D1 Mini Shields » HR8833 Motor Shield HR8833 Motor Shield¶ I2C dual motor driver shield based on HR8833. Features¶ I2C interface; Power supply voltage: VM=3 As a perfect example, take a look at this stupendously simple Internet-connected motion detector that [Eric William] has come up with. With just a Wemos D1 Mini, a standard PIR sensor, and some This will add support for the Wemos D1 Mini to Arduino IDE. Open Boards Manager from Tools > Board menu and install esp8266 Core platform version 2.5.2. Select Board: "LOLIN (WEMOS) D1 R2 & mini". Set 1M SPIFFS -- this project uses SPIFFS for saving and reading configuration settings. Sorted by: 2. A) Throw out the Arduino, and just connect your display and sensor to the WeMos directly. B) Connect the Arduino to the WeMos using UART, SPI or I²C and send the temperature value to the WeMos. Keep in mind that the Arduino UNO is a 5V device, and the maximum voltage for the ESP8266 is 3.3V, so you'll need a level shifter. Wemos mini bmp180 sensor example. This bmp180 from Bosch is the best low-cost sensing solution for measuring barometric pressure and temperature. The sensor is soldered onto a PCB with a 3.3V regulator, I2C level shifter and pull-up resistors on the I2C pins. The BMP180 replaces the BMP085. bqEL6.

wemos d1 mini i2c example