Arduino : Sending Data from ESP8266 to thingSpeak

Setting of ThingSpeak

1.       Create account in Think speak. And complete the validation

https://thingspeak.com/

2.       Create a new Channel in thingSpeak.

Then click on save channel. By default it will show the empty chart as like below.

Arduino : Connecting speaker

Simple application to check that the Speaker is connected to the  Arduino or not and how it will produce sound.

Required Items.

1. Speakar

2. Arduino

3. 5V

Follow the below code and upload into arduino for speaker connection

void setup() {   } void loop() {   tone(8,33, 500);   delay(2000);    tone(8,37, 500);    delay(2000);    tone(8,41, 500);    delay(2000); }

Circuit for Arduino Connecting speaker 

for more info you can see the below link. for creating melody Arduino Connecting speaker 

https://maker.pro/arduino/projects/arduino-speaker

Arduino : Blinking LED

Simple and first program of Arduino  for blinking of LED. [ This program is look like "Hello World"  for arduino.

Required Items.

1. LED

2. Arduino

3. 5V

Program for blinking of LED in Arduino.