 or mega version
Nope.
The old version (Usually on a blue PCB) has 512K
Newer versions (Black PCB) have 1MB and can be used with the 1024-Binaries of ESPEasy 2.0.0/Mega.

Please beware:
At this time there are some ESP-01 with a PUYA flash chip.
These flash chips do not work with ESPEasy atm, they have a problem with SPIFFS memory.
This problem is under investigation, but that will take a while.
Regards
Shardan

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Re: Connecting a TM1637 4-Digit Display

#104 Post by TD-er » 11 Feb 2018, 13:59

Shardan wrote: 11 Feb 2018, 13:32 [..]
Please beware:
At this time there are some ESP-01 with a PUYA flash chip.
These flash chips do not work with ESPEasy atm, they have a problem with SPIFFS memory.
This problem is under investigation, but that will take a while.
There is solution, but we still have to implement it.

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Re: Connecting a TM1637 4-Digit Display

#105 Post by Shardan » 11 Feb 2018, 15:38

TD-er wrote: 11 Feb 2018, 13:59
Shardan wrote: 11 Feb 2018, 13:32 [..]
Please beware:
At this time there are some ESP-01 with a PUYA flash chip.
These flash chips do not work with ESPEasy atm, they have a problem with SPIFFS memory.
This problem is under investigation, but that will take a while.
There is solution, but we still have to implement it.
Nice! Good job.
But still no solution that is ready to use :)
Regards
Shardan

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Re: Connecting a TM1637 4-Digit Display

#106 Post by papperone » 12 Feb 2018, 07:22

I received finally the new 7digit modules with M1637 and new config (6 digits and with decimal dots).
I will try to find some spare time to update the plugin to have support for them, about the SendtoHTTP bug I don't this can be connected but I'll have a look.
Last edited by papperone on 12 Feb 2018, 08:43, edited 1 time in total.
My TINDIE Store where you can find all ESP8266 boards I manufacture --> https://www.tindie.com/stores/GiovanniCas/
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Re: Connecting a TM1637 4-Digit Display

#107 Post by grovkillen » 12 Feb 2018, 08:32

papperone wrote: 12 Feb 2018, 07:22 I received fiannly the new 7digit modules with M1637 and new config (6 digits and with decimal dots).
I will try to find some spare time to update the plugin to have support for them, about the SendtoHTTP bug I don't this can be connected but I'll have a look.
Great news Papper! Just a reminder, I got them displays myself in case you need me to test something :)
ESP Easy Flasher [flash tool and wifi setup at flash time]
ESP Easy Webdumper [easy screendumping of your units]
ESP Easy Netscan [find units]
Official shop: https://firstbyte.shop/
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Re: Connecting a TM1637 4-Digit Display

#108 Post by papperone » 13 Feb 2018, 18:38

Either I'm not lucky at all (and I got 4 DOA brand new displays from Robodin) or something is weird here...
None of the brand new 4 displays I've got, despite I bought branded ones, seems to work :(

@Grovkillen: can you connect one of the new type of displays you got as well and see if they react with old plugin? they are pin to pin compatible so at least the digits shoudl be shown...
My TINDIE Store where you can find all ESP8266 boards I manufacture --> https://www.tindie.com/stores/GiovanniCas/
My Wiki Project page with self-made PCB/devices --> https://www.letscontrolit.com/wiki/inde ... :Papperone

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Re: Connecting a TM1637 4-Digit Display

#109 Post by grovkillen » 13 Feb 2018, 22:09

papperone wrote: 13 Feb 2018, 18:38 Either I'm not lucky at all (and I got 4 DOA brand new displays from Robodin) or something is weird here...
None of the brand new 4 displays I've got, despite I bought branded ones, seems to work :(

@Grovkillen: can you connect one of the new type of displays you got as well and see if they react with old plugin? they are pin to pin compatible so at least the digits shoudl be shown...
Will try it tomorrow.
ESP Easy Flasher [flash tool and wifi setup at flash time]
ESP Easy Webdumper [easy screendumping of your units]
ESP Easy Netscan [find units]
Official shop: https://firstbyte.shop/
Sponsor ESP Easy, we need you :idea: :idea: :idea:

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Re: Connecting a TM1637 4-Digit Display

#110 Post by papperone » 14 Feb 2018, 10:40

Meanwhile I've found last night a differen library for Arduino (not working on ESP8266) which can drive both old and new type of displays...
That's weird as they both uses TM1637 and I build the plugin from scratch using the info taken from the IC datasheet, but... obviously I overlook something or the new display have something different which I cannot still spot.
Anyhow I think it will take longer than expected as I will need to reverse engineer the new lib I've found to understand how it is driving the IC and to implement the same changes in my plugin (which does not uses any library).
I do apologize for the delay :(
My TINDIE Store where you can find all ESP8266 boards I manufacture --> https://www.tindie.com/stores/GiovanniCas/
My Wiki Project page with self-made PCB/devices --> https://www.letscontrolit.com/wiki/inde ... :Papperone

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Re: Connecting a TM1637 4-Digit Display

#111 Post by grovkillen » 14 Feb 2018, 13:20

papperone wrote: 14 Feb 2018, 10:40 Meanwhile I've found last night a differen library for Arduino (not working on ESP8266) which can drive both old and new type of displays...
That's weird as they both uses TM1637 and I build the plugin from scratch using the info taken from the IC datasheet, but... obviously I overlook something or the new display have something different which I cannot still spot.
Anyhow I think it will take longer than expected as I will need to reverse engineer the new lib I've found to understand how it is driving the IC and to implement the same changes in my plugin (which does not uses any library).
I do apologize for the delay :(
As you probably already knew, I cannot get mine to shine neither.
ESP Easy Flasher [flash tool and wifi setup at flash time]
ESP Easy Webdumper [easy screendumping of your units]
ESP Easy Netscan [find units]
Official shop: https://firstbyte.shop/
Sponsor ESP Easy, we need you :idea: :idea: :idea:

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Re: Connecting a TM1637 4-Digit Display

#112 Post by The-Holgi » 14 Feb 2018, 21:54

papperone wrote: 14 Oct 2017, 00:31
grovkillen wrote: 13 Oct 2017, 23:52 Will dot matrix displays powered by MAX7216 be supported? Just curious.
it's in my "to-do" list but probably as a separate plugin as this matrix led can be more flexible and customizable ;)
Hallo,
is this still on your to-do list?
I think it‘s a good idea. The Dot Matrix looks very good.
With best regards Holgi

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Re: Connecting a TM1637 4-Digit Display

#113 Post by papperone » 15 Feb 2018, 07:19

The-Holgi wrote: 14 Feb 2018, 21:54
papperone wrote: 14 Oct 2017, 00:31
grovkillen wrote: 13 Oct 2017, 23:52 Will dot matrix displays powered by MAX7216 be supported? Just curious.
it's in my "to-do" list but probably as a separate plugin as this matrix led can be more flexible and customizable ;)
Hallo,
is this still on your to-do list?
I think it‘s a good idea. The Dot Matrix looks very good.
With best regards Holgi
Yes it is! Right now I need to rework the TM1637 interface to enable compatibility with newer modules, then I'll work on implementing dot matrix displays!
My TINDIE Store where you can find all ESP8266 boards I manufacture --> https://www.tindie.com/stores/GiovanniCas/
My Wiki Project page with self-made PCB/devices --> https://www.letscontrolit.com/wiki/inde ... :Papperone

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Re: Connecting a TM1637 4-Digit Display

#114 Post by The-Holgi » 15 Feb 2018, 10:30

Thanks.

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Re: Connecting a TM1637 4-Digit Display

#115 Post by 38domo » 17 Feb 2018, 16:19

hello,
on my side I have made supplemental tests. I have 2 displays available
First test: connect on arduino Uno with a small prog to display random data --> OK on the 2 displays
2nd test : connect on Wemos with espeasy v2 : No. don't work- no display
3d test : connect on ESP12E with espeasy V2: NO- don't work- no display
espeasy works fine on wemos and esp12 with gpio tests ( leds connected)
As there is a level potential issue on the displays (5V on arduino, 3V3 on ESP) I have ordered level shifters to check.
regards

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Re: Connecting a TM1637 4-Digit Display

#116 Post by papperone » 17 Feb 2018, 17:15

38domo wrote: 17 Feb 2018, 16:19 hello,
on my side I have made supplemental tests. I have 2 displays available
First test: connect on arduino Uno with a small prog to display random data --> OK on the 2 displays
2nd test : connect on Wemos with espeasy v2 : No. don't work- no display
3d test : connect on ESP12E with espeasy V2: NO- don't work- no display
espeasy works fine on wemos and esp12 with gpio tests ( leds connected)
As there is a level potential issue on the displays (5V on arduino, 3V3 on ESP) I have ordered level shifters to check.
regards
Yes I have all new modules that does not work with my plugin while the modules I've boughy few months ago works perfectly.
Nevrtheless on a bare ESP8266 with the original library I've the same behaviour while using a different library I'm able to drive both old and new type displays.
Something must have changed in the TM1637 IC as there's no other explanation nor components on the module to explain such behaviour; I'm currently working to understadn the difference between old and new library to fix the plugin...
My TINDIE Store where you can find all ESP8266 boards I manufacture --> https://www.tindie.com/stores/GiovanniCas/
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Re: Connecting a TM1637 4-Digit Display

#117 Post by victorclaessen » 17 Feb 2018, 20:25

I just wanted to add that I bought several of these units and unfortunately they also don't work with this plugin. There is no output visible. They work from Arduino or from Raspberry Pi. Weird, right?

https://nl.aliexpress.com/item/4-Digit- ... 69551.html

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Re: Connecting a TM1637 4-Digit Display

#118 Post by soif » 03 Mar 2018, 08:27

I have made a PR here:
https://github.com/letscontrolit/ESPEasy/pull/996

This PR fixes the No Display (+ also hangs, crash, etc...) issue for a recent (RobotDyn in my case) 4seg display, using a NodeMcu v2.
You can test it by compiling my branch fixTM1637

Please reports IN THE PULL REQUEST ONLY :
- does it STILL work on older displays (that used to work with the previous code) or not?
- is it stable (no over Load usage, or hangs) or not?
- is it working with your recent displays?

if it doesnt work on your diplay , you can experiment with a bigger TM1637_BIT_DELAY, ie 100, and report

If it is reported to work on both old and new displays, maintainers will certainly merge it fast. :mrgreen:
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Re: Connecting a TM1637 4-Digit Display

#119 Post by victorclaessen » 03 Mar 2018, 21:43

Thanks for the proposed fix. Would it be alright to trouble you for the compiled firmware; i.e. would you be willing to post that somewhere? Preferably for a 4M-version ESP8266?

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Re: Connecting a TM1637 4-Digit Display

#120 Post by TD-er » 03 Mar 2018, 23:37

victorclaessen wrote: 03 Mar 2018, 21:43 Thanks for the proposed fix. Would it be alright to trouble you for the compiled firmware; i.e. would you be willing to post that somewhere? Preferably for a 4M-version ESP8266?
It is already merged and there should be a new build tomorrow morning.

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Re: Connecting a TM1637 4-Digit Display

#121 Post by victorclaessen » 04 Mar 2018, 14:24

Ah, right. I can confirm that my TM1637 units (the ones obtained here: https://nl.aliexpress.com/item/4-Digit- ... 69551.html) work. Thanks for fixing this!

By the way, when I send "7dn,8.5", the display reads "8", where I would expect it to read "8.5". And when I send "7dt,8.5" it reads "8:5°", where I would expect "8.5°". Is my expectation wrong, or could this be an issue related to this specific module? Any thoughts?

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Re: Connecting a TM1637 4-Digit Display

#122 Post by papperone » 04 Mar 2018, 20:32

Thanks for the quick PR but I had already fixed the timing issue; I am still working to handle better this new display which has both "dots" and "colon" (that's causing the strange behaviour of last post from victorclaessen).
As soon as it's completed (including the handling of the 6-digits TM1637) I'll make the PR in order to have it tested...
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Re: Connecting a TM1637 4-Digit Display

#123 Post by soif » 04 Mar 2018, 21:56

thanks for your GREAT work ! I'm sure that you will clear this better for all of us ASAP ! cheers 8-)

BTW my display has NO colon, but just dots (x4)
Last edited by soif on 05 Mar 2018, 06:42, edited 1 time in total.
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Re: Connecting a TM1637 4-Digit Display

#124 Post by papperone » 04 Mar 2018, 22:09

yes, I know, so far i've got 4 different displays (I've received all of them so I can test all before to release next version).
1) 4 digits and only colon
2) 4 digits and only dots
3) 4 digits with both colon and dots
4) 6 digits with dots
My TINDIE Store where you can find all ESP8266 boards I manufacture --> https://www.tindie.com/stores/GiovanniCas/
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Re: Connecting a TM1637 4-Digit Display

#125 Post by soif » 04 Mar 2018, 22:13

BTW can someone owning one of the "OLD" displays can CONFIRM
that it still works with my latest (merged) PR ? 8-)
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Re: Connecting a TM1637 4-Digit Display

#126 Post by papperone » 05 Mar 2018, 07:10

soif wrote: 04 Mar 2018, 22:13 BTW can someone owning one of the "OLD" displays can CONFIRM
that it still works with my latest (merged) PR ? 8-)
if you only changed the timing I can confirm it works, as I own as well some old displays and even increasing the delay they keep working...
My TINDIE Store where you can find all ESP8266 boards I manufacture --> https://www.tindie.com/stores/GiovanniCas/
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Re: Connecting a TM1637 4-Digit Display

#127 Post by papperone » 06 Mar 2018, 01:20

papperone wrote: 04 Mar 2018, 22:09 yes, I know, so far i've got 4 different displays (I've received all of them so I can test all before to release next version).
1) 4 digits and only colon
2) 4 digits and only dots
3) 4 digits with both colon and dots
4) 6 digits with dots
Unfortunately after some struggling and reverse engineer of module (3) I've found out that despite the display has both "colon" in the middle and "dots" after each digit the "dots" are not connected to the TM1647... :(
Long story short, module (1) and (3) behave exactly the same, so I removed module (3) from the drop down, already implemented module (2) and tested.
As it's late and I've lost my focus on coding I'll finish implementing module (4) tomorrow then will make the PR (after verifying that MAX7219 still works and I've not broken anything!)
My TINDIE Store where you can find all ESP8266 boards I manufacture --> https://www.tindie.com/stores/GiovanniCas/
My Wiki Project page with self-made PCB/devices --> https://www.letscontrolit.com/wiki/inde ... :Papperone

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Re: Connecting a TM1637 4-Digit Display

#128 Post by papperone » 10 Mar 2018, 14:40

I tried to commit the new version of the pluing into the 2.0 branch but for some reasons GitHub desktop still keep adding it to the HLW8012 PR which is pending since month waiting for a solution.
Despite in GitHub I created a new PR when I try to merge it GitHUB (on the web) keeps adding anythign to the previously opened one.
If someone can explain how I can make GitHUB desktop understand I really want a new commit separated from the pending one(s) it woudl be very apreciated!!!
My TINDIE Store where you can find all ESP8266 boards I manufacture --> https://www.tindie.com/stores/GiovanniCas/
My Wiki Project page with self-made PCB/devices --> https://www.letscontrolit.com/wiki/inde ... :Papperone

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Re: Connecting a TM1637 4-Digit Display

#129 Post by TD-er » 10 Mar 2018, 18:41

papperone wrote: 10 Mar 2018, 14:40 I tried to commit the new version of the pluing into the 2.0 branch but for some reasons GitHub desktop still keep adding it to the HLW8012 PR which is pending since month waiting for a solution.
Despite in GitHub I created a new PR when I try to merge it GitHUB (on the web) keeps adding anythign to the previously opened one.
If someone can explain how I can make GitHUB desktop understand I really want a new commit separated from the pending one(s) it woudl be very apreciated!!!
I split both PRs.
Can you have a look at this one to check I took the correct version?
https://github.com/letscontrolit/ESPEasy/pull/1043
Then I will merge it.

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Re: Connecting a TM1637 4-Digit Display

#130 Post by papperone » 11 Mar 2018, 00:00

TD-er wrote: 10 Mar 2018, 18:41 I split both PRs.
Can you have a look at this one to check I took the correct version?
https://github.com/letscontrolit/ESPEasy/pull/1043
Then I will merge it.
Thanks TD-er, really apreciated the help and sorry for the mess!

@everyone: new P073 is on GitHub, supporting below modules; please test all modules you have and report to me eventually any bugs found.

MAX7219 8digit
Image

TM1637 4digit (colon)
Image

TM1637 4digit (dots)
Image

TM1637 6digit
Image

**NOTE** if your TM1637 4-digit module has both colon and dots most probably only colon is connected thus it will work same as the one described as "TM1637 4digit (colon)"
Please forgive me the bad code but those modules are really weird, most of them the digit addresses are in the right subsequencial order (e.g. 1234 or 12345678) but the ones 6-digits I've got have all swapped order "321654" :shock:
My TINDIE Store where you can find all ESP8266 boards I manufacture --> https://www.tindie.com/stores/GiovanniCas/
My Wiki Project page with self-made PCB/devices --> https://www.letscontrolit.com/wiki/inde ... :Papperone

38domo
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Re: Connecting a TM1637 4-Digit Display

#131 Post by 38domo » 12 Mar 2018, 19:18

hello, I have tested this week end : wemos D1 with display 4 digit with colon & dots.
It's works fine . thanks a lot for the development.
I can manage the brigthness using the web interface but how can we manage the brightness by command (http/mqtt or Rules)?
gerard

papperone
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Posts: 497
Joined: 04 Oct 2016, 23:16

Re: Connecting a TM1637 4-Digit Display

#132 Post by papperone » 12 Mar 2018, 20:54

38domo wrote: 12 Mar 2018, 19:18 hello, I have tested this week end : wemos D1 with display 4 digit with colon & dots.
It's works fine . thanks a lot for the development.
I can manage the brigthness using the web interface but how can we manage the brightness by command (http/mqtt or Rules)?
gerard
Wiki si your friend --> https://www.letscontrolit.com/wiki/inde ... nt_display
My TINDIE Store where you can find all ESP8266 boards I manufacture --> https://www.tindie.com/stores/GiovanniCas/
My Wiki Project page with self-made PCB/devices --> https://www.letscontrolit.com/wiki/inde ... :Papperone

38domo
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Posts: 12
Joined: 18 Feb 2017, 11:43

Re: Connecting a TM1637 4-Digit Display

#133 Post by 38domo » 13 Mar 2018, 19:08

hello,
Thanks a lot.
I have tested from http:
http://ip_esp/control?cmd=7don
http://ip_esp/control?cmd=7doff
http://ip_esp/control?cmd=7db,x
works fine.
I will try with mqtt this evening

38domo
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Posts: 12
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Re: Connecting a TM1637 4-Digit Display

#134 Post by 38domo » 14 Mar 2018, 19:29

hello,
to use with mqtt:
send to your mqtt broker
msg.topic = "sysname/cmd"
msg.payload = "7db,15"
it works fine

papperone
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Joined: 04 Oct 2016, 23:16

Re: Connecting a TM1637 4-Digit Display

#135 Post by papperone » 16 Mar 2018, 07:33

thanks a lot 38domo, can you please post a picture of your display to confim which one you tested?
Or maybe refer to the pictures I've postes fwe message before...
My TINDIE Store where you can find all ESP8266 boards I manufacture --> https://www.tindie.com/stores/GiovanniCas/
My Wiki Project page with self-made PCB/devices --> https://www.letscontrolit.com/wiki/inde ... :Papperone

38domo
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Posts: 12
Joined: 18 Feb 2017, 11:43

Re: Connecting a TM1637 4-Digit Display

#136 Post by 38domo » 16 Mar 2018, 18:45

hello,
it is the display with dots & semi colon
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warcz
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Re: Connecting a TM1637 4-Digit Display

#137 Post by warcz » 22 May 2018, 18:07

Is it possible to use multiple LED displays at once ESP ?

only one works :o(
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boolie
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Re: Connecting a TM1637 4-Digit Display

#138 Post by boolie » 23 May 2018, 21:45

Hi, Papperone,

I'd like to create a bit more flexibility in what the plugin can display on the 7-segment modules, to allow for some alpha characters (I want to be able to indicate an error condition and loss of wifi, that sort of thing... Err, dISc, Off, ...)

I was thinking of copying the plugin and making the changes in the playground, but then I found this thread and I see that you've had to do some "interesting" stuff to make the code work with the different versions of the TM1637, so I thought maybe it would be better to suggest the changes to you and see if you have the time to make them, rather than for me to break something!

What I'm thinking, is:
- 7db,n,n,n,n for binary data - each 'n' would be a decimal value 0-255 representing the binary bits sent for that digit of the display; this allows us to switch on any combination of segments;
- 7ds,"ABCD" for string data (e.g. hexadecimal or text)... the characters AbcdeFhIJLoPStuy should all be possible to create with 7 segments.

What do you think, is that something you could do, or is it better if I learn how to modify the plugin and try my skills?

Thanks!

Jeff
Various D1 & Sonoffs with ESPEasy, some Tasmota. Domoticz, Z-wave.
ESPEasy Patreon - keep up the good stuff, guys!

papperone
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Re: Connecting a TM1637 4-Digit Display

#139 Post by papperone » 23 May 2018, 23:59

1) yes currently only one display is allowed, still need to spend some time to implement multiple displays...
2) definitely yes, it was somethign planned to add alphabetical chars but still not done; I'll fin dsome free time to implement this new features and will take your suggestion but I'm puzzled what is the application for the "binary" feature you asked, can you please elaborate more?
My TINDIE Store where you can find all ESP8266 boards I manufacture --> https://www.tindie.com/stores/GiovanniCas/
My Wiki Project page with self-made PCB/devices --> https://www.letscontrolit.com/wiki/inde ... :Papperone

warcz
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Posts: 2
Joined: 22 May 2018, 18:01

Re: Connecting a TM1637 4-Digit Display

#140 Post by warcz » 24 May 2018, 11:46

I should have asked before I bought 4 pcs :o( Thank you for your info. Good luck with upgrading

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