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The Grove LoRa-E5 is a superior choice for IoT device development, testing, and long-distance, ultra-low power consumption IoT scenarios like smart agriculture, smart office, and smart industry. It is designed with industrial standards with a wide working temperature at -40℃ ~ 85℃, high sensitivity between -116.5 dBm and -136 dBm, and power output between 10 dBm and 22 dBm.
Grove - LoRa-E5 can endow your development boards' strong features of ultra-long transmitting range, great performance, and high efficiency by easiliy plug and play with Grove connector on board. By connecting Grove - LoRa-E5 to your development boards, your devices is able to communicate with and control LoRa-E5 conveniently by AT command through UART connection.
1. Factory AT Firmware
LoRa-E5 series has a built-in AT command firmware, which supports LoRaWAN Class A/B/C protocol and a wide frequency plan: EU868/US915/AU915/AS923/KR920/IN865. With this AT command firmware, users can easily and quickly build their prototype or application.
The AT command firmware contains a bootloader for DFU and the AT application. The "PB13/SPI_SCK/BOOT" pin is used to control LoRa-E5 to stay in the bootloader or jump to the AT application. When PB13 is HIGH, the module will jump to AT application after reset, with a default baud rate of 9600. When PB13 is LOW (press the "Boot" button on LoRa-E5 Dev Board or LoRa-E5 mini), the module will stay in the bootloader, and keep transmitting "C" character every 1S at baud rate 115200.
Attention
1. Factory AT Firmware is programmed with RDP(Read Protection) Level 1, developers need to remove RDP first with STM32Cube Programmer. Note that regression RDP to level 0 will cause a flash memory mass to erase and the Factory AT Firmware can't be restored again.
2. The "PB13/SPI_SCK/BOOT" pin on the LoRa-E5 module is just a normal GPIO, not the "BOOT0" pin of the MCU. This "PB13/SPI_SCK/BOOT" pin is used in the bootloader of the Factory AT firmware, to decide to jump to APP or stay in bootloader(for DFU). The real "BOOT0" pin doesn't pinout to the module, so developers need to be careful when developing low-power applications.
2. Clock Configuration
2.1 HSE
32MHz TCXO
TCXO power supply: PB0-VDD_TCXO
2.2 LSE
32.768KHz crystal oscillator
3. RF Switch
LoRa-E5 module ONLY transmits through RFO_HP:
Receive: PA4=1, PA5=0
Transmit(high output power, SMPS mode): PA4=0, PA5=1
| General Parameters | |
|---|---|
| Voltage Supply: | 3.3V / 5V |
| Power Output: | Up to +20 dBm at 3.3V |
| Working Frequency | 868MHz / 915MHz |
| Protocol | LoRaWAN |
| Sensitivity | -116.5dBm ~ -136dBm |
| Modulation | LoRa, (G)FSK, (G)MSK and BPSK |
| Current | Only 60uA in sleep mode |
| Size | 20*40mm |
| Working Temperature | -40℃ ~ 85℃ |
| Part List: | |
|---|---|
| Grove - LoRa-E5 PCBA (113020091) *1 | |
| Grove Universal Cable *1 |
We ship worldwide. Your order will be packaged really carefully and delivered wherever you want. Delivery takes between 4-6 business days. You will receive an e-mail after ordering with more information about the delivery.
Orders can be returned or exchanged within 30 days of receiving the parcel, providing they are in original resalable condition.
We work hard to deliver your items without damage. Orders can be returned or exchanged within 30 days of receiving the parcel, providing they are in original resalable condition.
