ESP-32로 만든 온습도계 (wifi로 웹에서 확인)

esp-32 와 dht22 연결 방법 

[dht22]         [esp-32]

+            ->    3.3v

signal      ->   tx2(GPIO 17)

-            ->    gnd

 

휴대폰에서 접속하여 확인 하는 화면

 

 

 

 

 

 

준비물 : 가격은 구입시 가격

           1) esp-32   $4.16

                  https://www.aliexpress.com/item/33020838035.html?spm=a2g0s.9042311.0.0.27424c4dsV6OAx

 

US $4.18 |ESP32 ESP 32 ESP32S ESP 32S CP2102 Wireless WiFi Bluetooth Development Board Micro USB Dual Core Power Amplifier Filte

           2) dht22 $2.44 

                   https://www.aliexpress.com/item/32960118558.html?spm=a2g0s.9042311.0.0.27424c4dyaOXFN

 

US $2.68 |TEJIATE DHT22 Digital Temperature and Humidity Sensor AM2302 Module+PCB with Cable Dropshipping-in Sensors from Electr

          3)  점퍼케이블 $0.93 (20cm*20ea) 

                    https://www.aliexpress.com/item/32893313490.html?spm=a2g0s.9042311.0.0.27424c4dyaOXFN 

 

US $0.56 20% OFF|Dupont Line 10/20/30cm Male to Male,Male to Female,Female to Female Jumper Wire Dupont Cable for Arduino-in Int

 4) 전원어댑터 

 

 

참고 사이트 https://randomnerdtutorials.com/esp32-dht11-dht22-temperature-humidity-web-server-arduino-ide/