The ESP8266 is low cost, low power, system on a chip. It can be connected directly with a WIFI modem or through Bluetooth. It has several pins that can be configured for both analog and digital inputs. It is perfect for bringing sensor data in from the physical world and uploading the data to the Internet. At Expert Coders we are experts at programming the ESP8266. We can also build your cloud server to display your information over the Internet. If you prefer a desktop app to view your data, we can do that too. Although the ESP 8266 chips are great we do prefer the newer more powerful, but slightly more expensive ESP32. They are more secure and only a couple of bucks more in cost.