Created
January 25, 2023 20:10
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Get Field1 of a ThingSpeak Channel and Set an LED Strip On or Off
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/* | |
Get Field1 of a ThingSpeak Channel and Set State of | |
WS2812 NeoPixel Strip using ESP32 | |
Requirements: | |
* ESP32 Wi-Fi Device | |
* Arduino 2.0.3+ IDE | |
* Additional Boards URL: https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json | |
* Library: ThingSpeak by MathWorks | |
* Library: Adafruit NeoPixel by Adafruit | |
Created: Jan 25, 2023 by Hans Scharler (https://nothans.com) | |
*/ | |
#include <WiFi.h> | |
WiFiClient client; | |
const char* SSID = "YOUR_SSID"; | |
const char* PASSWORD = "YOUR_PASSWORD"; | |
#include <ThingSpeak.h> | |
unsigned long myChannelNumber = YOUR_CHANNEL_NUMBER; | |
const char * myReadAPIKey = "YOUR_READ_API_KEY"; | |
#include <Adafruit_NeoPixel.h> | |
#define LED_COUNT 30 | |
#define LED_PIN 13 | |
Adafruit_NeoPixel strip = Adafruit_NeoPixel(LED_COUNT, LED_PIN, NEO_GRB + NEO_KHZ800); | |
void setup() { | |
Serial.begin(115200); | |
delay(100); | |
WiFi.mode(WIFI_STA); | |
WiFi.begin(SSID, PASSWORD); | |
while (WiFi.status() != WL_CONNECTED) { | |
delay(1000); | |
Serial.println("Connecting to WiFi..."); | |
} | |
Serial.println("Connected to WiFi"); | |
delay(100); | |
ThingSpeak.begin(client); | |
strip.begin(); | |
strip.setBrightness(100); | |
delay(100); | |
} | |
void loop() { | |
int field1 = ThingSpeak.readIntField(myChannelNumber, 1, myReadAPIKey); | |
if (field1 == 1) { | |
//Turn on | |
for (int i = 0; i < LED_COUNT; i++) { | |
strip.setPixelColor(i, strip.Color(255,255,255)); | |
} | |
strip.show(); | |
} | |
else if (field1 == 0) { | |
//Turn off | |
for (int i = 0; i < LED_COUNT; i++) { | |
strip.setPixelColor(i, strip.Color(0,0,0)); | |
} | |
strip.show(); | |
} | |
delay(15000); | |
} |
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