AZ-Delivery sells a development board “AZ-Visual”.
Based on a ESP8266 NodeMCU 12E.
Combined with a small SSD1306 128x32 display, a
SHT3XD sensor for temperature and humidity and a
LDR GL5549 (CDS-resistor) for brightness.
All on a round PCB of 50 mm diameter. Not very expensive.
If someone likes to use it with HA. Here is an example config:
esphome:
name: azvisual
friendly_name: AZVisual
esp8266:
board: esp12e
# Enable logging and prevent spam in log:
# Component xxxxxxx.display took a long time for an operation (0.14 s).
# Components should block for at most 20-30ms.
logger:
level: DEBUG
logs:
component: ERROR
# Enable Home Assistant API
api:
encryption:
key: <your key from homeassistant>
ota:
- platform: esphome
password: <your password>
wifi:
ssid: <your wifi ssid>
password: <your wifi password>
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: "Azvisual Fallback Hotspot"
password: "6EmoOc6nhDQo"
captive_portal:
# Optional, to see if wifi connection was successful
status_led:
pin: GPIO02
# Default I2C for esp8266
i2c:
sda: GPIO04
scl: GPIO05
scan: true
id: bus_a
# define as many fonts as you need
font:
- file: '/config/esphome/font/slkscr.ttf'
id: font1
size: 8
- file: '/config/esphome/font/BebasNeue-Regular.ttf'
id: font2
size: 48
- file: '/config/esphome/font/arial.ttf'
id: font3
size: 14
# this display is very small
# I decided to display only 2 lines at once
# and switch between 2 Pages
display:
- platform: ssd1306_i2c
model: "SSD1306 128x32"
id: azvisual_display
#reset_pin: GPIO00
address: 0x3C
pages:
- id: page1
lambda: |-
it.printf(0, 0, id(font3), "Temp: %.2f°C", id(outside_temp).state);
it.printf(0, 17, id(font3), "Humi : %.2f%%", id(outside_humi).state);
- id: page2
lambda: |-
it.printf(0, 12, id(font3), "Brigthness: %.0f", id(outside_brightness).state);
interval:
- interval: 15s
then:
- display.page.show_next: azvisual_display
- component.update: azvisual_display
# sensors for temperature and humidity
# analog reading for brightness
sensor:
- platform: sht3xd
temperature:
name: "Balcony Temperature"
id: outside_temp
humidity:
name: "Balcony Humidity"
id: outside_humi
address: 0x44
update_interval: 60s
- platform: adc
pin: GPIO17
name: "Balcony Brightness"
id: outside_brightness
accuracy_decimals: 2
update_interval: 60s
filters:
- multiply: 10000
Regards Christian