SMS and joystick: what they have in common

1. Step 1. SMS — uses — Cellular network. A cellular network service.
2. Step 2. Cellular network — is used in — Smart meter. Data transmission.
3. Step 3. Smart meter — has part — Microcontroller. A microcontroller does the metering.
4. Step 4. Microcontroller — is part of — Gamepad. A microcontroller polls the buttons.
5. Step 5. Gamepad — evolved from — Joystick. A game controller.

Open Evothings