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Wireless Lora 868Mhz ESP32 With OLED 0.96 Inch Display Module with Antenna TTGO

Wireless Lora 868Mhz ESP32 With OLED 0.96 Inch Display Module with Antenna TTGO

The TTGO LoRa32 board is an ESP32-based development board that integrates a 0.96-inch OLED display and an SX1276 LoRa transceiver for the 868 MHz band. LoRa is a long-range wireless communication technology using radio modulation, implemented here via the Semtech SX1276 chip. This board also features a unique bent-metal WiFi antenna located at the back, onboard 4MB Flash, GPIOs for peripherals, and lithium battery support with charging circuitry. It includes two buttons (reset and flash mode), uses a CP2102 USB-to-serial interface for easy programming, and requires an external antenna connected to the IPEX interface for safe LoRa operation.

Package Includes

  • 1 × TTGO LoRa32 ESP32 with OLED & SX1276 (868 MHz)
  • 1 × 868 MHz Spring Antenna
  • 1 × USB Power Line
  • 2 × Pin Header Rows

124.95 AED 124.95 AED Tax Included
124.95 AED Tax Included

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Specifications

  • Operating Voltage: 3.3V to 7V
  • Operating Temperature: -40°C to +90°C
  • Supported Modes: Sniffer, Station, SoftAP, Wi-Fi Direct
  • Data Rates:
    • 150 Mbps @ 11n HT40
    • 72 Mbps @ 11n HT20
    • 54 Mbps @ 11g
    • 11 Mbps @ 11b
  • Transmit Power:
    • 19.5 dBm @ 11b
    • 16.5 dBm @ 11g
    • 15.5 dBm @ 11n
  • Receiver Sensitivity: Up to -98 dBm
  • UDP Sustained Throughput: 135 Mbps
  • 868 MHz Antenna: Must be connected to IPEX interface
  • Battery Circuit: Lithium battery charge/discharge with status LED

Pinout

TTGO LoRa32 Pinout

OLED Display (I2C)

OLED ESP32 Pin
SDA GPIO 4
SCL GPIO 15
RST GPIO 16

SX1276 LoRa (SPI)

LoRa Pin ESP32 Pin
MISO GPIO 19
MOSI GPIO 27
SCK GPIO 5
CS GPIO 18
IRQ GPIO 26
RST GPIO 14

 

Example Code

#include "SPI.h"
#include "LoRa.h"
#include "Wire.h"
#include "Adafruit_GFX.h"
#include "Adafruit_SSD1306.h"

#define SCK 5
#define MISO 19
#define MOSI 27
#define SS 18
#define RST 14
#define DIO0 26

#define BAND 866E6

#define OLED_SDA 4
#define OLED_SCL 15
#define OLED_RST 16
#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RST);
int counter = 0;

void setup() {
  Serial.begin(115200);
  pinMode(OLED_RST, OUTPUT);
  digitalWrite(OLED_RST, LOW); delay(20); digitalWrite(OLED_RST, HIGH);

  Wire.begin(OLED_SDA, OLED_SCL);
  if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) while (true);
  display.clearDisplay();
  display.setTextSize(1);
  display.setTextColor(WHITE);
  display.setCursor(0, 0);
  display.println("LoRa Sender");
  display.display();

  SPI.begin(SCK, MISO, MOSI, SS);
  LoRa.setPins(SS, RST, DIO0);
  if (!LoRa.begin(BAND)) while (true);
}

void loop() {
  LoRa.beginPacket();
  LoRa.print("Hello ");
  LoRa.print(counter);
  LoRa.endPacket();

  display.clearDisplay();
  display.setCursor(0, 0);
  display.println("Packet Sent!");
  display.setCursor(0, 20);
  display.print("Counter: ");
  display.print(counter);
  display.display();

  counter++;
  delay(10000);
}