E73-2G4M04S1D Ebyte FCC/CE/RoHs Low Power Small Wireless Nordic BLE 4.2 nRF51822 Beacon Module
[IC]：nRF51822
[Frequency]：2.379~2.496GHz
[Protocol]：BLE 4.2
[Distance]：0.1km
[Interface]：I/O
[Weight]：1.9±0.1g
[Introduction]：E73-2G4M04S1D is a small Bluetooth module that features ultra low power consumption with dual antenna PCB and IPX antenna of high performance. Based on originally imported IC nRF51822 from NORDIC,the module supports BLE 4.2 protocol.
| No. | Pin item | Pin direction | Application |
|---|---|---|---|
| 1 | P0.21 | Input/Output | MCU GPIO |
| 2 | P0.22 | Input/Output | MCU GPIO |
| 3 | P0.23 | Input/Output | MCU GPIO |
| 4 | P0.24 | Input/Output | MCU GPIO |
| 5 | P0.25 | Input/Output | MCU GPIO |
| 6 | P0.28 | Input/Output | MCU GPIO |
| 7 | P0.29 | Input/Output | MCU GPIO |
| 8 | P0.30 | Input/Output | MCU GPIO |
| 9 | P0.00 | Input/Output | MCU GPIO |
| 10 | P0.01 | Input/Output | MCU GPIO |
| 11 | VCC | - | Power supply 2.1 ~ 3.6V DC （ Note: The voltage higher 3.6V is forbidden ） |
| 12 | GND | - | Ground electrode, connect to power reference ground |
| 13 | GND | - | Ground electrode, connect to power reference ground |
| 14 | P0.02 | - | 0.9 V Digital power supply decoupling controller |
| 15 | P0.03 | Input/Output | MCU GPIO |
| 16 | P0.04 | Input/Output | MCU GPIO |
| 17 | P0.05 | Input/Output | MCU GPIO |
| 18 | P0.06 | Input/Output | MCU GPIO |
| 19 | P0.07 | Input/Output | MCU GPIO |
| 20 | P0.08 | Input/Output | MCU GPIO |
| 21 | P0.09 | Input/Output | MCU GPIO |
| 22 | P0.10 | Input/Output | MCU GPIO |
| 23 | P0.11 | Input/Output | MCU GPIO |
| 24 | GND | Input/Output | MCU GPIO |
| 25 | GND | Input/Output | MCU GPIO |
| 26 | P0.12 | Input/Output | MCU GPIO |
| 27 | P0.13 | Input/Output | MCU GPIO |
| 28 | P0.14 | Input/Output | MCU GPIO |
| 29 | P0.15 | Input/Output | MCU GPIO |
| 30 | P0.16 | Input/Output | MCU GPIO |
| 31 | SWDIO/nRESET | Input | Serial line debugging and programming debugging / MCU reset, low level enable |
| 32 | SWDCLK | Input | Serial Line Debugging / Clock Input Debugging and Programming |
| 33 | P0.17 | Input/Output | MCU GPIO |
| 34 | P0.18 | Input/Output | MCU GPIO |
| 35 | P0.19 | Input/Output | MCU GPIO |
| 36 | P0.20 | Input/Output | MCU GPIO |