The TTGO T-Beam is an all-in-one IoT Development Board. It is a complete hardware solution that can be used for various battery-operated IoT Projects. It includes the following hardware - ESP32 for WiFi and Bluetooth BLE, LoRa, GPS, and also an 18650 Lithium Battery Holder. You can run your IoT Project on battery with no extra hardware connection/soldering to be done. Just attach a sensor required to the board and you can start logging data. The board offers a complete solution for your hardware IoT Product - program upload/debugging, battery powering, and battery charging with no extra hardware. The ESP32 can be programmed through Arduino and acts as a master for the other pheripherals.

Comes with CH9102F USB to Serial Converter for programming and debugging. Perfectly suitable for making Sensor Nodes, IoT Products, Loggers, GPS Trackers, etc

The TTGO T-Beam offers 26-pin headers with GPIO, ADC, VP/VN, DAC, touch, SPI, I2C, UART, 2×“LoRa” pin, and power signals (5V/3.3V/GND). There are also two buttons on the board—one is for power, but the second is connected to the GPIO39 pin of the ESP32.

The board 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, with an included SMA antenna. While location tracking is provided by the onboard u-Blox NEO-6M GPS module with a ceramic antenna.

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, and while a 18650 sort of looks like a “standard” AA battery, it’s significantly different. So don’t make the mistake of substituting in the more common AA battery to try and power the board. They’re not quite the same size, but I’ve seen people attempt this substitution nonetheless.

Features:

Highly configurable data packet processing program, the configuration parameter data can be saved in EEPROM.
ERP32 with the new version REV1 supports wireless Internet access and wireless Bluetooth connection.
Designated module with ceramic antenna and super signal, supports automatic gain control and automatic frequency correction.
GPS With the help of a global positioning system, GPS module NEO-6M, 3V-5V universal power supply.
It also has a digital RSSI function, RF wake-up function,
4MB flash memory,
Low voltage detection, and temperature sensor,
Fast wake-up and frequency hopping LED signal indicator, and battery with data backup.

LILYGO® TTGO T-Beam V1.1 ESP32 868Mhz LoRa (alternate for SX1276) Wireless Bluetooth GPS NEO-6M Module, with 18650 Battery Holder & SoftRF is your perfect LoRa companion.

ESP32 Features

Lastest ESP32 Version: REV1
WIFI
Bluetooth
8MB PSRAM
4MB Flash
3D Antenna

LORA

Working voltage: 1.8~3.7v
Acceptable current：10~14mA
Transmit current: [email protected]+20dBm, [email protected]+17dBm, [email protected]+13dBm
Operating frequency: 868MHz version
Transmit power: +20dBm
Receive sensitivity :[email protected] &62.5Khz&SF=12&146bps
[email protected] &125Khz&SF=12&293bps
[email protected] &125Khz&SF=6&9380bps
[email protected]&5Khz&1.2Kbps
Frequency error：+/-15KHz
FIFO space ： 64Byte
Data rate ：[email protected]
[email protected]
Modulation Mode ：FSK,GFSK,MSK,GMSK,LoRa TM，OOK
Interface form ： SPI
Sleep current ：[email protected] & [email protected]
Operating temperature ：-40℃- +85℃
Digital RSSI function
Automatic frequency correction
Automatic gain control
Low voltage detection and temperature sensor
Fast wake-up and frequency hopping
Highly configurable data packet handler