LAN DS18B20 WEB Temperature Monitor 1 meter Cable
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ESP8266: UDP broadcast receiver

  ESP8266 UDP broadcast receiver     /* Wireless Serial using UDP ESP8266 Hardware: NodeMCU Circuits4you.com 2018 UDP Broadcast multi esp to esp communication */ #include <Wire.h> // Enable this line if using Arduino Uno, Mega, etc. #include “Adafruit_LEDBackpack.h” #include “Adafruit_GFX.h” Adafruit_7segment matrix = Adafruit_7segment(); #include <ESP8266WiFi.h> #include <WiFiUdp.h> const char *ssid = “KMTRONIC”; const . . .

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ESP8266: Adafruit VEML6070 I2C Test

ESP8266: Adafruit VEML6070 I2C Test   Connection: – NodeMCU GPIO0 -> D1 -> SCL (VEML6070) – NodeMCU GPIO4 -> D2 -> SDA (VEML6070) – NodeMCU +3.3 -> 3V3 -> VCC (VEML6070) – NodeMCU GND -> GND -> GND (VEML6070) Arduino code: #include <Wire.h> #include “Adafruit_VEML6070.h” Adafruit_VEML6070 uv = Adafruit_VEML6070(); void setup() { Serial.begin(9600); Serial.println(“VEML6070 Test”); . . .

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ESP8266: HT-16k33 7 Segment I2C Test

  ESP8266: HT-16k33 7 Segment I2C Test     Connection: – NodeMCU GPIO0 -> D1 -> SCL (HT-16k33) – NodeMCU GPIO4 -> D2 -> SDA (HT-16k33) – NodeMCU +3.3 -> 3V3 -> VCC (HT-16k33) – NodeMCU GND -> GND -> GND (HT-16k33)   Library: https://github.com/adafruit/Adafruit_LED_Backpack    Arduino code: /*************************************************** This is a library for our . . .

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ESP8266: Yet Another Arduino Wiegand Library

  Yet Another Arduino Wiegand Library     #define PIN_D0 D1 #define PIN_D1 D2 // The object that handles the wiegand protocol Wiegand wiegand; // Initialize Wiegand reader void setup() { Serial.begin(9600); delay(1); Serial.println(“Start…”); //Install listeners and initialize Wiegand reader wiegand.onReceive(receivedData, “Card readed: “); wiegand.onStateChange(stateChanged, “State changed: “); wiegand.begin(WIEGAND_LENGTH_AUTO); //initialize pins as INPUT pinMode(PIN_D0, INPUT); . . .

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Arduino: Microchip Keeloq Retransmit Garage Door Code

Arduino: Microchip Keeloq Retransmit Garage Door Code   // Taken from http://arduino.ru/forum/apparatnye-voprosy/biblioteka-chteniya-id-brelkov-signalizatsiii-hcs301-keeloq?page=1 #include “math.h” #define txPin 8 #define rxPin 7 #define signalPin 6 int lastRxValue = 0; int tempRxValue = 0; unsigned long lastRxTime = 0; unsigned long tempTime = 0; unsigned long difTime = 0; boolean bValidPacket = false; int decodeMethod = 1; //0 . . .

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KMtronic LAN WEB 8 Channel Relay board