Gsmneo -

| GSMNeo Pin | Connect to | |------------|-------------| | VCC | 3.8V–4.2V (peak current up to 2A) | | GND | Common ground with microcontroller | | TXD | Microcontroller RX (use level shifter if 5V logic) | | RXD | Microcontroller TX (level shift) | | PWR_KEY | Pull low for 1–2 seconds to power on |

AT+HTTPINIT AT+HTTPPARA="URL","http://your-server.com/track?id=123&lat=40.71&lon=-74.00" AT+HTTPACTION=0 gsmneo

Pair GSMNeo with a GPS module. Every 5 minutes, send location via HTTP POST: | GSMNeo Pin | Connect to | |------------|-------------|