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Two small green circuit boards with OLED screens and antennas

MCDODO

MCDODO ESP32-S3FN8 LoRa SX1262 0.96" OLED 863-928 MHz 2-Pack

SKU CH-FBM6-0G7A8

Twin ESP32-S3FN8 LoRa boards with SX1262 radios, 0.96" OLED displays and 863-928 MHz coverage for Meshtastic networks

  • TypeSingle Board Computers
  • ESP32-S3FN8 dual-core runs at 240 MHz for fast IoT logic
  • SX1262 LoRa chip covers 863-928 MHz for long-range links
  • Onboard 0.96" 128×64 OLED shows debug and battery data
  • CP2102 Type-C serial port simplifies code upload and monitoring
  • Integrated Wi-Fi and BT plus IPEX antenna option for flexible connectivity

ESP32-S3FN8 dual-core board

The MCDODO ESP32-S3FN8 LoRa board pairs a 240 MHz Xtensa LX7 dual-core processor with an SX1262 radio covering 863-928 MHz. Onboard Wi-Fi and Bluetooth add 2.4 GHz connectivity while a 0.96 inch 128*64 OLED shows debug data and battery status. A CP2102 USB-C serial chip handles programming and log output. The two-pack suits hobbyists building Meshtastic nodes or long-range sensor networks.

863-928 MHz radio headroom

The SX1262 transceiver delivers sub-GHz LoRa links across the 863-928 MHz band with the supplied large antenna for improved range. The 240 MHz dual-core MCU manages protocol stacks and local processing without bottlenecking typical packet rates. Wi-Fi and Bluetooth share the same 2.4 GHz spring antenna, so concurrent heavy traffic on all three radios can contend for CPU cycles and RF bandwidth. The 0.96 inch OLED and CP2102 interface add negligible load.

Upgrade from single-core ESP32 LoRa

Builders moving from earlier single-core ESP32 LoRa modules gain a second core, higher peak frequency and the SX1262's better sensitivity and duty-cycle handling. The integrated OLED and USB-C serial remove the need for external display or FTDI adapters. The jump is worth it when a project needs simultaneous Wi-Fi, Bluetooth and LoRa stacks or when the larger antenna and RF shielding improve link reliability in noisy environments.

Høydepunkter

  • ESP32-S3FN8 dual-core runs at 240 MHz for fast IoT logic
  • SX1262 LoRa chip covers 863-928 MHz for long-range links
  • Onboard 0.96" 128×64 OLED shows debug and battery data
  • CP2102 Type-C serial port simplifies code upload and monitoring
  • Integrated Wi-Fi and BT plus IPEX antenna option for flexible connectivity

Spesifikasjoner

TypeSingle Board Computers

Spørsmål om denne varen

Will the dual-core ESP32-S3FN8 running at 240 MHz work with my existing 32-bit Arduino libraries?

Yes, the ESP32-S3FN8 uses an Xtensa 32-bit LX7 dual-core architecture compatible with the Arduino framework, so your current 32-bit libraries will compile and run on this board.

How can I verify the SX1262 LoRa radio and the 0.96-inch 128×64 OLED are functioning after I connect the board?

Power the board via the USB Type-C port; the CP2102 serial chip will enumerate, and example Meshtastic or Arduino sketches can print diagnostic data to the OLED and transmit test packets on the 863–928 MHz band to confirm both radio and display operation.

The kit is a 2-pack — does each board include its own USB Type-C cable and external LoRa antenna, or must I buy those separately?

Each board has an onboard 2.4 GHz metal spring antenna and a reserved IPEX connector for an external LoRa antenna; a USB Type-C cable is not included and must be supplied separately for power and programming.

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