TTGO LORA 868 MHZ with ESP32 and OLED

Description

Compact board based on the ESP32 Wi-Fi module and the LoRa™ SX1276 transceiver module at 868 MHz. The board also includes 32 MB flash memory, a metal Wi-Fi antenna soldered directly onto the PCB, an antenna connector (antenna included) for LoRa™, a 0.96" OLED display, a lithium polymer battery charger, a micro USB connector, a CP2102 USB-to-serial converter, a micro SD card slot, and 2 status LEDs. Ideal for IoT (Internet of Things) applications, it can be programmed using the Arduino IDE.

The package includes: the board, the 868 MHz antenna, a power cable with connector, and two 13-pin strip connectors.

Technical specifications

• ESP32:
  – Interfaces: SD, UART (3 channels), SPI (3 channels), SDIO, I2C (2 channels), I2S (2 channels), IR LED PWM (2 channels) and motor PWM (3 channels);
  – GPIO types: Digital IO (36), 12-bit ADC (16 channels), 8-bit DAC (2 channels), capacitive sensor (10 channels); LNA preamplifier;
  WiFi:
  – 802.11 b/g/n: 2.4 to 2.5 GHz
  – Data rate: 150 Mbps @ 11n HT40, 72 Mbps @ 11n HT20, 54 Mbps @ 11g, 11 Mbps @ 11b
  – Wi-Fi encryption: AES / RSA / ECC / SHA;
  Bluetooth:
  – 4.2 BR/EDR and BLE (Bluetooth Low Energy)
• OLED display:
  – 0.96" blue with SSD1306 graphics controller
• LoRa™:
  – Modulation modes: FSK, GFSK, MSK, GMSK, LoRa TM, OOK

Documentation and useful links

• Datasheet (ESP32)
• ESP32.com
• Espressif ESP32 Resource Page
• https://github.com/Xinyuan-LilyGo/TTGO-LoRa-Series
• https://github.com/LilyGO/ESP32-Paxcounter