TTGO T-Beam ESP32 LoRa 868MHz

The TTGO T-Beam ESP32 LoRa 868MHz is built around a dual-core ESP32 chip, with 4MB of SPI flash onboard, providing both Wi-Fi and Bluetooth LE via a “3D antenna” on the PCB. The board’s LoRa operates at 868MHz and comes with an included SMA antenna. While location tracking is provided by the onboard u-blox NEO-6M GPS module with ceramic antenna.



The TTGO T-Beam offers 26-pin headers with GPIO, ADC, VP/VN, DAC, touch, SPI, I2C, UART, 2דLoRa” pin, and power signals (5V/3.3V/GND). There are also three (3) buttons - Power, second switch connected to the GPIO38 pin of the ESP32, and Reset.

The board can be programmed using the Arduino development environment, and the example code shows you how to both send and receive data via LoRa. Flipping the board over there is a battery holder for a 18650 Li-Ion cell.

Quick Spec

TTGO T-Beam

• Working Voltage: 1.8 ~ 3.7V
• Acceptable Current：10 ~ 14mA
• Transmit Current
• 120mA @ +20dBm
• 90mA @ +17dBm
• 29mA @ +13dBm
• Operating Frequency: 868/915MHz
• Transmit Power: +20dBm
• Receive Sensitivity
• -139dBm@LoRa &62.5Khz&SF=12&146bps
• -136dBm@LoRa &125Khz&SF=12&293bps
• -118dBm@LoRa &125Khz&SF=6&9380bps
• -123dBm@FSK &5Khz&1.2Kbps
• Frequency Error：+/-15KHz
• FIFO Space：64Byte
• Data Rate
• 1.2K~300Kbps@FSK
• 0.018K~37.5Kbps@LoRa
• Modulation Mode: FSK,GFSK,MSK,GMSK,LoRa TM，OOK
• Interface Form: SPI
• Sleep Current
• 0.2uA@SLEEP
• 1.5uA@IDLE
• Operating Temperature：-40 ~ +85℃
• Digital RSSI function
• Automatic frequency correction
• Automatic gain control
• Low voltage detection
• Fast wake-up and frequency hopping
• Highly configurable data packet handler
• Dimensions: 100 x 33 x 20mm

GPS

• GPS modules NEO-6M, 3V-5V power supply Universal
• Destined module with ceramic antenna, signal super
• Save the configuration parameter data EEPROM Down
• With data backup battery
• There are LED signal indicator
• Default Baud Rate: 9600

Power

• Power Supply Input: USB 5V/1A
• Charging Current: 500mA
• Battery Input: 3.7 ~ 4.2V
• Charge IC: AXP192

OLED

• Size: 0.96 inch
• Resolution: 128 x 64
• Colour: white
• Viewing Angle: >160°
• Driver IC: SSD1306
• Working Temperature: -30 ~ +80°C
• Operating Voltage: 3.3V ~ 5V DC
• Power Consumption: 0.04W
• Communication: I2C
• Dimensions: 27 x 27 x 4.1mm

Pinout

Resources

• Additional Information

Shipping List

• 1 x TTGO T-Beam ESP32 LoRA 868MHz
• 1 x 868MHz Antenna
• 1 x 0.96 inch 128X64 OLED
• 2 x Header Set