SIM808 BRD1
SIM808 Board Series Details
SIM808 Dev Board
Board specification
| No. | Description | No. | Description |
|---|---|---|---|
| 1 | sim card insert direction | 11 | IPX connector |
| 2 | battery connector | 12 | 5V power and serial interface |
| 3 | sim card protect ic | 13 | TVS over voltage protection |
| 4 | sim card slot | 14 | bluetooth connector |
| 5 | other control pins | 15 | LDO regulator |
| 6 | audio speaker and mic | 16 | LED status |
| 7 | usb connector for upgrading only | 17 | GPS power supply circuits |
| 8 | Titanium capacitor | 18 | GPS antenna connector |
| 9 | TTL 5V/3V3 switch | ||
| 10 | TTL macthing circuits |
Simple wiring and serial debugging
Only need 4 wires
send commands via serial monitor on PC
Bluetooth Firmware
- please prepare the USB socket and solder it
- Install driver and then you can flash the firmware
- Default firmware support TTS audio to speech, both firmware are provided