Temperature, Humidity, Moisture Sensor with OLED

thingiverse

A compact sensor system measures temperature, humidity, and soil moisture, displaying results on a small OLED screen. Data is also logged online at Thingspeak.com for easy graphing. Required components include: DHT11 temperature/humidity sensor Capacitive soil moisture sensor Wemos D1 mini microcontroller 0.96-inch SPI-enabled OLED display Code has been provided; users must create an account on Thingspeak.com to access cloud data, though the system functions independently as a standalone display. To set up online logging, create a Thingspeak channel and add temperature to field 1, humidity to field 2, and moisture to field 3. Save the channel and copy the write API key for inclusion in the code. Connections: DHT11 data pin connected to D2 Soil moisture sensor data pin connected to A0 OLED MOSI connected to D7 OLED CLK connected to D5 OLED DC connected to D4 OLED CS connected to D8 OLED reset connected to D0 Non-experts in coding may find the provided code useful, though improvements are possible; for example, progress bar updates could be optimized by streamlining repetitive commands.