- RFID: RFIDRW-E-TTL (Priority1design)
- Temperature and Humidity: DHT22
- Weight (Amplifier and Load Cell): HX711 and 3kg Load Cell
- RTC: DS3231
- GSM: SIM900 GPRS Shield
- Micro SD Card: B026 POD
- RFID: Created with SoftwareSerial
- Temperature and Humidity: SimpleDHT
- Weight (Amplifier and Load Cell): Queuetue_HX711_Library (modified)
- RTC: DS3231
- GSM: Created with SoftwareSerial
- Micro SD Card: FAT16
- Java application using Spark web framework to deal with HTTP requests
- Twilio API is included to receive SMS messages
- ngrok program securely tunnels between localhost port 4567 and a secure URL
- Twilio Console has an SMS webhook address in form of a HTTP POST request set to the ngrok secure URL
- Download credentials file and save in the assets folder