My first forum post. Thanks for all the help you guys provided so far!.
I hope you’ll excuse the rather trivial ‘Looroll Monitor’ use case. I’m using it to get to know ESP Home.
I’m running on a Home Assistat Yellow installed following the setup instructions. My ESPHome board is an S2 mini. I have a Ultrasonic Sensor which measures distance. From this I calculate Thickness and Length using copy sensors, I display the results on a screen. This much works fine.
I am now trying to capture change in length over past day (say, I use 5 min to get started) using a statistical sensor in Home Assistant which want to bring in to ESP home using a ‘homeassistant’ sensor so I can display it.
The statistical sensor is visible in HA ‘Helpers’ and is showing data.
I cut and pasted the id into the ESP Home yaml.
The error message crops up when I try to install the code with the ‘homeassistant’ sensor added. Without it, it all installs fine.
This is my YAML
esphome:
name: loo-roll-monitor
friendly_name: Loo Roll Monitor
esp32:
board: lolin_s2_mini
variant: esp32s2
framework:
type: esp-idf
# Enable logging
logger:
# Enable Home Assistant API
api:
encryption:
key: "SOW4UTKa8b6uJfU8P6A4QdP/qaTf4InUqHUSBCe7+cQ="
ota:
- platform: esphome
password: "0e19c7e525483d3d2e2185995139cb0d"
wifi:
ssid: ******
password: ******
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: "Loo-Roll-Monitor"
password: "Ki07zxEORnUq"
captive_portal:
time:
- platform: homeassistant
id: ha_time
sensor:
- platform: ultrasonic
trigger_pin: 18
echo_pin: 16
id: Distance
update_interval: 10s
- platform: copy
source_id: Distance
id: Thickness
filters:
- lambda: |-
return(9.6 - (x*100.0));
- platform: copy
# 25m * % of full roll where full is 4cm thick and 25m long
source_id: Thickness
name: "Loo Roll Length"
id: Length
filters:
- lambda: |-
return 25*x*(x+4.0)/32.0;
- platform: homeassistant
entity_id: sensor.looroll_useage
id: Useage
font:
# gfonts://family[@weight]
- file: "gfonts://Roboto"
id: font1
size: 20
spi:
clk_pin: 5
mosi_pin: 9
display:
- platform: waveshare_epaper
cs_pin: 7
dc_pin: 11
busy_pin: 3
model: 1.54inv2
full_update_every: 1
update_interval: 30s
lambda: |-
it.strftime(0, 0, id(font1), "%b-%d %H:%M", id(ha_time).now());
it.printf(130, 0, id(font1), "%.2f cm", id(Thickness).state);
it.circle(140, 140, 55);
it.filled_ring(140, 140, 20 + 10*id(Thickness).state, 20);
it.printf(0, 20, id(font1), "%.1f metres", id(Length).state);
it.printf(0, 40, id(font1), "Distance %.1f cm ", id(Distance));
# it.printf(9, 60, id(font1), "Useage %1f m", id(Useage));
and the log with the error:
INFO ESPHome 2024.12.2
INFO Reading configuration /config/esphome/loo-roll-monitor.yaml...
INFO Detected timezone 'Europe/Berlin'
INFO Generating C++ source...
INFO Updating https://github.com/espressif/[email protected]
INFO Compiling app...
Processing loo-roll-monitor (board: lolin_s2_mini; framework: espidf; platform: https://github.com/pioarduino/platform-espressif32.git#51.03.07)
--------------------------------------------------------------------------------
HARDWARE: ESP32S2 240MHz, 320KB RAM, 4MB Flash
- framework-espidf @ 3.50105.0 (5.1.5)
- tool-cmake @ 3.21.3
- tool-esptoolpy @ 4.8.1
- tool-mklittlefs @ 3.2.0
- tool-ninja @ 1.10.2
- tool-riscv32-esp-elf-gdb @ 12.1.0+20221002
- tool-xtensa-esp-elf-gdb @ 12.1.0+20221002
- toolchain-esp32ulp @ 2.35.0-20220830
- toolchain-riscv32-esp @ 12.2.0+20230208
- toolchain-xtensa-esp32s2 @ 12.2.0+20230208
Reading CMake configuration...
Dependency Graph
|-- noise-c @ 0.1.6
Linking .pioenvs/loo-roll-monitor/firmware.elf
/data/cache/platformio/packages/toolchain-xtensa-esp32s2/bin/../lib/gcc/xtensa-esp32s2-elf/12.2.0/../../../../xtensa-esp32s2-elf/bin/ld: .pioenvs/loo-roll-monitor/src/main.cpp.o:(.literal._Z5setupv+0x118): undefined reference to `_ZTVN7esphome13homeassistant19HomeassistantSensorE'
/data/cache/platformio/packages/toolchain-xtensa-esp32s2/bin/../lib/gcc/xtensa-esp32s2-elf/12.2.0/../../../../xtensa-esp32s2-elf/bin/ld: .pioenvs/loo-roll-monitor/src/main.cpp.o:(.literal._Z5setupv+0x11c): undefined reference to `_ZTVN7esphome13homeassistant19HomeassistantSensorE'
collect2: error: ld returned 1 exit status
*** [.pioenvs/loo-roll-monitor/firmware.elf] Error 1
========================= [FAILED] Took 40.39 seconds =========================
Thanks for any help you can provide.
