M5 Core2 and unit UHF-RFID are bugged in UIFlow (bytes index out of range)

[tinkerer]

The default testing code does not work, something seem to be wrong in "units/_uhf_rfid.py"

Changing the region does not help.
Removing the region just moves the error tot the automatiq freq hopping step.

Can someone help me figure out how I can find and edit the units/_uhf_rfid.py on the Core2?

Thanks in advance

[kylebuttress]

@tinkerer

I'm using the same Unit with M5Paper and its working very well. I did get a similar error when I was first starting my project.

I did eventually get it working with the following set up.

uhf_rfid_0.set_region(uhf_rfid_0.REGIN_US)
uhf_rfid_0.automatic_freq_hopping(0xFF)
uhf_rfid_0.set_channel_freq(924.25)
epc_bool = 0
uhf_rfid_0.set_select_mode(0x01)

and then start waiting for tags with
def reader():
temp = None
count = None
clean = None
while True:
count += 1

    # while not temp:
    temp = uhf_rfid_0.single_polling()

    if temp:
        # label10.setText(str(temp))
        print("-----")
        print(temp[0])
        print(temp[1])
        print("-----")

this is on a separate thread and works quite well for my requirements.

The other issue I had and not sure if it was because I did not read correctly however. it works with the following tags (UHF RFID Tag ISO18000-6C)

Not sure if it helps, but I hope it offers some info thats of use.

reagrds

Kyle

[Bat21]

Hello everyone,
I have the same problem, I have Core2 and Aton Lite and it doesn't work on any.
The labels are not, since I have the SDK for JRD 4035 and I see them all. The EPC comes out complete with all its characters.

With IIFLOW I have only managed to read from the EPC 6 characters.
In Arduino I have not been able to make the EPC read.

I have worn € 300 and it is very disappointing.

Sorry for my bad English

Cheers

[tinkerer]

@kylebuttress Would you be willing to share the full code, I applied the initialization, but I remain having the same error.

[kylebuttress]

@tinkerer I'll extract out what I do for the reading and send it though I will test on my core unit as well

I'm off line tomorrow so give me a day to get back to you ok.

[kylebuttress]

@tinkerer

I made a quick reader nothing special and this is on a Basic Core unit
quick video showing it working
https://youtu.be/qvtr6Vy-HwY

The Tags I use are these ones

make sure the port is correct otherwise the bytes out of range error pops up

from m5stack import *
from m5ui import *
from uiflow import *
import unit


setScreenColor(0x222222)
uhf_rfid_0 = unit.get(unit.UHF_RFID, unit.PORTA)

uhf_rfid_0.set_region(uhf_rfid_0.REGIN_US)
uhf_rfid_0.automatic_freq_hopping(0xFF)
uhf_rfid_0.set_channel_freq(924.25)
epc_bool = 0
uhf_rfid_0.set_select_mode(0x01)




label0 = M5TextBox(128, 59, "Tag #", lcd.FONT_Default, 0xFFFFFF, rotate=0)
label1 = M5TextBox(22, 106, "waiting ... ", lcd.FONT_Default, 0xFFFFFF, rotate=0)


while True:
        # while not temp:
        temp = uhf_rfid_0.single_polling()

        if temp:
            # label10.setText(str(temp))
            print("-----")
            print(temp[0])
            print(temp[1])
            print("-----")
            label1.setText(temp[0])
        wait(.5)