Hi,
I’m trying to set up a basic display of power/voltage (not started implementing yet) on a esp32 device (LILYGO® TTGO T-Display ESP32 WiFi and Bluetooth Module Development Board For Arduino 1.14 Inch LCD). I’d like the output to be colored (based on power), and the below code (with all the mess with ifs) is getting me halfway there - it seems to not understand the places where I’m comparing values to zero. i.e. id(power_consumption).state is never displayed in id(my_green).
How can I fix that?
Bonus question: can I simplify the code (are there switch/elseif staement equivalents)?
# Create a new node in ESPHome. Add these lines to the yaml file
substitutions:
devicename: ttgo01
# just change the devicename above not the devicename below
esphome:
name: ttgo01
platform: ESP32
board: featheresp32
logger:
api:
ota:
password: !secret esphome_ota
captive_portal:
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
ap:
ssid: "${devicename} Fallback Hotspot"
password: !secret esphome_ota
color:
- id: my_red
red: 100%
green: 0%
blue: 0%
- id: my_yellow
red: 100%
green: 100%
blue: 0%
- id: my_green
red: 0%
green: 100%
blue: 0%
- id: my_blue
red: 0%
green: 0%
blue: 100%
- id: my_gray
red: 50%
green: 50%
blue: 50%
font:
- file: "SFCompact.ttf"
id: sfcompact_48
size: 48
- file: "SFCompact.ttf"
id: sfcompact_24
size: 24
- file: "SFCompact.ttf"
id: sfcompact_S
size: 14
# put a ttf font called sfcompact.ttf in the esphome folder
binary_sensor:
- platform: gpio
pin:
number: GPIO0
inverted: true
name: ${devicename}top push
id: tdisplay_button_input_0
- platform: gpio
pin:
number: GPIO35
inverted: true
id: tdisplay_button_input_1
name: ${devicename}bottom push
- platform: status
name: "Node Status"
id: system_status
switch:
- platform: restart
name: ${devicename} restart
# replace my entity IDs with your entity IDs below
sensor:
- platform: homeassistant
id: power_generation
entity_id: sensor.t_series_generation_power
unit_of_measurement: 'W'
state_class: measurement
- platform: homeassistant
id: power_consumption_phase_1
entity_id: sensor.electricity_meter_power_active_phase_1
unit_of_measurement: 'W'
state_class: measurement
- platform: homeassistant
id: power_consumption_phase_2
entity_id: sensor.electricity_meter_power_active_phase_2
unit_of_measurement: 'W'
state_class: measurement
- platform: homeassistant
id: power_consumption_phase_3
entity_id: sensor.electricity_meter_power_active_phase_3
internal: true
- platform: homeassistant
id: power_consumption
entity_id: sensor.energia_czynna_aktualnie_pobierana
internal: true
time:
- platform: homeassistant
id: esptime
spi:
clk_pin: GPIO18
mosi_pin: GPIO19
display:
- platform: st7789v
model: TTGO TDisplay 135x240
backlight_pin: GPIO4
cs_pin: GPIO5
dc_pin: GPIO16
reset_pin: GPIO23
rotation: 90
lambda: |-
it.line(0, 25, 240, 25);
if (id(power_consumption).state > 2000){
it.printf(50, 0, id(sfcompact_24), id(my_red), TextAlign::TOP_CENTER, "%.0f W", id(power_consumption).state);
}
else{
if (0 > id(power_consumption).state < 2000){
it.printf(50, 0, id(sfcompact_24), id(my_yellow), TextAlign::TOP_CENTER, "%.0f W", id(power_consumption).state);
}
else {
if (id(power_consumption).state < 0){
it.printf(50, 0, id(sfcompact_24), id(my_green), TextAlign::TOP_CENTER, "%.0f W", id(power_consumption).state);
}
}
}
if (id(power_consumption_phase_1).state > 1000){
it.printf(50, 30, id(sfcompact_24), id(my_red), TextAlign::TOP_CENTER, "%.0f W", id(power_consumption_phase_1).state);
}
else{
if (id(power_consumption_phase_1) < 0){
it.printf(50, 30, id(sfcompact_24), id(my_green), TextAlign::TOP_CENTER, "%.0f W", id(power_consumption_phase_1).state);
}
else {
if (id(power_consumption_phase_1).state < 1000){
it.printf(50, 30, id(sfcompact_24), id(my_yellow), TextAlign::TOP_CENTER, "%.0f W", id(power_consumption_phase_1).state);
}
}
}
if (id(power_consumption_phase_2).state > 1000){
it.printf(50, 60, id(sfcompact_24), id(my_red), TextAlign::TOP_CENTER, "%.0f W", id(power_consumption_phase_2).state);
}
else{
if (0 > id(power_consumption_phase_2).state < 1000){
it.printf(50, 60, id(sfcompact_24), id(my_yellow), TextAlign::TOP_CENTER, "%.0f W", id(power_consumption_phase_2).state);
}
else {
if (id(power_consumption_phase_2).state < 0){
it.printf(50, 60, id(sfcompact_24), id(my_green), TextAlign::TOP_CENTER, "%.0f W", id(power_consumption_phase_2).state);
}
}
}
if (id(power_consumption_phase_3).state > 1000){
it.printf(50, 90, id(sfcompact_24), id(my_red), TextAlign::TOP_CENTER, "%.0f W", id(power_consumption_phase_3).state);
}
else{
if (0 > id(power_consumption_phase_3).state < 1000){
it.printf(50, 90, id(sfcompact_24), id(my_yellow), TextAlign::TOP_CENTER, "%.0f W", id(power_consumption_phase_3).state);
}
else {
if (id(power_consumption_phase_3).state < 0){
it.printf(50, 90, id(sfcompact_24), id(my_green), TextAlign::TOP_CENTER, "%.0f W", id(power_consumption_phase_3).state);
}
}
}
if (id(power_generation).state > 0) {
if (id(power_generation).state > 2000){
it.printf(200, 0, id(sfcompact_24), id(my_green), TextAlign::TOP_CENTER, "%.0f W", id(power_generation).state);
}
else{
if (1000 > id(power_generation).state < 2000){
it.printf(200, 0, id(sfcompact_24), id(my_yellow), TextAlign::TOP_CENTER, "%.0f W", id(power_generation).state);
}
else {
if (id(power_generation).state < 1000){
it.printf(200, 0, id(sfcompact_24), id(my_red), TextAlign::TOP_CENTER, "%.0f W", id(power_generation).state);
}
}
}
}
else {
it.printf(200, 0, id(sfcompact_24), id(my_red), TextAlign::TOP_CENTER, "Offline");
}
No need to test the same boundary in the else part again. And don’t forget to test the boundaries correct, what happens in your if’s if the value is 0.