In this tutorial, I’ll first go into a little background about humidity, then I’ll explain how the DHT11 measures humidity. After that, I’ll show you how to connect the DHT11 to anArduinoand give you some example code so you can use the DHT11 in your own projects. BONUS: I ma...
Before installing ESP32 package in Arduino IDE, it’s crucial to ensure that you have the latest version of Arduino IDE. ESP32 has been known to have compatibility issues with previous versions of Arduino IDE. Therefore, we recommend deleting any old versions and installing the latest ones to ...
Step 1:Connect the Wio-E5 module directly to the “UART” slot of the Expansion Board. Step 2:Connect the DHT11 into the “A0/D0” socket as shown below. Software Preparation If this is the first time you work with Arduino, we strongly recommend you to seeGetting Started with Arduinobe...
For an illustration of how to assign a static IP address to ESP32, we use the example of anESP32 Web server with DHT11/DHT22. We will use the same sketch use in that tutorial except adding the functionality of assigning fix IP address. In order to understand the code given below, I ...
Step 17: Connect DHT22 sensor Solder a half brown cable to Arduino pin A0 (data) and a brown cable to Arduino pin 13 (VCC) as seen on the left picture. Then connect the DHT22 sensor with these cables and the half blue cable (GND) as seen on the right picture. Step 18: Fit ever...
For an Arduino, this is ok. For a Raspberry Pi, it can damage the pin, or even the Pi. We’re using two resistors, R1 a 1K Ohm resistor (top) and R2 a 2.2K Ohm resistor (bottom) to create a voltage divider. The legs of R1 and R2 go into the same row of the breadboard. ...
How to use I2C to connect an LCD to the Raspberry Pi. Learn how to scroll, position, and clear text, print the date, time, IP address, and sensor data.
I selected the correct board NodeMCU 1.0 (ESP-12E Module): In the Arduino IDE, I went to Tools > Board: * > NodeMCU 1.0 (ESP-12E Module). I set the correct port by going to Tools > Port and looking for a COM port labelled COM# (where # is a number). ...
See the above projects for how to program the ESP-01 using these hardware options. Instead of a USB to TTL 3V3 Serial Cable, it is also possible to program the ESP-01 using an Arduino UNO, usingthis circuit, but don't use the UNO 3V3 power pin as the ESP-01's power supply it is...
Connect DHT22 to pin 4 Connect Soil Moisture Sensor to pin 34 Connect Light sensor to pin 35 Connect LEDs to pin 23 Step 4: Making Your Telegram Bot Follow the steps on the following link. Note that you don't have to add any features to the bot. ...