sim7600 datasheets and other resources

datasheets/sim7600/README.md

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+SIM7600 Documents
+===
+
+Mostly retrieved from [Waveshare's SIM7600 Wiki](http://www.waveshare.com/wiki/SIM7600A-H_4G_HAT).
+
+| |
+|---|
+| ![SIM7600X 4G HAT Pinout](SIM7600A-H-4G-HAT-details-intro.jpg) |
+
+
+
+| | |
+|---|---|
+| 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 |
+
+| |
+|---|
+| ![SIM7600X 4G Hat Pinout Description](SIM7600A-H-4G-HAT-details-inter.jpg) |