The main problem is, that the module does not get any supply voltage. You connected the Unos 5V to the OLED boards 5V. But this pin doesn't seem to be connected on the OLED shield. It is marked with 5V there, because this board is a shield to be stacked onto the Wemos D1. When you do this, you have 5V on this pin from the Wemos and can access In this example we connect a PIR module to a Wemos Mini. A passive infrared sensor (PIR sensor) is an electronic sensor that measures infrared (IR) light radiating from objects in its field of view. This is from Wikipedia and sums up the operation of a PIR nicely. An individual PIR sensor detects changes in the amount of infrared radiation Step 3: Setup 2. The desired Thingspeak field number must be entered to Start field (1-8). This field is important if multiple devices are sending datas to the same thingspeak channel. For example: 2 WiFi loggers are working simultaneously, each has 3 temperature sensors. Wemos mini DS18B20 temperature sensor example. The DS18B20 is a temperature sensor that can be used in various simple projects. This part uses the 1 wire (I2C) bus and you can connect multiple sensors up to your Arduino. The part is also relatively low cost and only requires an additional 4k7 pull up resistor. In the example below we shall make CH340 Driver. Python. esptool (for flash esp8266&esp32 firmware.) pip install esptool. Micropython firmware (esp32) Vay Tiền Trả Góp Theo Tháng Chỉ Cần Cmnd.

wemos d1 mini i2c example