DHT11 ESP32 SSD1306 display
Measure the temperature with ESP32 and DHT11 sensor
Purpose of this tutorial:
In this tutorial we will see how to read the temperature measured by the DTH11 sensor and display it on an SSD1306 display.
Necessary components
- ESP32
- DTH11 sensor
- SSD1306 display
-
Connecting wires
Mounting
To perform the assembly
For DTH11 sensor, we connect:
-
the DATA pin to pin D23 of the ESP32 board
-
the VCC pin to the 3.3V pin of the ESP32 board
-
the GND pin to the GND pin of the ESP32 board
For SSD1306 display, we connect:
-
the SDA pin to the D21 pin of the ESP32 board
-
the SCL pin to pin D22 of the ESP32 board
-
the VCC pin to the 3.3V pin of the ESP32 board
-
the GND pin to the GND pin of the ESP32 board
Micropython program
Here is the program which reads the temperature measured by the DTH11 sensor and displays it on SSD1306 display.
|
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 |
from machine import Pin from machine import Pin,I2C import ssd1306 import dht import time i2c = I2C(scl=Pin(22), sda=Pin(21)) #Init i2c oled=ssd1306.SSD1306_I2C(128,64,i2c,0x3c) p23=Pin(23, Pin.IN) d=dht.DHT11(p23) while True: d.measure() #Measurement of temperature t=d.temperature() #read the temperature print('Temperature=', t, 'C') time.sleep(1) #wait 1s oled.fill(0) oled.text("Temperature",10,10) oled.text(str(t),80,20) #display the temperature on the display oled.show() |
Note: you must import the following libraries: ssd1306
You can also see
0 commentaire
Leave a comment
Recent tutorials
Most viewed tutorials
Most commented tutorials
Scroll to Top