• Please visit and share your knowledge at our sister communities:
  • If you have not, please join our official Homebrewing Facebook Group!

    Homebrewing Facebook Group

iSpindle Concentrators, Repeaters, Bridges, Hubs

Homebrew Talk

Help Support Homebrew Talk:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Webserver working but still only white LCD screen.

Log below ...

2021-05-02T14:42:22Z,iSpindel032,62.3900,17.99,4.14,1.0420,900.0,-57.0,,

Avant delay
V: Serving /config/.
N: [WiFi-event] event: 7
V: Sending /iSpindInfo/.
Après delay
Début du Loop
On a ouvert le Dir
File Name :
iSpindel032.csv
File Size :
821

2021-05-02T14:42:22Z,iSpindel032,62.3900,17.99,4.14,1.0420,900.0,-57.0,,


2021-05-02T14:42:22Z,iSpindel032,62.3900,17.99,4.14,1.0420,900.0,-57.0,,

Avant delay
V: Serving 404.
V: Sending /uptime/.
V: Sending /heap/.
V: Sending /resetreason/.
V: Sending /iSpindInfo/.
Après delay
Début du Loop
On a ouvert le Dir
File Name :
iSpindel032.csv
File Size :
821

2021-05-02T14:42:22Z,iSpindel032,62.3900,17.99,4.14,1.0420,900.0,-57.0,,


2021-05-02T14:42:22Z,iSpindel032,62.3900,17.99,4.14,1.0420,900.0,-57.0,,

Avant delay
N: [WiFi-event] event: 7
Après delay
Début du Loop
On a ouvert le Dir
File Name :
iSpindel032.csv
File Size :
821

2021-05-02T14:42:22Z,iSpindel032,62.3900,17.99,4.14,1.0420,900.0,-57.0,,


2021-05-02T14:42:22Z,iSpindel032,62.3900,17.99,4.14,1.0420,900.0,-57.0,,

Avant delay
Après delay
Début du Loop
On a ouvert le Dir
File Name :
iSpindel032.csv
File Size :
821

2021-05-02T14:42:22Z,iSpindel032,62.3900,17.99,4.14,1.0420,900.0,-57.0,,


2021-05-02T14:42:22Z,iSpindel032,62.3900,17.99,4.14,1.0420,900.0,-57.0,,

Avant delay
 
Can you try and connect with cables and not directly as a shield ?
D4 on shield to D8 on Wemos
3V on shield to 3.3V on Wemos
D5 to D5
D7 (the one between D6 and D8 flagged D4) to D7 on Wemos
D3 to D3 on Wemos
RST to D2 on Wemos
G to G on Wemos
 
Brilliant,is now working when connected as you say above.
Green tab image shows text overlapping each other (font too big) and white border is off the screen at the top of LCD.
Red tab image works perfectly though when wired as above.
Thank you for your help !

I use brewpiless to control my fermentation chamber,can I use URL target (put brewpiless IP address here) to push ispindel readings to brewpiless ?
Will it work like that ?
 
Last edited:
I use brewpiless to control my fermentation chamber,can I use URL target (put brewpiless IP address here) to push ispindel readings to brewpiless ?
Will it work like that ?

Not sure if you saw the edit to my post above.
 
@DaveS
Did you get your ispindel pointing / working with brewpiless?
I've got my ispindel reporting to brewpiless and also forwarding onto brewspy, didn't need any extra code.
 
tbh I havent really looked at it again since zeslammy offered to add brewpiless as a target and have been out of town for work.
Did you get it working using the URL target option ?
Thanks for the heads up
 
@DuncB
I want ispindel readings to be displayed on the ispindhub LCD as well as in brewpiless web interface.
Is easy to look at the LCD when walking past my fermentation chamber to see all is OK.
It seems to me the method above will only send to the brewpiless ?
 
Ahh, my brewpiless is set up as a station and access point but using the repetidor software so it displays the ispindel details on the screen but you also can see the usual web brewpiless and then I can read the gravity temp and battery on brewspy as well.

Trouble is you can only point one ispindel at the brewpiless and use that as a relay for one ispindel.

The Slammy gives readout of several ispindels but has to go through that first. Can you look at connecting one ispindel into your network and then to the brewpiless and then from there to your Slammy? Might be worth asking on the brewpiless thread.
 
@ZeSlammy Very interested in your project and I have been struggling to get the iSpindHub to work but now am stuck!

I have a generic 1.44" TFT that says the driver is ST7735 and have mapped the wiring as below
TFT DI Mini
1 GND G
2 VCC 3.3V
3 SCL D5 SCLK
4 SDA D7 MOSI Data
5 RES D2 Reset
6 DC D3 Data Command
7 CS D8 Chip Select
8 BL D4 Backlight

I flashed the D1 Mini using Brewflasher the 1.4 green v0 rev0 alpha version and managed to configure, I think, the hub IP. I found the web page for iSpindHub but could not work out how to connect my iSpindel or what settings my iSpindel should have.
Then when I connected the TFT screen it went blank and I lost connection to the web page.

Your help appreciated

Cheers
Peter
 

Attachments

  • IMG_0696.JPG
    IMG_0696.JPG
    971.1 KB
  • IMG_0697.JPG
    IMG_0697.JPG
    878.9 KB
6 DC D3 Data Command
DC is RS and should be connected to D1.
Can you try it out ?

I flashed the D1 Mini using Brewflasher the 1.4 green v0 rev0 alpha version and managed to configure, I think, the hub IP. I found the web page for iSpindHub but could not work out how to connect my iSpindel or what settings my iSpindel should have.
Then when I connected the TFT screen it went blank and I lost connection to the web page.

I need to update the DOC section on the github. I'll do that today.
But normally, you should see a Wifi network called iSpindHub from the iSpindle.
Then go for the "HTTP" service configuration using 192.168.4.1/ispindel (I'll do screen grabs)
 
Can you try and load a RED TAB version ?
Cause all I see as differences are the col_start and row_start so nothing to do with which pins are used or not.
Code:
    -DTFT_MOSI=PIN_D7
    -DTFT_SCLK=PIN_D5
    -DTFT_CS=PIN_D8
    -DTFT_DC=PIN_D3
    -DTFT_RST=PIN_D2
    -DTFT_BL=PIN_D4
    -DTFT_BACKLIGHT_ON=HIGH
    -DTFT_RGB_ORDER=TFT_BGR
 
I have tried the red tab version it made no difference The pins in the Platform IO on Github were the same for Red and Green. I have double and triple checked the interconnections and they match your screen shots. I also tried a different D1 Mini - no difference. I re-soldered the header on the TFT just in case there was a dry joint - no difference
For clarity this is what I have done - without the TFT screen connected
1 Flashed with the Red Tab version
2 I think I configured iSpinHub to my wifi network - whether that was totally correct or not is debatable
3 But I was able to find the IP address on the network and bring up the web page however I was not sure it was functioning properly

Then I plugged in the TFT its screen was lit white, the DI Mini blue light was permanently lit and I was no longer able to access the web interface.

Thoughts on what to try next?

Thanks
 
Yes otherwise it doesn't flash
That in itself is super strange :( I'm guessing when you plug it, it shorts the D1, hence the disapearrance of the Web page
I think we first need to find how to plug your screen and make it work with a simple program.
Do you have an exact reference ? Was there any documentation ?
 
Yes I agree the TFT may be faulty
I bought the 1.44 TFT from eBay in AU the descriptions are attached.
Thanks for your help
 

Attachments

  • Pins 2021-09-28_16-51-03.png
    Pins 2021-09-28_16-51-03.png
    51.5 KB
  • 1.44 2021-09-28_16-50-38.png
    1.44 2021-09-28_16-50-38.png
    46.5 KB
So I was sipping my pint and I had this thought when looking at the pins diagram... and disconnected the backlight D4 - et voila
Now I could do with some info how to properly configure the iSpindel

Cheers time for another beer
 

Attachments

  • IMG_0698.JPG
    IMG_0698.JPG
    1.1 MB
- Get on the iSpindel Configuration Page
- You should see an iSpindHub Network
- Tell the iSpindel to connect to it
- Use the HTTP protocol
- Point to 192.168.4.1/ispindel

Should work
 
For others playing along at home
No password
Port 80
/ispindel in the path
Success
Although for my iSpindel name the font is a bit large

Next challenge to get rid of the default ISpindel32?and how to forward to Brewfather.
 

Attachments

  • IMG_0699.JPG
    IMG_0699.JPG
    1 MB
Also, I have noticed in the web browser that the time zone would seem to be set to French time rather than Australian time.
 
Back
Top