E78-400M22S1C RF transceiver module
[IC]：ASR6601
[Frequency]：410~490MHz
[Power]：21dBm
[Distance]：5.5km
[Size]：26*16*2.8mm
[Product weight]：1.9g±1g
[Introduction]：E78 series are RF transceiver module of various frequency bands designed and manufactured by Chengdu Ebyte, with long communication distance and extremely low power mode current consumption. It is a small-sized SMD type(pin pitch 1. lmm).
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| Pin No. | Item | Direction | Description |
|---|---|---|---|
| 1 | GND | - | Ground wire, connected to the power reference ground |
| 2 | GND | - | Ground wire, connected to the power reference ground |
| 3 | GND | - | Ground wire, connected to the power reference ground |
| 4 | NC | - | Reserved |
| 5 | GPIO01 | Input/Output | MCU GPIO |
| 6 | GPIO00 | Input/Output | MCU GPIO |
| 7 | GPIO03 | Input/Output | MCU GPIO |
| 8 | GPIO02 | Input/Output | MCU GPIO |
| 9 | GPIO06 | Input/Output | MCU GPIO |
| 10 | GPIO07 | Input/Output | MCU GPIO |
| 11 | NRST | Input | External reset pin |
| 12 | GPIO14 | Input/Output | MCU GPIO |
| 13 | GPIO15 | Input/Output | MCU GPIO |
| 14 | GPIO23 | Input/Output | MCU GPIO |
| 15 | GPIO25 | Input/Output | MCU GPIO |
| 16 | GPIO24 | Input/Output | MCU GPIO |
| 17 | GPIO27 | Input/Output | MCU GPIO |
| 18 | GPIO26 | Input/Output | MCU GPIO |
| 19 | GPIO29 | Input/Output | MCU GPIO |
| 20 | GND | - | Ground wire, connected to the power reference ground |
| 21 | GPIO28 | Input/Output | MCU GPIO |
| 22 | GPIO30 | Input/Output | MCU GPIO |
| 23 | GPIO31 | Input/Output | MCU GPIO |
| 24 | GPIO62 | Input/Output | MCU GPIO |
| 25 | UART0_RX | Input | MCU GPIO |
| 26 | UART0_TX | Output | MCU GPIO |
| 27 | GPIO60 | Input/Output | MCU GPIO |
| 28 | GPIO58 | Input/Output | MCU GPIO |
| 29 | GPIO13 | Input/Output | MCU GPIO |
| 30 | GPIO12 | Input/Output | MCU GPIO |
| 31 | VCC | - | Power supply, range 2.5V ~ 3.7V (recommended to add external ceramic filter capacitor) |
| 32 | GND | - | Ground wire, connected to the power reference ground |
| 33 | GND | - | Ground wire, connected to the power reference ground |
| 34 | GPIO11 | Input/Output | MCU GPIO |
| 35 | GPIO08 | Input/Output | MCU GPIO |
| 36 | GPIO05 | Input/Output | MCU GPIO |
| 37 | GPIO04 | Input/Output | MCU GPIO |
| 38 | GPIO09 | Input/Output | MCU GPIO |
| 39 | GPIO45 | Input/Output | MCU GPIO |
| 40 | GPIO44 | Input/Output | MCU GPIO |
| 41 | GPIO42 | Input/Output | MCU GPIO |
| 42 | GPIO41 | Input/Output | MCU GPIO |
| 43 | GPIO40 | Input/Output | MCU GPIO |
| 44 | GPIO37 | Input/Output | MCU GPIO |
| 45 | GPIO33 | Input/Output | MCU GPIO |
| 46 | GPIO32 | Input/Output | MCU GPIO |
| 47 | GPIO36 | Input/Output | MCU GPIO |
| 48 | GPIO35 | Input/Output | MCU GPIO |
| 49 | GPIO34 | Input/Output | MCU GPIO |
| 50 | GND- | Ground wire, connected to the power reference ground | |
| 51 | ANT | Output | Antenna interface, stamp hole (50 ohm characteristic impedance) |
| 52 | GND | - | Ground wire, connected to the power reference ground |