Project Video
Project Details
This is basic code to measure temperature and himidity usiung HTUD21DF sensor. Full hardware, two types of code and
demonstation is shonw
in the video. The code is available below this video. To see custom code shown in video click
Here.
Topics Covered in this tutorial
- 00:00 Introduction
- 01:45 Hardware explaine
-
03:45 Wiring explained
04:33 Code Explained (basic code) - 09:04 Demonstration of basic code
- 10:04 Custom Code explained
- 13:04 Demonstration of custom code
Project Code
/***************************************************
This is an example for the HTU21D-F Humidity & Temp Sensor
Designed specifically to work with the HTU21D-F sensor from Adafruit
----> https://www.adafruit.com/products/1899
These displays use I2C to communicate, 2 pins are required to
interface
****************************************************/
#include
#include "Adafruit_HTU21DF.h"
// Connect Vin to 3-5VDC
// Connect GND to ground
// Connect SCL to I2C clock pin (A5 on UNO)
// Connect SDA to I2C data pin (A4 on UNO)
Adafruit_HTU21DF htu = Adafruit_HTU21DF();
void setup() {
Serial.begin(9600);
Serial.println("HTU21D-F test");
if (!htu.begin()) {
Serial.println("Couldn't find sensor!");
while (1);
}
}
void loop() {
float temp = htu.readTemperature();
float rel_hum = htu.readHumidity();
Serial.print("Temp: "); Serial.print(temp); Serial.print(" C");
Serial.print("\t\t");
Serial.print("Humidity: "); Serial.print(rel_hum); Serial.println(" \%");
delay(500);
}
Required File(s)
External Links
