EBYTE OEM/ODM Factory wholesale high quality Low energy consumption Transparent transmission LoRa module
[IC]：SX1276
[Frequency]：862～930MHz
[Power]：20dBm
[Distance]：5.5km
[Size]：16*26mm
[Introduction]：E32-900T20S is a wireless serial port module (UART) based on SEMTECH's SX1276 RF chip. It has multiple transmission modes, working in the 862MHz~931MHz, LoRa spread spectrum technology, TTL output.
| 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) | With M1, the four working modes of the module can be determined (it cannot be suspended, and it can be grounded if it is not used). |
| 6 | M1 | Input(weak pull-up) | With M0, the four working modes of the module can be determined (it cannot be suspended, and it can be grounded if it is not |
| 7 | RXD | Input | TTL UART input ,Connect to external TXD output pins; Can be configured as drain open circuit or pull up input, see parameter Settings |
| 8 | TXD | Output | TTL UART output, Connect to external RXD input pin; Can be configured as drain open circuit or push - pull output, see parameter Settings |
| 9 | AUX | Output | Used to indicate the working status of the module; The user wakes up the external MCU and outputs low level during self-test initialization; Can be configured as drain open output, or push-pull output, see parameter Settings (can be suspended) |
| 10 | VCC | - | Positive reference of module power supply, voltage range: 2.3v ~ 5.2v DC |
| 11 | GND | - | Ground |
| 12 | NC | - | - |
| 13 | GND | - | Ground |
| 14 | NC | - | - |
| 15 | NC | - | - |
| 16 | NRST | - | - |
| 17 | NC | - | - |
| 18 | NC | - | - |
| 19 | GND | - | Ground |
| 20 | GND | - | Ground |
| 21 | ANT | - | Antenna |
| 22 | GND | - | Ground |