press and hold red button then slide it out

@mnhj have you tried something simple first to start with it ?

@nalom1 this 5v and ground there is to supply sensors/units but voltage levels for gpio are 3.3

@hanktttop said in Cardputer COM Not Working:

@ajb2k3 Yes, I tested the first time this was suggested. In fact, the first cable I was using was just for charging a portable gaming console. Then I tried a few more, inclund cables for smartphones, external drives, etc. And I tested then on their specific devices, everything normal.

No idea why the cheapest one worked on cardputer, though.

I'm glad you have it working now...mark this cable up as Cardputer saver cable

yes Uiflow 2.0 web needs Uiflow 2.0 firmware inside controller.

@markram14

@Cognitive5525 said in AIN4-20mA Unit to Arduino Nano Every:

@spectrad have you tried with the M5Stack example here?

he doesn't have M5Stack controller, only M5Stack sensor trying to read back to Arduino NANO so not esp32 board.

@frankqc said in How to use M5Unit-PoESP32 ?:

M5Unit-PoESP32

do you have any other controller to work with it?
The way I see it is that ie you have let say M5Core with some I2C units (sensors) connected to it
then add your M5Unit-PoESP32 connected to M5Core too over UART port (blue) to give whole setup access to local network and power ...

docs examples etc

@hanktttop said in Cardputer COM Not Working:

New cable, same error. In fact, I just tested it on Fedora 39 (fresh installed), I still haven't been able to put the device in download mode. Maybe I'm forgetting a drive, which makes the device "recognize" the computer as a charger. Still, I reinstalled them all again, with no result.

I have M5Dial with StampS3 at the back...had to remove sticker to see and feel when "boot" button is pressed and hold before usb is plugged in - its almost hard to sense way different from pressing reset button where you can hear click.
With my Dial when say com13 was unresponsive then going in to boot mode made com12 to be available so in short words diff com for programming and different for boot mode - thats my experience with StampS3 from my M5Dial - i had it few times in some unresponsive mode.

usually when you press "burn" in M5Burner there is red button "erase" thats even without M5 module being detected, before com port selection

cable is well hidden in Tab5 box, good to know you found it

did you looked here by chance?

M5 watering unit

@Jomac said in Cardputer Driver Issues:

@robski said in Cardputer Driver Issues:

do you use m5burner?
if so what com port it shows there when you connect cardputer?
also what com port it is showing when cardputers on/off switch is in off and then you press and hold BOOT btn and then connect usb?

It depends on how it feels, sometimes it will connect on Com 4 and other times on Com 9???

thing is that comport you see with just connecting cardputer to usb is one of two available

second comport (needed for programming) is visible when on dead device you press and hold boot button G0 and then connect to usb

do you use m5burner?
if so what com port it shows there when you connect cardputer?
also what com port it is showing when cardputers on/off switch is in off and then you press and hold BOOT btn and then connect usb?

for start: what hardware do you have for this task, are you able to update firmware via M5Burner to your controller?

its easier from inside - just undo nut - than using screwdriver in "bolt" flat slot from outside

press and hold red button then slide it out

just connect voltage to sensor and measure what voltage it is giving out between output pin and ground. for 0 kPa your raw Analog value should be around 1300 i think

with your raw value as 3287
sensor range -100 to 200
analog range 0 to 4095

your calculated pressure should be around 140