LilyGo T3-S3 MVSR LoRa Development Board 868 MHz

The T3-S3 MVSR combines the ESP32-S3 development board with an MVSR extension for audio, vibration, and real-time clock. The dual-core microcontroller offers Wi-Fi and Bluetooth connectivity, as well as a LoRa module SX1276 in the 868 MHz band for energy-efficient data transmission. The 0.96-inch OLED display with 128×64 pixels allows for a clear display of menus and readings. The integrated MAX98357A amplifier drives the speaker, while a digital microphone and a PWM-controlled vibration motor provide voice transmission and haptic feedback. The real-time clock PCF85063ATL allows for timestamped data and supports sleep modes. A MicroSD card is used for local storage, and a USB-C port or a 3.7 V LiPo battery can be used for power supply. The included 868 MHz antenna can be connected via the U.FL connection, and reset and boot buttons facilitate programming and debugging.

Recommended Accessories:

Features:

LoRa transceiver SX1276 in the 868 MHz band for long-range communication.
ESP32-S3 microcontroller with 4 MB Flash and 2 MB PSRAM for wireless applications.
Wi-Fi 802.11 b/g/n and Bluetooth 5.0 LE for wireless connectivity.
MVSR extension with MAX98357A amplifier, digital microphone, and vibration motor.
Real-time clock PCF85063ATL for accurate timekeeping and low-power modes.
0.96-inch OLED display with 128×64 pixels for clear display.
Power supply via USB-C or 3.7 V LiPo battery with integrated charging management.

Use Cases:

LoRa walkie-talkies for voice communication and vibration signals over long distances.
Data logger for environmental or sensor data with timestamp and LoRa transmission.
Portable measurement devices with audio output and haptic feedback.
Wearable prototypes with vibration notifications and LoRa connection.
Educational tools for introducing LoRa radio, audio processing, and embedded programming.