E73-2G4M08S1EX Ebyte OEM/ODM cheap Small size low power consumption micro BLE wireless module
[IC]：nRF52833
[Frequency]：2.360~2.500GHz
[Protocol]：BLE5.1/Zigbee
[Distance]：120m
[Product weight]：1.3g±0.1g
[Size]：13.0*18.0mm
[Introduction]：E73-2G4M08S1EX are wireless BLE modules designed by Chengdu Ebyte which feature small size, low power consumption. It adopt the originally imported RFIC nRF52833 of NORDIC, supporting ble 5.1, ble mesh, 802.15.4, Thread, Zigbee and proprietary 2.4 GHz protocols. The chip comes with a high-performance ARM CORTEX-M4 core.
Official Store
| Pin number | Pin Name | Corresponding chip pin number | Pin direction | Pin Purpose |
| 1 | NC | B19 | - | See the official chip manual for details |
| 2 | P1.10 | A20 | Universal I/O | Low frequency I/O, standard driver |
| 3 | P0.03 | B13 | Universal I/O | Analog input 1, low frequency I/O, standard drive |
| 4 | AI4 | B11 | Universal I/O | Analog input 4 |
| 5 | GND | - | - | Single ground wire, connected to the power reference ground |
| 6 | P1.13 | A16 | Universal I/O | Low frequency I/O, standard driver |
| 7 | AI0 | A12 | Universal I/O | Analog input 0, low frequency I/O, standard drive |
| 8 | AI5 | A10 | Universal I/O | Analog input 5, low frequency I/O, standard drive |
| 9 | AI7 | A8 | Universal I/O | Analog input 7, low frequency I/O, standard drive |
| 10 | AI6 | B9 | Universal I/O | Analog input 6, low frequency I/O, standard drive |
| 11 | XL1 | D2 | Universal I/O | Connecting a 32.768 kHz crystal |
| 12 | P0.26 | G1 | Universal I/O | See the official chip manual for details |
| 13 | XL2 | F2 | Universal I/O | Connecting a 32.768 kHz crystal |
| 14 | P0.06 | L1 | Universal I/O | See the official chip manual for details |
| 15 | AI3 | K2 | Universal I/O | Analog input 3 |
| 16 | P0.08 | N1 | Universal I/O | See the official chip manual for details |
| 17 | P1.09 | R1 | Universal I/O | See the official chip manual for details |
| 18 | AI2 | J1 | Universal I/O | Analog input 2 |
| 19 | VCC | - | - | power supply |
| 20 | P12 | U1 | Universal I/O | See the official chip manual for details |
| 21 | GND | - | - | Ground wire, connected to the power reference ground |
| 22 | P0.07 | M2 | Universal I/O | See the official chip manual for details |
| 23 | VDH | VDDH | - | High-voltage power supply |
| 24 | GND | - | - | Ground wire, connected to the power reference ground |
| 25 | DCH | DCCH | - | DC/DC converter output |
| 26 | RST | P0.18/RESET | Universal I/O | QSPI/CSN/external reset |
| 27 | VBS | VBUS | - | USB power supply, 5V input, for USB3.3V regulator |
| 28 | P15 | AD10 | Universal I/O | See the official chip manual for details |
| 29 | D- | D- | - | USB D- |
| 30 | P17 | AD12 | Universal I/O | See the official chip manual for details |
| 31 | D+ | D+ | - | USB D+ |
| 32 | P0.20 | AD16 | Universal I/O | See the official chip manual for details |
| 33 | P0.13 | AD8 | Universal I/O | See the official chip manual for details |
| 34 | P0.22 | AD18 | Universal I/O | QSPI |
| 35 | P0.24 | AD20 | Universal I/O | |
| 36 | P1.00 | AD22 | Universal I/O | See the official chip manual for details |
| 37 | SWD | SWEDING | - | Serial debug programming port data |
| 38 | P1.02 | P1.02 | Universal I/O | See the official chip manual for details |
| 39 | SWC | AC24 | - | Serial debug programming port clock |
| 40 | P1.04 | U24 | Universal I/O | Low frequency I/O, standard driver |
| 41 | NF1 | L24 | Universal I/O | NFC input |
| 42 | P1.06 | R24 | Universal I/O | Low frequency I/O, standard driver |
| 43 | NF2 | J24 | Universal I/O | NFC input |