Weather station based on esp8266 and BME280 sensor. Upload to thingspeak.com every 1 minutes. Read data from sensor every 3 seconds and post them on serial and oled screen. Every 3 minutes i get data from openweathermaps.org.
RFID Attendance System based on Arduino Uno, ESP8266 - 12F, MFRC525, and RTC DS1302