Error in code for roller blind

ESPHome
1

this is the project i am trying to build: Printables
i got everything wired up fine.
on the coding side, when i try to use his codes and i got errors all over the place config tung.txt - Google Drive
any idea what his testblind.yaml is or what’s in it?

2

I have updated the original as it was out of date. You will still have to make modifications for your stepper motor.

The main changes are

From:

esphome:
  name: $devicename
  platform: ESP8266
  board: d1_mini
  esp8266_restore_from_flash: True
  on_boot:

to

esp8266:
  board: d1_mini
  restore_from_flash: True
esphome:
  name: $devicename
  on_boot:

You’re also missing the encryption key, don’t forget to set it up in secrets.yaml; unless you just put your encryption key instead of !secret enc_key

api:
  encryption:
    key: !secret enc_key

and I don’t think you can use stepper as a stepper ID, change it back to mystepper

OK, try that then :slight_smile:

3

@tung256 You are using an ESP32, try this instead

esp32:
  board: nodemcu-32s
esphome:
  name: roller-right
  on_boot:

The rest of the above reply still applies.

5

thank you for updating your code to work with the uln2003 driver. i compiled and no errors came up!

this is my file updated to work with the ESP32 and TMC2208 driver, i get a bunch of errors as seen here

image
image1834×709 28.8 KB

6

Change id: my_stepper to id: $mystepper

stepper:
  - platform: a4988
    id: $mystepper

See how that goes.

The information is in the error text.

7

thanks! error went away.
it refuses to connect to my wifi network, even though i disabled my 5ghz band. will try again tomorrow…

8

im happy to say it finally works!
used this whole code of yours as seen here. compiled to get the bin file. next, i flashed the board using this link i used the ESPHome flasher at Web - ESPHome
i dont know why my easyFlasher exe program does not work after days of troubleshooting.

one of the thing i noticed is that my Nema 17 is extremely slow. this is the value from the guy using the nema 17 motor

image
image773×80 4.68 KB

is there anyway to boost up the speed? if i use your code, would it boost the speed? im not sure if your code is compat with this nema 17.
image

the only reason i am using nema 17 is because the motor in your code is not powerful enough to lift my big heavy roller shade.

9

Yes :slight_smile: It’s the variable/substitute for max_speed:

See Docs

10

ok. thanks for confirming.

1 of the thing i noticed now is that if i unplug power, and plug back in, the memory is gone. meaning i have to run set up again. is there anyway to make it remember the position?
today, the shade was opened. i unplugged. plugged back in power. when i hit the close button, it closed but the motor would not stop when it reached the closed position.

11

all issues resolved thanks to @RoadkillUK !!!
i made this video so others know how to make one themselves a lot easier DIY your own automatic roller shade for big, or small windows - YouTube hope that helps.

1 Like
12

looks like i need more torque for an even bigger roller shade.
can i use the same code of the nema 17 for the bigger Nema 23 motor? if not, which part of the esphome yml code must i change?

13

Yes, I can’t see why the same code wouldn’t work, it’s just a larger motor.

1 Like