Note: OLED is not soldered to T-BEAM
Product Upgrade Content:
1. Pin GPIO34 pin is replaced with GPIO35
2. Replace the charging IC (TP5400) with the power management AXP192
3. GPS TX, RX pin replacement
4. Power on and remove, replace with button to open
5. Reduced sleep current
6. GPS battery replacement
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 , 51 series, MSP430 series,STM32/2, 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
ESP32 Features:
Lastest ESP32 Version: REV1
WIFI
bluetooth
4MB PSRAM
4MB Flash
3D Antenna
LORA Features:
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
-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: -SoftRF V4.0
Package includes:
1 x TTGO T-Beam ESP32
1 x Antenna
1 x 0.96 inch 128X64 OLED
2 x Pin
| frequency | 433MHz, 868MHZ, 915MHZ, 923MHz |
|---|
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