So I have been trying to monitor the temperature of my Wood Fired Oven and have a few issues, maybe this is a sign not to mix old and new but anyway.
The plan is to monitor 5 K-Type Thermocouples I have embedded within the oven. To this end I have an ESP Dev board, 5x Max31855 breakout boards, an i2c display for temp and a DHT22 as why not.
esphome:
name: pizza-oven
platform: ESP8266
board: esp01_1m
wifi:
ssid: !secret wifi_ssid
password: !secret wifi_password
# Enable fallback hotspot (captive portal) in case wifi connection fails
ap:
ssid: "Pizza Oven Fallback"
password: !secret fb_password
captive_portal:
# Enable logging
logger:
# Enable Home Assistant API
api:
password: !secret api_password
ota:
password: !secret ota_password
# Example configuration entry
spi:
miso_pin: 12
clk_pin: 14
sensor:
- platform: max31855
name: "WFO Temperature 1"
id: oven_temp1
cs_pin: 13
update_interval: 60s
- platform: max31855
name: "WFO Temperature 2"
id: oven_temp2
cs_pin: 1
update_interval: 60s
- platform: max31855
name: "WFO Temperature 3"
id: oven_temp3
cs_pin: 15
update_interval: 60s
- platform: max31855
name: "WFO Temperature 4"
id: oven_temp4
cs_pin: 0
update_interval: 60s
- platform: max31855
name: "WFO Temperature 5"
id: oven_temp5
cs_pin: 5
update_interval: 60s
- platform: max31855
name: "WFO Temperature 6"
id: oven_temp6
cs_pin: 16
update_interval: 60s
- platform: dht
pin: 3
temperature:
name: "Patio Temperature"
humidity:
name: "Patio Room Humidity"
update_interval: 60s
# Example configuration entry
i2c:
sda: 4
scl: 2
#Font
font:
- file: "arial.ttf"
id: my_font
size: 55
display:
- platform: ssd1306_i2c
model: "SSD1306 128x64"
address: 0x3C
update_interval: 10s
lambda: |-
it.print(0, 10, id(my_font), "Hello World!");
# if (id(oven_temp1).state > 40) {
# it.printf(64, 32, id(my_font), TextAlign::CENTER , "%.0f°", id(oven_temp1).state);
# } else {
# it.print(0, 0, id(my_font), "Off");
# }
It appears to mostly be working with some intermittent faults, but the temp readings are way out.
Any thoughts/help much appreciated.