Ardino case with k type thermo for P1S temps pegb

Ardino case with k type thermo for P1S accurate chamber temp for PEG BOARD, reporting through MQTT into home assistant

also printed a simple lid to “stick on” using ESP8266

ardino code - rough and ready … modify as you see fit

#include <max6675.h>

#include<Arduino.h>

#include<Wire.h>

#include <U8g2lib.h>

#include "ESP8266WiFi.h"

#include "max6675.h"

#include <PubSubClient.h>

U8G2_SSD1306_128X64_NONAME_F_SW_I2C

u8g2(U8G2_R0, /* clock=*/ 14, /* data=*/ 12, /* reset=*/ U8X8_PIN_NONE); // All Boards without Reset of the Display

// WiFi parameters to be configured

const char* ssid = ""; // Write here your router's username

const char* password = ""; // Write here your router's passward

const char* mqtt_broker = "HERE"; //your MQTT host

const int mqtt_port = 1883;

const char* topic = "temp/3dprint";

const int clockPin = 5; //D1

const int selectPin = 4; //D2

const int dataPin = 0; //D3

MAX6675 thermocouple(clockPin, selectPin, dataPin);

long temp = 00.00;

char result[8]; // Buffer big enough for 7-character float

//dtostrf(resistance, 6, 2, result);

WiFiClient espClient;

PubSubClient client(espClient);

void setup() {

// put your setup code here, to run once:

Serial.begin(9600);

// Connect to WiFi

WiFi.begin(ssid, password);

u8g2.begin();

u8g2.clearBuffer();

u8g2.setFont(u8g2_font_7x14B_tr);

// while wifi not connected yet, print '.'

// then after it connected, get out of the loop

while (WiFi.status() != WL_CONNECTED) {

delay(500);

Serial.print(".");

u8g2.drawStr(0,15,"CONNECTION FAILED");

}

//print a new line, then print WiFi connected and the IP address

Serial.println("");

Serial.println("WiFi connected");

// Print the IP address

Serial.println(WiFi.localIP());

//WiFi.localIP()

//u8g2.drawStr(0,15,WiFi.localIP().isValid());

u8g2.sendBuffer();

delay(1000);

client.setServer(mqtt_broker, mqtt_port);

client.connect("ESP8266","","");

}

void loop() {

// put your main code here, to run repeatedly:

u8g2.clearBuffer();

u8g2.setFont(u8g2_font_inb38_mf);

temp = thermocouple.readCelsius();

Serial.println(temp);

dtostrf(temp, 6, 3, result);

u8g2.drawStr(0,60,result);

Serial.print("C = ");

// Serial.println(thermocouple.readCelsius());

Serial.println(temp);

//Serial.print("status :");

//Serial.println(thermocouple.);

Serial.println(WiFi.localIP());

u8g2.sendBuffer();

client.publish(topic, result);

if (!client.connected()) {

Serial.println("MQTT not connected");

}

delay(1000);

}