[Chip solution]:SX1262
[Frequency]:850 ~ 930MHz
[Transmitter power]:33dbm
[Communication distance]: 16km
[Size]:24*38.5mm
[Product weight]:5.1g±0.1g
[Introduction]:E22-900M33S is independently developed based on the new generation LoRa radio frequency chip SX1262 produced by Semtech in the United States. It has a maximum power of 2W and is suitable for 868/915MHz patch-type LoRa wireless modules. It uses an industrial-grade high-precision 32MHz crystal oscillator. Compared with the previous generation LoRa transceiver, the anti-interference performance and communication distance have been improved, further widening the gap with products with FSK and GFSK modulation methods. This product can cover an ultra-wide applicable frequency range of 850 to 930MHz and is backward compatible with SX1278 and SX1276. Since this module is a pure radio frequency transceiver module, it needs to use an MCU driver or a dedicated SPI debugging tool.
| No. | Pin | Pin Direction | Remarks |
| 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 | GND | - | Ground wire, connected to the power reference ground |
| 5 | GND | - | Ground wire, connected to the power reference ground |
| 6 | RXEN | input | RF switch receiving control pin, connected to external microcontroller IO, high level active |
| 7 | TXEN | input | RF switch emission control pin, connected to external microcontroller IO or DIO2, active at high level |
| 8 | DIO2 | input /Output | Configurable general-purpose IO port (see SX1262 manual for details) |
| 9 | VCC | - | Power supply, range 3.3V~5.5V (it is recommended to add external ceramic filter capacitors) |
| 10 | VCC | - | Power supply, range 3.3V~5.5V (it is recommended to add external ceramic filter capacitors) |
| 11 | GND | - | Ground wire, connected to the power reference ground |
| 12 | GND | - | Ground wire, connected to the power reference ground |
| 13 | DIO1 | input /Output | Configurable general-purpose IO port (see SX1262 manual for details) |
| 14 | BUSY | Output | Used for status indication (see SX1262 manual for details) |
| 15 | NRST | input | Chip reset trigger input pin, active low level |
| 16 | MISO | Output | SPI data output pin |
| 17 | MOSI | input | SPI data input pin |
| 18 | SCK | input | SPI clock input pin |
| 19 | NSS | input | Module chip select pin, used to start an SPI communication |
| 20 | GND | - | Ground wire, connected to the power reference ground |
| 21 | ANT | - | Antenna interface, stamp hole (50 ohm characteristic impedance) |
| 22 | GND | - | Ground wire, connected to the power reference ground |