dimitrisl
February 4, 2024, 11:52am
1
Hello. I need some help. I am trying to control a thermostat knob with esphome stepper motor. Everything works fine but I can’t save the steps value on flash memory of esp32 (in order to survive power loss). I have read posts that mention how to save to flash with global variables but whatever I tried didn’t work. If anyone has any suggestions it would really help. This is my esp code:
esphome:
name: thermostat
platform: ESP32
board: nodemcu-32s
on_boot:
- priority: -200
then:
- stepper.report_position: # Set stepper to global variable
id: thermostat
position: !lambda return id(thermostat_global);
- stepper.set_target: # Set stepper to global variable
id: thermostat
target: !lambda return id(thermostat_global);
globals:
- id: thermostat_global # Integer for storing the stepper position in case of reboot
type: int
restore_value: True
#Enable logging
logger:
level: debug
stepper:
- platform: uln2003
id: thermostat
pin_a: GPIO19
pin_b: GPIO18
pin_c: GPIO5
pin_d: GPIO17
max_speed: 250 steps/s
step_mode: FULL_STEP
sleep_when_done: YES
acceleration: inf
deceleration: inf
api:
services:
- service: control_stepper
variables:
target: int
then:
- stepper.set_target:
id: thermostat
target: !lambda 'return target;'
- globals.set: # Set global to current position
id: thermostat_global
value: !lambda return id(thermostat).current_position;
number:
- platform: template
name: "Thermostat stepper"
optimistic: true
min_value: 0
max_value: 3000
step: 1
on_value:
then:
- stepper.set_target:
id: thermostat
target: !lambda "return x;"
alv2005
November 22, 2024, 7:35am
3
An example that works here:
# default HA integration, OTA updater and backup http web portal
ota:
- platform: esphome
# safe_mode: true
# password: !secret ota_password
#########################
web_server:
port: 80
version: 3
js_url: https://oi.esphome.io/v3/www.js
wifi:
domain: .lan
# use_address: oel-fuellstand-sensor
networks:
- ssid: !secret wifi_ssid1
password: !secret wifi_password1
- ssid: !secret wifi_ssid
password: !secret wifi_password
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: "${name}_Hotspot"
password: ""
captive_portal:
# Enable logging
logger:
level: debug
esphome:
name: thermostat
platform: ESP32
board: esp32dev
on_boot:
priority: -200
then:
- logger.log:
format: "Restoring thermostat_global: %f"
args: [ 'id(thermostat_global)' ]
- globals.set:
id: thermostat_global
value: !lambda return id(thermostat_global);
- stepper.report_position:
id: thermostat
position: !lambda return id(thermostat_global);
- stepper.set_target:
id: thermostat
target: !lambda return id(thermostat_global);
globals:
- id: thermostat_global
type: float
restore_value: true
stepper:
- platform: uln2003
id: thermostat
pin_a: GPIO19
pin_b: GPIO18
pin_c: GPIO5
pin_d: GPIO17
max_speed: 250 steps/s
step_mode: FULL_STEP
sleep_when_done: YES
acceleration: inf
deceleration: inf
api:
encryption:
key: DHrH6oy4444444Wzk0jnPsk9qLM6oOHzc1vdOaLcgsQo=
services:
- service: control_stepper
variables:
target: float
then:
- stepper.set_target:
id: thermostat
target: !lambda 'return target;'
- globals.set: # Set global to current position
id: thermostat_global
value: !lambda return id(thermostat).current_position;
number:
- platform: template
name: "Thermostat stepper"
optimistic: true
min_value: 0
max_value: 3000
step: 1
restore_value: true
on_value:
then:
- stepper.set_target:
id: thermostat
target: !lambda "return x;"
- globals.set:
id: thermostat_global
value: !lambda "return x;"
- logger.log:
format: "Saved thermostat_global: %f"
args: [ 'x' ]
Here is a log of how the app works:
Compressed 8192 bytes to 47...
Wrote 8192 bytes (47 compressed) at 0x0000e000 in 0.1 seconds (effective 536.1 kbit/s)...
Hash of data verified.
Leaving...
Hard resetting via RTS pin...
INFO Successfully uploaded program.
INFO Starting log output from COM3 with baud rate 115200
[08:52:29][I][logger:156]: Log initialized
[08:52:29][C][safe_mode:079]: There have been 0 suspected unsuccessful boot attempts
[08:52:29][D][esp32.preferences:114]: Saving 1 preferences to flash...
[08:52:29][D][esp32.preferences:143]: Saving 1 preferences to flash: 0 cached, 1 written, 0 failed
[08:52:29][I][app:029]: Running through setup()...
[08:52:29][D][number:012]: 'Thermostat stepper': Sending state 2750.000000
[08:52:29][D][main:103]: Saved thermostat_global: 2750.000000
[08:52:29][C][wifi:048]: Setting up WiFi...
[08:52:29][C][wifi:061]: Starting WiFi...
[08:52:29][C][wifi:062]: Local MAC: 30:AE:A4:
[08:52:29][D][wifi:482]: Starting scan...
[08:52:29][W][component:157]: Component wifi set Warning flag: scanning for networks
[08:52:35][D][wifi:497]: Found networks:
[08:52:35][I][wifi:541]: - 'wifiK' (BC:EA:FA:) ▂▄▆█
[08:52:35][D][wifi:542]: Channel: 6
[08:52:35][D][wifi:543]: RSSI: -78 dB
[08:52:35][I][wifi:541]: - 'wifiK' (D0:D3:E0:) ▂▄▆█
[08:52:35][D][wifi:542]: Channel: 1
[08:52:35][D][wifi:543]: RSSI: -90 dB
[08:52:35][D][wifi:546]: - '' (D0:D3:) ▂▄▆█
[08:52:35][I][wifi:313]: WiFi Connecting to 'wifiK'...
[08:52:36][I][wifi:617]: WiFi Connected!
[08:52:36][C][wifi:428]: Local MAC: 30:AE:A4:
[08:52:36][C][wifi:433]: SSID: 'wifiK'
[08:52:36][C][wifi:436]: IP Address: 10.1.1.65
[08:52:36][C][wifi:440]: BSSID: BC:EA:FA:
[08:52:36][C][wifi:441]: Hostname: 'thermostat'
[08:52:36][C][wifi:443]: Signal strength: -78 dB ▂▄▆█
[08:52:36][C][wifi:447]: Channel: 6
[08:52:36][C][wifi:448]: Subnet: 255.255.255.0
[08:52:36][C][wifi:449]: Gateway: 10.1.1.254
[08:52:36][C][wifi:450]: DNS1: 1.1.1.1
[08:52:36][C][wifi:451]: DNS2: 1.1.1.1
[08:52:36][D][wifi:626]: Disabling AP...
[08:52:36][C][web_server:100]: Setting up web server...
[08:52:36][C][api:026]: Setting up Home Assistant API server...
[08:52:36][D][main:110]: Restoring thermostat_global: 2750.000000
[08:52:36][I][app:062]: setup() finished successfully!
[08:52:36][W][component:170]: Component wifi cleared Warning flag
[08:52:36][W][component:157]: Component api set Warning flag: unspecified
[08:52:36][I][app:100]: ESPHome version 2024.10.3 compiled on Nov 21 2024, 15:28:27
[08:52:36][C][wifi:600]: WiFi:
[08:52:36][C][wifi:428]: Local MAC: 30:AE:A4:
[08:52:36][C][wifi:433]: SSID: 'wifiK'
[08:52:36][C][wifi:436]: IP Address: 10.1.1.65
[08:52:36][C][wifi:440]: BSSID: BC:EA:FA:
[08:52:36][C][wifi:441]: Hostname: 'thermostat'
[08:52:36][C][wifi:443]: Signal strength: -78 dB ▂▄▆█
[08:52:36][C][wifi:447]: Channel: 6
[08:52:36][C][wifi:448]: Subnet: 255.255.255.0
[08:52:36][C][wifi:449]: Gateway: 10.1.1.254
[08:52:36][C][wifi:450]: DNS1: 1.1.1.1
[08:52:36][C][wifi:451]: DNS2: 1.1.1.1
[08:52:36][C][logger:185]: Logger:
[08:52:36][C][logger:186]: Level: DEBUG
[08:52:36][C][logger:188]: Log Baud Rate: 115200
[08:52:36][C][logger:189]: Hardware UART: UART0
[08:52:36][C][uln2003.stepper:037]: ULN2003:
[08:52:36][C][uln2003.stepper:038]: Pin A: GPIO19
[08:52:36][C][uln2003.stepper:039]: Pin B: GPIO18
[08:52:36][C][uln2003.stepper:040]: Pin C: GPIO5
[08:52:36][C][uln2003.stepper:041]: Pin D: GPIO17
[08:52:36][C][uln2003.stepper:042]: Sleep when done: YES
[08:52:36][C][uln2003.stepper:055]: Step Mode: FULL STEP
[08:52:36][C][template.number:050]: Template Number 'Thermostat stepper'
[08:52:36][C][template.number:051]: Optimistic: YES
[08:52:36][C][template.number:052]: Update Interval: 60.0s
[08:52:36][C][captive_portal:089]: Captive Portal:
[08:52:36][C][web_server:153]: Web Server:
[08:52:36][C][web_server:154]: Address: thermostat.lan:80
[08:52:36][C][mdns:116]: mDNS:
[08:52:36][C][mdns:117]: Hostname: thermostat
[08:52:36][C][esphome.ota:073]: Over-The-Air updates:
[08:52:36][C][esphome.ota:074]: Address: thermostat.lan:3232
[08:52:36][C][esphome.ota:075]: Version: 2
[08:52:36][C][safe_mode:018]: Safe Mode:
[08:52:36][C][safe_mode:020]: Boot considered successful after 60 seconds
[08:52:36][C][safe_mode:021]: Invoke after 10 boot attempts
[08:52:36][C][safe_mode:023]: Remain in safe mode for 300 seconds
[08:52:36][C][api:140]: API Server:
[08:52:36][C][api:141]: Address: thermostat.lan:6053
[08:52:36][C][api:143]: Using noise encryption: YES
[08:53:29][I][safe_mode:041]: Boot seems successful; resetting boot loop counter
[08:53:29][D][esp32.preferences:114]: Saving 1 preferences to flash...
[08:53:29][D][esp32.preferences:143]: Saving 1 preferences to flash: 0 cached, 1 written, 0 failed
[08:54:25][D][number:054]: 'Thermostat stepper' - Setting number value
[08:54:25][D][number:113]: New number value: 1588.000000
[08:54:25][D][number:012]: 'Thermostat stepper': Sending state 1588.000000
[08:54:25][D][main:103]: Saved thermostat_global: 1588.000000
[08:55:10]
esp8266 must be enabled flash. esp32 may also be required.
esp8266: