Overview
1. This is a Raspberry Pi LoRa HAT based on SX1268, covers 470MHz frequency band. It allows data transmission up to 5km through serial port.
2. By utilizing the new generation LoRa spread spectrum modulation technology, the communication distance of the module is as long as 5km, also supports auto repeating to transmit longer. Other features include Wake on Radio, wireless config, carrier sensing, communication key, and so on.
3. Comparing with normal LoRa modules, the SX1268 LoRa HAT achieves longer communication distance, higher rate, lower consumption, better safety and anti-interference. It is suitable for various applications such as industrial control, smart home, data collection, etc.
Features
1. Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards
2. Onboard CP2102 USB TO UART converter, for serial debugging
3. Brings the UART control interface, for connecting host boards like Arduino/STM32
4. 4x LED indicators, easy to check the module status
5. LoRa spread spectrum modulation technology, up to 84 available signal channel, longer communication distance, more robust to interference
6. Auto multi-level repeating, suit for ultra long range communication, allows multi network on the same region
7. Low power consumption features like deep sleeping and Wake on Radio, ideal for battery-powered applications
8. Customizable communication key which won't be retrieved, greatly improves the security of user data
9. Support LBT, monitoring the signal channel noise before transmitting, greatly improves the success ratio under extreme environment
10. Support RSSI signal intensity indicating, for evaluating signal quality, tuning the network
11. Support wireless parameter configuration, by sending wireless command/data packet, remotely configure or retrieve the module parameter
12. Support fixed-point transmission, broadcast, signal channel monitor
13. Come with development resources and manual (examples for Raspberry Pi/STM32)
What is on Board
1. SX1268 LoRa module
2. 74HC125V: voltage level translator
3. CP2102: USB TO UART converter
4. Raspberry Pi GPIO connector: for connecting with Raspberry Pi
5. USB TO UART port
6. UART header: for connecting host boards like STM32/Arduino
7. SMA antenna connector
8. IPEX antenna connector
9. Indicators:
- RXD/TXD: UART RX/TX indicator
- AUX: auxiliary indicator
- PWR: power indicator
10. UART selection jumpers
- A: Control the LoRa module through USB TO UART
- B: Control the LoRa module through Raspberry Pi
- C: Access Raspberry Pi through USB TO UART
11. LoRa mode selection jumpers
- Short M0, short M1: Transmission mode
- Short M0, open M1: Configuration mode
- Open M0, short M1: WOR mode
- Open M0, open M1: deep sleep mode
Specification
1. RF module: SX1268
2. Frequency band: 410.125 ~ 493.125MHz
3. Radio rate: 0.3kbps ~ 62.5kbps (programmable)
4. Transmit power: 22.0dBm (10/13/17/22dBm programmable)
5. Receive sensitivity: -147dBm (radio rate 2.4kbps)
6. Power consumption:
- Transmit current: 110mA (transient consumption)
- Receive current: 11mA
- Sleep current: 2uA (LoRa module software shutoff)
7. Communication interface: UART (TTL level)
8. Baudrate: 1200bps ~ 115200bps (9600bps by default)
9. Packet length: 240 Byte (32/64/128/240 Byte programmable)
10. Cache: 1000 Byte
11. Experimental range: 5km (condition: cloudless and wild, altitude 2.5m, antenna gain 5dBi, radio rate 2.4kbps)
12. Power supply: 5V
13. Logic level: 3.3V/5V
14. Operating temperature: -40~85 degree C
15. Applications: Smart home, industrial sensors, building automation, smart meters, and more other IoT applications
16. Dimensions: 7cm x 12cm x 2cm
17. Weight: 69g
18. Packing List:
- SX1268 470M LoRa HAT x1
- USB type A plug to micro plug cable x1
- 470MHz antenna x1
