[IC]:SX1278
[Frequency]:410~525MHz
[Power]:10~20dBm
[Distance]:3km
[Interface]:UART
[Weight]:2.1±0.1g
[Introduction]:E32 series are UART wireless modules based on SX1276/SX1278 RF IC of SEMTECH with transparent transmission and LoRa spread spectrum technology. The modules 3.3V TTL output. SX1276/SX1278 support LoRa TM technology, The LoRa TM DSSS (direct sequence spread spectrum) technology features long range and strong anti-interference as well as strong data confidentiality. SX1276/SX1278 are considered as a milestone in terms of low speed data communication.
Pin No. | Pin Item | Pin Direction | Pin Application |
---|---|---|---|
1 | GND | - | Ground |
2 | GND | - | Ground |
3 | GND | - | Ground |
4 | GND | - | Ground |
5 | M0 | Input(weak pull-up) | Work with M1 & decide the four operating modes;Floating is not allowed, can be ground. |
6 | M1 | Input(weak pull-up) | Work with M0 & decide the four operating modes;Floating is not allowed, can be ground. |
7 | RXD | Input | TTL UART inputs, connects to external TXD output pin;Can be configured as open-drain or pull-up input. |
8 | TXD | Output | TTL UART outputs, connects to external RXD input pinCan be configured as open-drain or push-pull output. |
9 | AUX | Output | To wake up the external MCU, during the procedure of self-check initialization, the pin outputs low level; Can be configured as open-drain output or push-pull output; Floating is allowed. |
10 | VCC | - | Voltage positive reference of module; Power supply 2.3V ~ 5.2V DC |
11 | GND | - | Ground |
12 | NC | - | - |
13 | GND | - | Ground |
14 | NC | - | - |
15 | NC | - | - |
16 | NC | - | - |
17 | NC | - | - |
18 | NC | - | - |
19 | GND | - | Ground |
20 | GND | - | Ground |
21 | ANT | - | Antenna |
22 | GND | - | Ground |