TTGO Meshtastic T-Beam V1.1 ESP32 433/868/915/923Mhz WiFi Bluetooth ESP32 GPS

Description

TTGO Meshtastic T-Beam V1.1 ESP32 433/868/915/923Mhz WiFi Bluetooth ESP32 GPS
（Note: OLED is not soldered to T-BEAM）
Product Features:
ESP32
Latest ESP32 Version: REV1
WIFI
bluetooth
4MB PSRAM
4MB Flash
3D Antenna
LORA
Product Description:
Working voltage: 1.8~3.7v
Acceptable current：10~14mA
Transmit current: 120mA@+20dBm
90mA@+17dBm
29mA@+13dBm
Operating frequency: 433/470MHz(433HMz version) /868M/915M(868MHz version)
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
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
TP5400
1A Battery Management
LED indicator: There are 4 LEDs show the battery status in real time.
USB
CP2104-GMR
Pre-Flash Firmware
OLED Description:
1.Size:  0.96 inch
2.High resolution: 128 * 64
3.Color:  white
4.Viewing angle:  > 160 °
5.Driver IC:  SSD1306
6.Working temperature:  -30  celcius ~ 80  celcius
7.Module volume (generous):  27.0MM * 27.0MM * 4.1MM
8.Supports many control chip:  Fully compatible with Arduino, 51 series, MSP430 series,STM32/2, CSR chip, etc.  (a lot of routines for reference)
9.Wide voltage support: without any modification, directly supports 3.3V ~ 5V DC
10.Ultra-low power consumption: Normal operation Is 0.04W
11.IO port occupies minimal display: The IIC communication, as long as the two IO ports