What Is USSD? Unstructured Supplementary Service Data
USSD allows you to send small data packages without a data connection and without incurring SMS costs. It’s typically used for sending short requests and commands, and these messages can only contain a maximum of 182 characters (16 bits of data). USSD doesn’t support Multimedia Messages (MMS) like audio, video, or images.
Arduino vs Raspberry Pi: What's the best hardware for IoT prototyping?
Choosing the right hardware is one of the key questions for building any IoT solution. This decision directly impacts important factors like the functionality, security and scalability of your IoT project. For prototyping and piloting purposes, Raspberry Pi models and Arduino boards are the most common choices, but which one is the best for your solution? You’re about to find out.
What Is User Datagram Protocol (UDP)?
When higher-level protocols need to transmit data quickly, they rely on UDP to package and distribute that data over the Internet Protocol (IP). (If you wish to know more about protocols and IoT check out our Comprehensive Guide to IoT Protocols.)