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Two green circuit boards with antenna, GNSS module, battery and OLED display

MCDODO

MCDODO ESP32 LoRa V4 Dev Board + L76 GNSS + 3000mAh Battery 2MB PSRAM 16MB Flash 915MHz SX1262

SKU CH-W7F3-T4VTN

ESP32-S3 development board with L76 GNSS, 915 MHz LoRa, 2 MB PSRAM, 16 MB flash and 3000 mAh battery with solar charging

  • TypeSingle Board Computers
  • ESP32-S3 with 2MB PSRAM and 16MB Flash handles complex firmware
  • L76 GNSS module supports GPS GLONASS QZSS SBAS for fast cold start
  • SX1262 LoRa radio delivers 28dBm power and -137dBm sensitivity
  • 3000mAh battery with solar input draws less than 20µA in sleep
  • Dual SH 1.25 connectors for GNSS and solar panel expansion

ESP32-S3 LoRa board with GNSS

This development board combines an ESP32-S3 processor with 2MB PSRAM and 16MB flash with a SX1262 LoRa transceiver operating at 915MHz. An integrated L76 GNSS module adds multi-system satellite positioning. A 3000mAh lithium battery and solar charging input support untethered deployments for Meshtastic networks or environmental monitoring.

Upgrade from basic ESP32 modules

The added PSRAM enables complex firmware, UI rendering and multitasking that smaller-memory boards cannot sustain. High LoRa output of 28dBm and sensitivity of -137dBm extend link range beyond standard modules. Builders needing long-range telemetry with on-board GNSS will benefit; projects without battery or solar requirements gain less from this integration.

Practical limits of the 915MHz LoRa interface

Regulatory duty-cycle rules constrain how often packets may be transmitted on this band. The SH 1.25 8-pin GNSS connector and 2-pin solar input (4.4 to 6V) limit expansion to those specific cables. Sleep current below 20μA preserves battery life, yet continuous high-rate telemetry will still deplete the 3000mAh cell within days.

Besonderheiten

  • ESP32-S3 with 2MB PSRAM and 16MB Flash handles complex firmware
  • L76 GNSS module supports GPS GLONASS QZSS SBAS for fast cold start
  • SX1262 LoRa radio delivers 28dBm power and -137dBm sensitivity
  • 3000mAh battery with solar input draws less than 20µA in sleep
  • Dual SH 1.25 connectors for GNSS and solar panel expansion

Technische Daten

TypeSingle Board Computers

Fragen zu diesem Artikel

What connector and voltage range does the solar panel input on the dev board use?

The board provides a SH 1.25 2-pin solar input that accepts 4.4 to 6 volts for charging the 3000mAh battery.

Which header do I use for the L76 GNSS module and what pin count is it?

Connect the L76 GNSS module to the dedicated SH 1.25 8-pin interface on the board.

How long will the 3000mAh battery last in sleep mode and what protection does the board include?

Sleep current is under 20 microamps, and the board provides lithium charging with overcharge protection.

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