| GENERAL |
| Type: | LoRa RF development board |
| Frequency range: | 868-928 MHz |
| Frequency stability: | ? ppm |
| Mode: | Chirp Spread Spectrum |
| Power supply: | 3.3-5 VDC (Via header, battery interface or USB-C) |
| Current drain / power consumption: | Max 750 mA |
| Antenna impedance / connector: | 50 ohm / IPEX (U.FL) |
| Dimensions (W*H*D): | 52*26*11 mm (2.05*1.02*0.43") |
| Weight: | ? g (? oz) |
| Other features: |
0.96" 128*64 dot matrix OLED display. Optimized lithium battery BMS.
Solar panel input (SH1.25-2P). GNSS interface (SH1.25-8P). Arduino
development environment is supported.
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| LoRa RF SECTION |
| LoRa chipset: | SX1262 |
| Receiver sensitivity: |
| Sensitivity | @Bandwidth | @Spreading factor |
| -137 dBm / 0.03 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: | 28±1 dBm / 501-794 mW |
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| DIGITAL SECTION |
| Master chipset: | ESP32-S3R2 (Xtensa 32-bit LX7 dual core) |
| Memory: |
ROM: 384 KB
PSRAM: 2 MB
SRAM: 512 KB
RTC SRAM: 16 KB
SiP flash: 16 MB
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| USB: | Type C connector with RF isolation, ESD- and short circuit protection |
| Wireless: |
WiFi: 802.11 b/g/n up to 150 Mbps
Bluetooth: BLE, BT5 and BT mesh
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| Pinout: | A total of 36 pins on two headers
GPIO, ADC/DAC, I2C, SPI and more |
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| MISCELLANEOUS |
| Manufactured: | China, 2025-202x |
| Additional info: |
This is a popular board among Meshtastic users.
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| Related documents: |
Datasheet (1.2 MB)
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| Modifications and fixes: | |
| Reviews: | |
| Options / Accessories: |
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