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E44-TTL-100 is a 100mW wireless transceiver module with LoRa spread-spectrum technology,operates at 900~931MHz (Default: 915MHz), based on original imported RFIC SX1276 fromSEMTECH,transparent transmission is available, TTL level. The module adopts LoRa spread-spectrum technology,which means the transmitting distance is much longer than beforeules.
Features:
- Model: E44-TTL-100
- Interface: UART
- Distance: 3000m
- Frequency: 915MHz (900-931MHz)
Electrical parameter:
| 1 | IC | SX1276 | SEMTECH |
| 2 | Size | 21* 36mm | Without SMA |
| 3 | Weight | 6.7g | With SMA |
| 4 | Frequency Band | 915MHz | Frequency range : 900~931MHz, Channel: 32 |
| 5 | PCB | 4-layer | Impedance-matching, lead-free |
| 6 | Connector | 1 * 7 * 2.54mm | Plug-in |
| 7 | Supply voltage | 2.1 ~ 5.5V DC | Note: the voltage higher than 5.5V is forbidden |
| 8 | Operation Range | 3000m | Clear and open area, 20dBm, antenna gain: 5dBi,height: 2m,air date rate: 2.4kbps |
| 9 | Transmitting power | 20dBm | 4 optional level (20,17,14,10dBm) |
| 10 | Air data rate | 2.4kbps | 6 optional level (0.3,1.2,2.4,4.8,9.6,19.2kbps) |
| 11 | Standby current | 3.0uA | M1=1, M0=1 ( Mode 3 ) |
| 12 | Transmitting current | 120mA at 20dBm | The proposed power supply current is not less than 300mA |
| 13 | Receiving current | 14mA | Mode 0 or 1 |
| 14 | Communication interface | UART | 8N1,8E1,8O1,Eight kinds of UART baud Rate, from 1200 to 115200 bps(Default: 9600) |
| 15 | Driving mode | UART | Can be configured to push-pull/high pull, open-drain |
| 16 | Transmitting length | 512 bytes buffer | 58 bytes per package |
| 17 | Receiving length | 512 bytes buffer | 58 bytes per package |
| 18 | Address | 65536 | Easy for network, broadcast and fixed transmission |
| 19 | WOR | Available | Minimum average power consumption is about 30uA (applicable for battery powered applications) |
| 20 | RSSI | No support | Built-in intelligent processing |
| 21 | Sensitivity | -138dbm at 0.3kbps | Sensitivity has nothing to with baud rate or delay time |
| 22 | Antenna type | SMA-K | 50Ω impedance |
| 23 | Operating temperature | -40 ~ +85℃ | Industrial-grade |
| 24 | Operating temperature | 10% ~ 90% | No condensation |
| 25 | Storage temperature | -40 ~ +125℃ | Industrial-grade |
Operating modes:
| Mode(0-3) | M1 | M0 | Mode introduction | Remark |
| Mode 0 Normal | 0 | 0 | Transparent transmission is on | The receiver must work in mode 0 or mode 1 |
| Mode 1 Wake-up | 0 | 1 | act as transmitter,can be used to wake up the module works in mode 2 | The receiver can work in mode 0, mode 1 or mode 2. |
| Mode 2 Power-saving | 1 | 0 | act as receiver,can be awakened by the module works in mode 1 | transmitting is not allowed in this mode |
| Mode 3 Sleep | 1 | 1 | Parameter setting |
E44-TTL-100 LoRa 915MHz SX1276 SX1278 Wireless Module Long Range UART 915 Mhz Transmitter and Receiver
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