| GENERAL |
| Type: | LoRa RF development board |
| Frequency range: | 863-928 MHz |
| Frequency stability: | ? ppm |
| Mode: | Chirp Spread Spectrum |
| Power supply: | 3.3-5 VDC (Via header, battery interface or USB) |
| Current drain / power consumption: | Less than 500 mA |
| Antenna impedance / connector: | 50 ohm / IPEX (U.FL) |
| Dimensions (W*H*D): | 51*26*11 mm (2.01*1.02*0.43") |
| Weight: | ? g (? oz) |
| Other features: |
0.96"128*64 dot matrix OLED display. BMS for 3.7 V lithium battery.
Arduino development environment is supported.
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| LoRa RF SECTION |
| LoRa chipset: | SX1276 / SX1278 |
| Receiver sensitivity: |
| Sensitivity | @Bandwidth | @Spreading factor |
| -135 dBm / 0.04 uV | 125 KHz | 12 |
| -130 dBm / 0.071 uV | 125 KHz | 10 |
| -124 dBm / 0.14 uV | 125 KHz | 7 |
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| Max RF output power: | 19±1 dBm / 63-100 mW |
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| DIGITAL SECTION |
| Master chipset: | ESP32 (Tensilica LX6 dual core) |
| Memory: |
SRAM: 512 KB
SPI flash: 8 MB
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| USB: | Micro USB connector. CP2102 chip |
| Wireless: |
WiFi: 802.11 b/g/n up to 150 Mbps
Bluetooth: v4.2 BD/EDR and BLE
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| Pinout: | A total of 36 pins on two headers
GPIO, ADC, UART, I2C, SPI and more |
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| MISCELLANEOUS |
| Manufactured: | China, 2018-202x (Discontinued) |
| Additional info: |
Version 2 hardware revisions
v2 (2018-09-15)
Initial version 2 release.
v2.1 (2019-06-15)
Changed the RF switch from PE4259 to UPG2179, and changed the
RF part to the official recommended value.
Changed the power detection pin from 13(ADC2: 4) to 37(ADC1: 1).
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| Related documents: |
User manual (889 KB)
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| Modifications and fixes: | |
| Reviews: | |
| Options / Accessories: |
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