[IC] : SX1276
[Frequency] : 900~931MHz
[Power] : 20dBm
[Distance] : 5.0km
[Interface] : SPI
[Weight] : 2.3±0.1g
[Introduction] : E19-915M20S is based on original imported RFIC SX1276 from SEMTECH, adopts LoRa spread spectrum technology. Which means the transmitting distance is much longer than before, besides the power density is more concentrated and anti-interference performance is better.
| RF Parameter | Value | Remark |
| Working frequency | 900~931 MHz | Default: 915MHz (32MHz oscillator) |
| Transmitting power | 20 dBm | Max. Power (100mW) |
| Receiving sensitivity | -147 dBm | Air data rate: 0.3kbps |
| Air data rate | 0.018k~37.5kbps | Default: 0.3kbps |
| Test distance | 5000m | In open and clear air, with maximum power, 5dBi antenna gain, height of 2m, air data rate: 0.3kbps |
| Hardware Parameter | Value | Remark |
Size | 17.6 * 25.2 mm | |
Antenna type | Stamp hole | |
Communication interface | SPI | |
Package | SMD | |
| Electronic parameter | Min. | Typ. | Max. | Unit | Condition |
| Power supply | 1.8 | 3.3 | 3.6 | V | |
| Communication level | 1.8 | 3.3 | 3.6 | V | |
| Transmitting current | 100 | 110 | 120 | mA | 20dBm（100mW） |
| Receiving current | 13 | 14 | 15 | mA | |
| Sleep current | 0.5 | 1.0 | 2.5 | μA | |
| Operating temperature | -40 | 20 | +85 | ℃ | |
| Operating humidity | 10 | 60 | 90 | % | |
| Storage temperature | -40 | 20 | +125 | ℃ |
| Pin No | Pin item | Pin direction | Pin application |
| 1 | GND | Input | Ground electrode, connected to the power reference ground. |
| 2 | DIO5 | Input /Output | Configurable IO interface(See more details in SX1278 data sheet |
| 3 | DIO4 | Input /Output | Configurable IO interface(See more details in SX1278 data sheet |
| 4 | DIO3 | Input /Output | Configurable IO interface(See more details in SX1278 data sheet |
| 5 | DIO2 | Input /Output | Configurable IO interface(See more details in SX1278 data sheet |
| 6 | DIO1 | Input /Output | Configurable IO interface(See more details in SX1278 data sheet |
| 7 | DIO0 | Input /Output | Configurable IO interface(See more details in SX1278 data sheet |
| 8 | RST | Input | Reset |
| 9 | NC | - | Not connect |
| 10 | GND | Input | Ground electrode, connected to the power reference ground. |
| 11 | VCC | Input | Power supply 1.8V-3.6V DC. 3.3V and external ceramic filter capacitor are recommended.） |
| 12 | SCK | Input | SPI clock |
| 13 | MISO | Output | SPI clock |
| 14 | MOSI | Input | SPI clock |
| 15 | NSS | Input | Chip select |
| 16 | TXEN | Input | Radio frequency switch control, make sure the TXEN pinis in high level, RXEN pin is in low level when transmitting. |
| 17 | RXEN | Input | Radio frequency switch control, make sure the TXEN pinis in high level, RXEN pin is in low level when transmitting. |
| 18 | GND | - | Ground electrode, connected to the power reference ground. |
| 19 | GND | - | Ground electrode, connected to the power reference ground. |
| 20 | ANT | Output | Antenna |
| 21 | GND | - | Ground electrode, connected to the power reference ground. |
| Order online |
| 【eBay】：https://www.ebay.com/usr/cdebyte |
| 【Aliexpress】：https://www.aliexpress.com/store/2798183 |
| 【Alibaba】：https://www.alibaba.com |
| For batch order/customized product |
| 【Sales hotline】：+86-28-61399028 Ext.812 |
| 【E-mail】：service@cdebyte.com |
| Technical support |
| 【Submit online】：http://www.ebyte.com/en/apple-technology.aspx |
| 【E-mail】：support@cdebyte.com |
| Model | IC | Interface | Frequency Hz | Power dBm | Distance km | Air data rate | Package | Size (mm) | Feature | Manual | Sample |
|---|---|---|---|---|---|---|---|---|---|---|---|
| E19-900M20S2 | SPI | SX1276 | 868M/915M | 20 | 5 | 0.018~37.5k | SMD | 15 * 15 | LoRa spread spectrum,super mini size | ||
| E19-433M20S2 | SPI | SX1278 | 433M | 20 | 5 | 0.018~37.5k | SMD | 15 * 15 | LoRa spread spectrum | ||
| E19-868M30S | SPI | SX1276 | 868M | 30 | 10.0 | 0.018~37.5k | SMD | 25*40 | Lora spread-spectrum | ||
| E19-915M30S | SPI | SX1276 | 915M | 30 | 10.0 | 0.018~37.5k | SMD | 25*40 | Lora spread-spectrum | ||
| E19-433M30S | SPI | SX1278 | 433M/470M | 30 | 10.0 | 0.018~37.5k | SMD | 25*37 | Lora spread-spectrum | ||
| E19-433M20SC | SPI | SX1278 | 433M | 20 | 5.0 | 0.018~37.5k | SMD | 17.6*25.2 | Lora spread-spectrum | ||
| E19-868M20S | SPI | SX1276 | 868M | 20 | 5.0 | 0.018~37.5k | SMD | 17.6*25.2 | Lora spread-spectrum | ||
| E19-915M20S | SPI | SX1276 | 915M | 20 | 5.0 | 0.018~37.5k | SMD | 17.6*25.2 | Lora spread-spectrum |
