[IC]: SX1276
[Frequency]:862~931MHz
[Power]: 20dBm
[Distance]: 5km
[Size]:15*15mm
[Antenna]: Stamp hole
[Feature]:LoRa spread spectrum,super mini size
[Introduction]:E19-900M20S2 is an ultra-small 915MHz SMD LoRaTM wireless module independently developed based on the SX1276 produced by Semtech in the United States. It uses an industrial-grade high-precision 32MHz crystal oscillator.
The main parameters | Value | Remark |
Working frequency | 862~931 MHz | Support ISM frequency band |
Max TX power | 20 dBm | - |
Receiving sensitivity | -147 dBm | The sensitivity test condition is airspeed 0.3kbps,coding rate 4/5,spreading factor 12 |
Air data rate | 0.018k~37.5kbps(LoRa) 1.2k~300kbps(GFSK) | User programmable customization |
Reference distance | 5000米 | Clear and open, antenna gain 5dBi, antenna height 2.5 meters,air rate 1kbps |
The main parameters | Value | Remark |
Dimensions | 15 * 15 mm | |
Antenna interface | Stamp hole | Equivalent impedance is about 50Ω |
Communication Interface | SPI | 0-10Mbps |
Packaging method | SMD |
The main parameters | Min. | Typical | Max. | Unit | Remark |
Working voltage | 2.3 | 3.3 | 3.6 | V | ≥3.3V can guarantee output power |
Communication level | - | 3.3 | - | V | Using 5V TTL is risky to burn |
Emission current | - | 135 | - | mA | Instantaneous power consumption |
Receiving current | - | 12.6 | - | mA | - |
Sleep current | - | 2.0 | - | μA | Software shutdow |
Working temperature | -40 | 20 | +85 | ℃ | - |