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How did you implement the battery sensor? I have a FireBeetle 2 ESP32-E IoT. There is a built-in battery connector
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I have Aqara Zigbee Temp / Humidity / Pressure sensor which also shows battery level in Home Assistant. From there, itâs only a matter of adding it to the config. If yours is visible in HA then all you need to do is change the portion of my code to match your entity.
How on earth do I get stuff aligned? Look at the bottom there with the âSons Of T(he) forestâ countdown. The icon and the text as al wrong but the others seems fine?!
Here comes the code! Iâve tried all of the text alignments but I canât figure it out⌠Really wish there was some software so that one could try the code out and view the result without rewriting the microcontroller and refreshing the E-ink display.
// Show loading screen before data is received.
if (id(initial_data_received) == false) {
it.printf(240, 390, id(font_small_bold), TextAlign::BASELINE_CENTER, "VĂNTAR PĂ
DATA...");
} else {
// FORECAST
it.printf(240, 75, id(font_title), TextAlign::TOP_CENTER, "VĂDER");
it.printf(100, 149, id(font_mdi_large), TextAlign::TOP_CENTER, "%s", weather_icon_map[id(weather_condition_now).state.c_str()].c_str());
it.printf(300, 149, id(font_large_bold), TextAlign::TOP_CENTER, "%2.0f°C", id(weather_temperature_now).state);
// FORECAST
it.printf(55, 291, id(font_mdi_medium), TextAlign::BASELINE_CENTER , "\U000F00F6");
it.printf(143, 291, id(font_mdi_medium), TextAlign::BASELINE_CENTER , "\U000F18D6");
it.printf(228, 291, id(font_mdi_medium), TextAlign::BASELINE_CENTER , "\U000F050F");
it.printf(316, 291, id(font_mdi_medium), TextAlign::BASELINE_CENTER, "\U000F054A");
it.printf(404, 291, id(font_mdi_medium), TextAlign::BASELINE_CENTER , "\U000F15FA");
it.printf(55, 326, id(font_small_bold), TextAlign::BASELINE_CENTER , "%s", id(weather_timestamp_0).state.c_str());
it.printf(146, 326, id(font_mdi_small), TextAlign::BASELINE_CENTER , "%s", weather_icon_map[id(weather_condition_0).state.c_str()].c_str());
it.printf(228, 326, id(font_small_bold), TextAlign::BASELINE_CENTER , "%2.0f °C", id(weather_temperature_0).state);
it.printf(316, 326, id(font_small_bold), TextAlign::BASELINE_CENTER , "%2.0f mm", id(weather_precipitation_0).state);
it.printf(404, 326, id(font_small_bold), TextAlign::BASELINE_CENTER , "%2.0f m/s", id(weather_wind_speed_0).state);
it.printf(55, 351, id(font_small_bold), TextAlign::BASELINE_CENTER , "%s", id(weather_timestamp_1).state.c_str());
it.printf(146, 351, id(font_mdi_small), TextAlign::BASELINE_CENTER , "%s", weather_icon_map[id(weather_condition_1).state.c_str()].c_str());
it.printf(228, 351, id(font_small_bold), TextAlign::BASELINE_CENTER , "%2.0f °C", id(weather_temperature_1).state);
it.printf(316, 351, id(font_small_bold), TextAlign::BASELINE_CENTER , "%2.0f mm", id(weather_precipitation_1).state);
it.printf(404, 351, id(font_small_bold), TextAlign::BASELINE_CENTER , "%2.0f m/s", id(weather_wind_speed_1).state);
it.printf(55, 376, id(font_small_bold), TextAlign::BASELINE_CENTER , "%s", id(weather_timestamp_2).state.c_str());
it.printf(146, 376, id(font_mdi_small), TextAlign::BASELINE_CENTER , "%s", weather_icon_map[id(weather_condition_2).state.c_str()].c_str());
it.printf(228, 376, id(font_small_bold), TextAlign::BASELINE_CENTER , "%2.0f °C", id(weather_temperature_2).state);
it.printf(316, 376, id(font_small_bold), TextAlign::BASELINE_CENTER , "%2.0f mm", id(weather_precipitation_2).state);
it.printf(404, 376, id(font_small_bold), TextAlign::BASELINE_CENTER , "%2.0f m/s", id(weather_wind_speed_2).state);
it.printf(55, 401, id(font_small_bold), TextAlign::BASELINE_CENTER, "%s", id(weather_timestamp_3).state.c_str());
it.printf(146, 401, id(font_mdi_small), TextAlign::BASELINE_CENTER, "%s", weather_icon_map[id(weather_condition_3).state.c_str()].c_str());
it.printf(228, 401, id(font_small_bold), TextAlign::BASELINE_CENTER, "%2.0f °C", id(weather_temperature_3).state);
it.printf(316, 401, id(font_small_bold), TextAlign::BASELINE_CENTER, "%2.0f mm", id(weather_precipitation_3).state);
it.printf(404, 401, id(font_small_bold), TextAlign::BASELINE_CENTER , "%2.0f m/s", id(weather_wind_speed_3).state);
// CALENDAR
it.printf(240, 441, id(font_medium_bold), TextAlign::BASELINE_CENTER, "KALENDER");
it.printf(35, 491, id(font_mdi_medium), TextAlign::BASELINE_LEFT, "\U000F1823");
it.printf(85, 491, id(font_small_bold), TextAlign::BASELINE_LEFT, "%s", id(calendar_familj_event).state.c_str());
it.printf(300, 491, id(font_small_bold), TextAlign::BASELINE_LEFT, "%s", id(calendar_familj_txt_days).state.c_str());
it.printf(35, 541, id(font_mdi_medium), TextAlign::BASELINE_LEFT, "\U000F0E7C");
it.printf(85, 541, id(font_small_bold), TextAlign::BASELINE_LEFT, "%s", id(calendar_mossen_event).state.c_str());
it.printf(300, 541, id(font_small_bold), TextAlign::BASELINE_LEFT, "%s", id(calendar_mossen_txt_days).state.c_str());
it.printf(35, 591, id(font_mdi_medium), TextAlign::BASELINE_LEFT, "\U000F00EB");
it.printf(85, 591, id(font_small_bold), TextAlign::BASELINE_LEFT, "%s", id(calendar_fodelsedagar_event).state.c_str());
it.printf(300, 591, id(font_small_bold), TextAlign::BASELINE_LEFT, "%s", id(calendar_fodelsedagar_txt_days).state.c_str());
it.printf(35, 641, id(font_mdi_medium), TextAlign::BASELINE_LEFT, "\U000F02B4");
it.printf(85, 641, id(font_small_bold), TextAlign::BASELINE_LEFT, "%s", id(calendar_media_event).state.c_str());
it.printf(300, 641, id(font_small_bold), TextAlign::BASELINE_LEFT, "%s", id(calendar_media_txt_days).state.c_str());
// FOOTER
//Divider draw a line from [x=0,y=0] to [x=50,y=50]
it.line(0, 665, 480, 665);
// Show date and time of last update
it.strftime(240, 700, id(font_small_bold), TextAlign::BASELINE_CENTER, "UPPDATERAD: %Y-%m-%d %H:%M", id(ntp).now());
}
Hey guys,
Picked up this project again after a little bit.
Code is not my thing sadly 
wondering if someone can give me a code example for having the display show a list from a calendar entity?
I can get it to show the titles (although the latest ESPHome update seems to have kinda broken it again), but unsure how to get it to display the list from the sensor?
If anyone can have a look and point me in the right direction, would super appreciate that? Here is what I got so far.
esphome:
name: to-do
on_boot:
priority: 200.0
then:
- component.update: eink_display
esp32:
board: esp32dev
framework:
type: arduino
# Enable logging
logger:
# Enable Home Assistant API
api:
encryption:
key: ""
ota:
password: ""
# Global variables for detecting if the display needs to be refreshed. (Thanks @paviro!)
globals:
- id: data_updated
type: bool
restore_value: no
initial_value: 'false'
- id: initial_data_received
type: bool
restore_value: no
initial_value: 'false'
# Include custom fonts
font:
- file: 'fonts/GothamRnd-Book.ttf'
id: font_small_book
size: 18
- file: 'fonts/GothamRnd-Bold.ttf'
id: font_large_bold
size: 108
#glyphs: [' ', '°', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'C']
- file: 'fonts/GothamRnd-Bold.ttf'
id: font_title
size: 54
#glyphs: ['W', 'E', 'A', 'T', 'H', 'R', 'L', 'I', 'N', ' ']
- file: 'fonts/GothamRnd-Bold.ttf'
id: font_medium_bold
size: 30
# glyphs: [' ', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'M', 'I', 'N']
- file: 'fonts/GothamRnd-Bold.ttf'
id: font_small_bold
size: 18
# glyphs: ['°', '0', '1', +'2', '3', '4', '5', '6', '7', '8', '9', 'C', 'M', 'I', 'N']
# Check whether the display needs to be refreshed every minute,
# based on whether new data is received or motion is detected. (Thanks @paviro!)
time:
- platform: homeassistant
id: homeassistant_time
on_time:
- seconds: 0
minutes: /1
then:
- if:
condition:
lambda: 'return id(data_updated) == true;'
then:
- lambda: 'id(initial_data_received) = true;'
- if:
condition:
binary_sensor.is_on: motion_detected
then:
- logger.log: "Sensor data updated and activity in home detected: Refreshing display..."
- component.update: eink_display
- lambda: 'id(data_updated) = false;'
else:
- logger.log: "Sensor data updated but no activity in home - skipping display refresh."
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: "To-Do Fallback Hotspot"
password: ""
# Check if motion is detected in the bathroom.
binary_sensor:
- platform: homeassistant
entity_id: binary_sensor.bathroom_mmwave
id: motion_detected
# Call calender sensors from HA.
sensor:
- platform: homeassistant
entity_id: calendar.home_assistant_tasks
id: home_assistant_tasks
on_value:
then:
- lambda: 'id(data_updated) = true;'
- platform: homeassistant
entity_id: calendar.alexa_to_do_list
id: alexa_to_do_list
on_value:
then:
- lambda: 'id(data_updated) = true;'
- platform: homeassistant
entity_id: calendar.alexa_shopping_list
id: alexa_shopping_list
on_value:
then:
- lambda: 'id(data_updated) = true;'
# Define colors
# This design is white on black so this is necessary.
color:
- id: color_black
red: 0%
green: 0%
blue: 0%
white: 50%
- id: color_white
red: 0%
green: 0%
blue: 0%
white: 0%
# Pins for Waveshare ePaper ESP Board
spi:
clk_pin: GPIO13
mosi_pin: GPIO14
# Now render everything on the ePaper screen.
display:
- platform: waveshare_epaper
id: eink_display
cs_pin: GPIO15
dc_pin: GPIO27
busy_pin: GPIO25
reset_pin: GPIO26
reset_duration: 2ms
model: 7.50inV2
update_interval: 1h
rotation: 90°
lambda: |-
// Fill background.
// it.fill(color_bg);
// Show loading screen before data is received.
if (id(initial_data_received) == false) {
it.printf(240, 390, id(font_title), color_black, TextAlign::TOP_CENTER, "WAITING FOR DATA...");
} else {
// To Do List
it.printf(240, 84, id(font_title), color_black, TextAlign::TOP_CENTER, "To Do");
// Shopping List Section
it.printf(240, 408, id(font_title), color_black, TextAlign::TOP_CENTER, "Shopping List");
}
captive_portal:
Did you check if the strings sent from HA was not truncated?
I didnât integrate calendar into my setup, but looks like @filikun did so they might be able to point you in the right direction. 
Awesome, thank you!
I was looking at what other people did, but missed that because its just one value, not a list.
Ill give it a go tonight, I wonder how it will do a list of text. Ill post back
Thanks again for spotting it
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So trying to update to 2023.2.4
and getting this error, which is a good thing because its pointing me to why the thing wont work lol
/config/esphome/to-do.yaml: In lambda function:
/config/esphome/to-do.yaml:173:102: error: request for member 'c_str' in 'alexa_to_do_list->esphome::homeassistant::HomeassistantSensor::<anonymous>.esphome::sensor::Sensor::state', which is of non-class type 'float'
it.printf(85, 491, id(font_small_bold), TextAlign::BASELINE_LEFT, "%s", id(alexa_to_do_list).state.c_str());
^~~~~
/config/esphome/to-do.yaml:178:105: error: request for member 'c_str' in 'alexa_shopping_list->esphome::homeassistant::HomeassistantSensor::<anonymous>.esphome::sensor::Sensor::state', which is of non-class type 'float'
it.printf(85, 491, id(font_small_bold), TextAlign::BASELINE_LEFT, "%s", id(alexa_shopping_list).state.c_str());
^~~~~
*** [/data/to-do/.pioenvs/to-do/src/main.cpp.o] Error 1
So not sure how this works, but Iâm trying to show my todoist list.
I have the â.c_str()â added, but I guess the error says it does not get text from the entity?
If I look at that entity in dev tools, I donât get any attributes other then the friendly name. So not really sure how to get the data out of it to display.
EDIT*
So I had a look in the custom card that actually displays this info on my dashboard and it seems its;
tasksList = hass.states[entityId].attributes.all_tasks
So I tried that. But get the following error, didnt work. Clearly no idea what Im doing HAHA
/config/esphome/to-do.yaml: In lambda function:
/config/esphome/to-do.yaml:173:96: error: 'class esphome::homeassistant::HomeassistantSensor' has no member named 'attributes'; did you mean 'attribute_'?
it.printf(85, 491, id(font_small_bold), TextAlign::BASELINE_LEFT, "%s", id(alexa_to_do_list).attributes.all_tasks.state.c_str());
^~~~~~~~~~
attribute_
/config/esphome/to-do.yaml:178:99: error: 'class esphome::homeassistant::HomeassistantSensor' has no member named 'attributes'; did you mean 'attribute_'?
it.printf(85, 491, id(font_small_bold), TextAlign::BASELINE_LEFT, "%s", id(alexa_shopping_list).attributes.all_tasks.state.c_str());
^~~~~~~~~~
attribute_
*** [/data/to-do/.pioenvs/to-do/src/main.cpp.o] Error 1
EDIT 2 Ok, one thing. The calendar was actually empty, fixed that and after a bit more reading and help from ChatGPT LOL
created the template sensor, its showing as as it should I guess.
But im still getting the same error?
/config/esphome/to-do.yaml: In lambda function:
/config/esphome/to-do.yaml:166:102: error: request for member 'c_str' in 'alexa_to_do_list->esphome::homeassistant::HomeassistantSensor::<anonymous>.esphome::sensor::Sensor::state', which is of non-class type 'float'
it.printf(85, 491, id(font_small_bold), TextAlign::BASELINE_LEFT, "%s", id(alexa_to_do_list).state.c_str());
^~~~~
/config/esphome/to-do.yaml:171:105: error: request for member 'c_str' in 'alexa_shopping_list->esphome::homeassistant::HomeassistantSensor::<anonymous>.esphome::sensor::Sensor::state', which is of non-class type 'float'
it.printf(85, 491, id(font_small_bold), TextAlign::BASELINE_LEFT, "%s", id(alexa_shopping_list).state.c_str());
^~~~~
Oh I also updated the the sensors in the ESPHome yaml
sensor:
- platform: homeassistant
entity_id: sensor.esphome_to_do
id: alexa_to_do_list
on_value:
then:
- lambda: 'id(data_updated) = true;'
- platform: homeassistant
entity_id: sensor.epshome_shopping_list
id: alexa_shopping_list
on_value:
then:
- lambda: 'id(data_updated) = true;'
Edit 3
text_sensor
LOL ok, its now updated⌠and kind of working
Now if anyone has any idea why it looks like complete rubbish HAHA, I would be most grateful
Check that the A / B switch on the board is correct. I believe it should be set to B for this display if I remember correctly.
No I intentionally truncate them to make them not take the whole area, so the sensor is truncated. Can that affect itâs alignment?
@liminal I have done something like that! Hereâs my code, modify it and add it to the weatherman sensor as an attribute (as the rest of them). It is in Swedish but you can translate it to whatever you want
calendar_familj_event: >
{% set event = state_attr('calendar.familj', 'message') %}
{{ event |truncate(13, True, '...',0) |upper }}
calendar_familj_txt_days: >
{% set t = now() %}
{% set midnight = today_at() %}
{% set event = state_attr('calendar.familj', 'start_time') | as_datetime | as_local %}
{% set delta = event - midnight %}
{% if delta.days == 0 %}
IDAG
{% elif delta.days == 1 %}
IMORGON
{% elif delta.days == 2 %}
IĂVERMORGON
{% else %}
OM {{ delta.days }} DAGAR
{% endif %}
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Its set on the right one for the 7.5" screen. Iâve actually tried both.
I just wish I knew why it was showing so badly.
I think its having these issues because I got the red and black one. Did anyone get that one and have a workaround?
Thanks for that!!! I kinda got it working.
Im really just looking not to have one entry per line. Ive been looking around, but cant seem to see how that works 
if anyone knows 
Id appreciate it
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I also have the black & red board, and for me changing the board model to 7.50in-bV2 seems to have fixed the rendering issue :
display:
- platform: waveshare_epaper
id: epaper_display
cs_pin: GPIO15
dc_pin: GPIO27
busy_pin: GPIO25
reset_pin: GPIO26
model: 7.50in-bV2
reset_duration: 200ms
update_interval: never
rotation: 90°
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Today my e-Paper and e-Paper driver board with integrated ESP32 board arrived.
Beginners question 
As this is my first time working with these cables (I did do an mcu with seperate plugs) is it just a matter of plugging the cable in with a little force or can I open the small connector on the board as a lever for low force plugin?
I donât want to kill it before even switching it on.
Maybe post some pics?
Has anyone see this?
Have all my sensors set up right, data is coming though.
But on the actual screen. It shows the same thing???
[17:58:11][D][text_sensor:067]: 'Today Weather': Sending state 'partlycloudy'
[17:58:11][D][homeassistant.text_sensor:017]: 'sensor.esphome_to_do': Got state '['Work on lights', 'Fix Formatting ESP32']'
[17:58:11][D][text_sensor:067]: 'alexa_to_do_list': Sending state '['Work on lights', 'Fix Formatting ESP32']'
[17:58:11][D][homeassistant.text_sensor:017]: 'sensor.epshome_shopping_list': Got state '['tissues']'
[17:58:11][D][text_sensor:067]: 'alexa_shopping_list': Sending state '['tissues']'
[17:58:11][D][homeassistant.text_sensor:017]: 'sensor.bedroom_temperature': Got state '26.4'
[17:58:11][D][text_sensor:067]: 'bedroom_temp': Sending state '26.4'
[17:58:11][D][homeassistant.sensor:022]: 'weather.home::temperature': Got attribute state 23.90
[17:58:11][D][sensor:127]: 'weather_temperature': Sending state 23.90000 with 1 decimals of accuracy
Logs are different, as you can see
YAML is each its own sensor;
// Outside Temp
it.printf(80, 90, id(icon_font), TextAlign::BASELINE_LEFT, "\U000F18D7");
// it.printf(100, 85, id(font_title), color_black, TextAlign::BASELINE_LEFT, "O:");
it.printf(130, 85, id(font_title), color_black, TextAlign::BASELINE_LEFT, "%2.0f°", id(weather_temperature).state);
// Inside Temp
it.printf(240, 90, id(icon_font), TextAlign::BASELINE_LEFT, "\U000F0F55");
// it.printf(290, 85, id(font_title), color_black, TextAlign::BASELINE_LEFT, "I:");
it.printf(290, 85, id(font_title), color_black, TextAlign::BASELINE_LEFT, "%2.0f°", id(bedroom_temp).state);
But they both show on the display as 24
WTF? LOL
Can anyone see anything wrong?
Thanks
EDIT
Never mind, I moved it to sensor and it shows the right valueâŚ
You just have to pull up that little lever on the back of the connector (with your nail for example).
1 Like