Hello

I looking for the best unit options to do the following tasks.

1. control or activate a solenoid (Relay Unit I think)
2. read from a 9 pin serial port (RS485 to TTL)

if there are any other or better options I would like to hear them

thanks

I have been able to get it working with the correct wiring using the grove port in a Core Basic Gray unit.

No I will start to use the io pins in the bottom of the unit so I can use the grove port for other things.

thanks for all your assistance.

@ajb2k3 When the servo is attached and then plugged in, it does not start. When the servo is removed and then plugged in it starts..

@teastain Thanks for the info. I hope you got something out of this adventure :). The StickC does not have a battery. I'll try with the Core Grey I have, it has a battery and see I can get it to work with the pins and not the Grove.

It does seem odd though.

thanks again

cheers Kyle

@teastain Thanks, I tried what you mentioned and same shut down...

curious

Hi,

I'm trying to connect a Servo Kit 180 to a M5StickC. However when I try the Stick shuts down when I connect the red pin.
See images below.
Do I need a separate connector or are the pins mixed up.

Best method for sending large sets of data back to api as a file.

I have tried urequests and the post does not like the keyword files.

does anyone have a method they would like to share.

thanks

Kyle

@Bat21

Not sure if this will help.

I made a quick reader based on a [project I'm working on this also works on m5Paper as well it's nothing complex simple read and display, this is on a Basic Core unit
A 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
I hope it helps

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)

@jptalledo

I have noticed it drains the battery of the M5Paper quite quickly. I have not tested that specifically as it was not a requirement for my project. The range is quite good at 50-70 cm.

I think there is a way to change the power and read strength, though I have not investigated too deeply. I am using other methods to alter read time. When I get to a stable point I will refine some more.

@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)