Wemos Mini and I2C LCD example. Sometimes a nice big LCD is useful for your projects, in this example we will interface to an I2C LCD using our ESP32. Now these I2C LCD's consist of 2 parts usually an HD44780 16×2 LCD and an I2C backpack which connects to the LCD exposing the standard power and I2C pins. This is a typical module you can buy
ESP8266 WeMos D1 Mini Tutorial. In this tutorial you learn the highlights of the ESP8266 WeMos D1 Mini regarding its datasheet, the pinout and three different possibilities for the power supply. Moreover, you learn how to use the power modes of the ESP8266 to reduce the power consumption up to 99% in the deep sleep mode.
\n. Note \n. Don't forget to change PORT_NAME and FIRMWARE.bin. \n. In Linux, PORT_NAME is like /dev/ttyUSB0.\nIn windows, PORT_NAME is like COM4. \n May 8, 2022. This tutorial shows how to use the I2C LCD (Liquid Crystal Display) with the ESP8266 Wemos D1 Mini using Arduino IDE. We will interface the Hitachi's HD44780 I2C module with ESP8266 compatible Board for interfacing the 16×2 Liquid Crystal Display We will show you how to wire the display, install the library and try sample code
The Wemos D1 Mini is one of my favorites when it comes to ESP8266 microcontroller boards. It is functionally the same as the larger NodeMCU boards. It has eleven (11) GPIO (General Purpose Input / Output) pins and one (1) analog input pin.
The SHT3x humidity sensor series combines multiple functions and various interfaces (I2C, analog voltage output) with a applications-friendly, very wide operating voltage range (2.15 to 5.5 V). The SHT3x humidity sensor is available in both large and small volumes. More information at sensiron. The sensor is an I2C device so uses D1 and D2.
When a circuit has to be controlled (turned on and off) by an independent low-power signal for example the digital I/O pin of a microcontroller. From the technical specifications table you see that a coil voltage of 5V can switch a maximum voltage of 250 V AC. ESP8266 WeMos D1 Mini: 5V; To control the relay module we can use a 3.3V digital
WeMos D1 mini esp8266 oled display sh1106 ssd1306 breadboard photo. For ESP32 and esp8266 is more simple, because the work at 3.3v. So no need of converter. For example: #include // Core graphics library #include // Hardware-specific library #include {"payload":{"allShortcutsEnabled":false,"fileTree":{"examples/02.Special/Wire/I2C_Scanner":{"items":[{"name":"I2C_Scanner.ino","path":"examples/02.Special/Wire/I2C .
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    • wemos d1 mini examples