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+--- Thread: qr code generator (/showthread.php?tid=2401)
qr code generator - Auzzii - 27.12.2019
Hello,
Can someone help me integrate QR generator in SCADA
I receive ASCII string code from RS485 to address 5/1/1
I need to display QRcode image in SCADA
http://davidshimjs.github.io/qrcodejs/
Tnx.
RE: qr code generator - Joep - 28.12.2019
It's easier to use an API. I just tested with the script below and it works. Check the website for the API options. Source: http://goqr.me/api/
Add the script below to your controller and fill the data with your ASCII string.
Next step is to add an image object to your visualization with the remote url: /scada/resources/img/qr-code.png and a refresh interval of 10 seconds for example.
Now each time you run the script an png image with the qr code will be added to the folder /scada/resources/img and dueto the refresh it will be visible within 10 seconds.
SCRIPT:
--Source: http://goqr.me/api/
require('ssl.https')
data = 'https://knxgroothandel.nl' --QR code data
qr = ssl.https.request('https://api.qrserver.com/v1/create-qr-code/?size=250x250&data=' .. data)
io.writefile("/www/scada/resources/img/qr-code.png", qr)
RE: qr code generator - admin - 28.12.2019
Constantly writing data to SD card is bad for it's longevity. Pure client side solution is better but more complicated to implement.
RE: qr code generator - Erwin van der Zwart - 28.12.2019
Hi,
Extract this to user folder inside the "apps" ftp location:
qr.zip (Size: 10.14 KB / Downloads: 17)Add a frame to your visu with this URL: /user/qr/qr.lp
When the object 5/1/1 has no value a QR to the host location is generated.
BR,
Erwin
RE: qr code generator - Auzzii - 30.12.2019
Hi,
Everything works except Right-click to save
Tnx
RE: qr code generator - Erwin van der Zwart - 30.12.2019
Hi,
That must have something to do with your client as it works perfect in my controller..
BR,
Erwin
RE: qr code generator - Auzzii - 30.12.2019
In /scada-vis on iphone/android i can't
RE: qr code generator - Erwin van der Zwart - 30.12.2019
Hi,
It also works on iOS, i don't have Android to test..
Add to Photo's -> in Dutch "Voeg toe aan Foto's"
BR,
Erwin