| 1 |
SIM7600A-H |
| 2 |
CP2102 USB to UART converter |
| 3 |
NAU8810 audio decoder |
| 4 |
TXS0108EPWR voltage translator translates 3.3V/5V into 1.8V |
| 5 |
MP2128DT power chip |
| 6 |
MP1482 power chip |
| 7 |
Raspberry Pi GPIO header |
| 8 |
SIM7600 control interface for connecting with host boards like Arduino/STM32 |
| 9 |
SIM card slot supports 1.8V/3V SIM card |
| 10 |
3.5mm earphone/mic jack |
| 11 |
USB interface for testing AT Commands, getting GPS positioning data, etc. |
| 12 |
USB to UART interface for serial debugging, or login to Raspberry Pi |
| 13 |
MAIN antenna connector |
| 14 |
AUX antenna connector |
| 15 |
GNSS antenna connector |
| 16 |
Power switch |
| 17 |
Network status indicator |
| 18 |
Power indicator |
| 19 |
Operating voltage selection jumper, configured via 0Ω resistor jumper, VCCIO - 3.3V: set operating voltage as 3.3V, VCCIO - 5V: set operating voltage as 5V |
| 20 |
UART selection jumper, A: access Raspberry Pi via USB to UART, B: control the SIM7600 by Raspberry Pi, C: control the SIM7600 via USB to UART |
| 21 |
PWR configuration jumper, PWR - 3V3: auto startup on power-up (default), PWR - D6: startup/shutdown by the Raspberry Pi D6 pin, Flight mode configuration jumper, NC by default, no flight mode control pin, Flight - D4: flight mode is controlled by the Raspberry Pi D4 pin |
| 22 |
USB connector solder pads |
| 23 |
BOOT forced programming solder pads |
