| Power Voltage | 4.5-5.5 VDC |
| Input Voltage VH | 3-5.5 V |
| Input Voltage VL | -0.3-0.5 V |
| Baud Rate | 9600 bps |
| Indicators | PWR |
| Power Supply | Compatible with Arduino |
| Communication Protocol | UART |
| RoSH | Yes |
| Size | 55.88mm X 54.1mm X 1.6mm |
| Micro SD Interface | Yes |
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