Precise details:

Update information:

Product Description:

Pin reference description:

For more product information, click https://drive.google.com/file/d/1L8ll-DeAC2SATBZn0-KbSaZsrinbnXkF/view

Test details:

Click links for more details: https://eyun.baidu.com/s/3hsiTNgg

Note:This product does not include the battery.

Package included:

2 x ESP32 OLED
2 x Line
4 x pin
2 x 433m Spring Antenna

For example One:

(1) LoRaSender
#include
#include
#include
// GPIO5 -- SX1278's SCK
// GPIO19 -- SX1278's MISO
// GPIO27 -- SX1278's M0SI
// GPIO18 -- SX1278's CS
// GPIO14 -- SX1278's RESET
// GPIO26 -- SX1278's IRQ(Interrupt Request)

#define SS 18
#define RST 14
#define DI0 26
#define BAND 433E6
int counter = 0;

void setup() {
pinMode(25,OUTPUT); //Send success, LED will bright 1 second

Serial.begin(115200);
while (!Serial); //If just the the basic function, must connect to a computer

SPI.begin(5,19,27,18);
LoRa.setPins(SS,RST,DI0);
// Serial.println("LoRa Sender");

if (!LoRa.begin(BAND)) {
Serial.println("Starting LoRa failed!");
while (1);
}
Serial.println("LoRa Initial OK!");
}

void loop() {
Serial.print("Sending packet: ");
Serial.println(counter);

// send packet
LoRa.beginPacket();
LoRa.print("hello ");
LoRa.print(counter);
LoRa.endPacket();

counter++;
digitalWrite(25, HIGH); // turn the LED on (HIGH is the voltage level)
delay(1000); // wait for a second
digitalWrite(25, LOW); // turn the LED off by making the voltage LOW
delay(1000); // wait for a second

delay(3000);
}

For example Two
(2)LoRaReceiver
#include
#include


// GPIO5 -- SX1278's SCK
// GPIO19 -- SX1278's MISO
// GPIO27 -- SX1278's M0SI
// GPIO18 -- SX1278's CS
// GPIO14 -- SX1278's RESET
// GPIO26 -- SX1278's IRQ(Interrupt Request)

#define SS 18
#define RST 14
#define DI0 26
#define BAND 433E6

void setup() {
Serial.begin(115200);
while (!Serial); //if just the the basic function, must connect to a computer
delay(1000);

Serial.println("LoRa Receiver");

SPI.begin(5,19,27,18);
LoRa.setPins(SS,RST,DI0);

if (!LoRa.begin(BAND)) {
Serial.println("Starting LoRa failed!");
while (1);
}
}

void loop() {
// try to parse packet
int packetSize = LoRa.parsePacket();
if (packetSize) {
// received a packet
Serial.print("Received packet '");

// read packet
while (LoRa.available()) {
Serial.print((char)LoRa.read());
}

// print RSSI of packet
Serial.print("' with RSSI ");
Serial.println(LoRa.packetRssi());
}
}

For example three
(3)LoRaReceiverCallback
#include
#include



// GPIO5 -- SX1278's SCK
// GPIO19 -- SX1278's MISO
// GPIO27 -- SX1278's M0SI
// GPIO18 -- SX1278's CS
// GPIO14 -- SX1278's RESET
// GPIO26 -- SX1278's IRQ(Interrupt Request)

#define SS 18
#define RST 14
#define DI0 26
#define BAND 433E6

void setup() {
Serial.begin(115200);
while (!Serial); //if just the the basic function, must connect to a computer

SPI.begin(5,19,27,18);
LoRa.setPins(SS,RST,DI0);

Serial.println("LoRa Receiver Callback");

if (!LoRa.begin(BAND)) {
Serial.println("Starting LoRa failed!");
while (1);
}

// register the receive callback
LoRa.onReceive(onReceive);

// put the radio into receive mode
LoRa.receive();
}

void loop() {
// do nothing
}

void onReceive(int packetSize) {
// received a packet
Serial.print("Received packet '");

// read packet
for (int i = 0; i < packetSize; i++) {
Serial.print((char)LoRa.read());
}

// print RSSI of packet
Serial.print("' with RSSI ");
Serial.println(LoRa.packetRssi());
}
?
For example four
#include // Only needed for 1.6.5 and earlier
#include "SSD1306.h" // alias for `#include "SSD1306Wire.h"`
#include "images.h"

//OLED pins to ESP32 0.96OLEDGPIOs via this connecthin:
//OLED_SDA -- GPIO4
//OLED_SCL -- GPIO15
//OLED_RST -- GPIO16

SSD1306 display(0x3c, 4, 15);

#define DEMO_DURATION 3000
typedef void (*Demo)(void);
int demoMode = 0;
int counter = 1;

void setup() {
pinMode(16,OUTPUT);
digitalWrite(16, LOW); // set GPIO16 low to reset OLED
delay(50);
digitalWrite(16, HIGH); // while OLED is running, must set GPIO16 in high

Serial.begin(115200);
Serial.println();
Serial.println();


// Initialising the UI will init the display too.
display.init();

display.flipScreenVertically();
display.setFont(ArialMT_Plain_10);

}

void drawFontFaceDemo() {
// Font Demo1
// create more fonts at http://oleddisplay.squix.ch/
display.setTextAlignment(TEXT_ALIGN_LEFT);
display.setFont(ArialMT_Plain_10);
display.drawString(0, 0, "Hello world");
display.setFont(ArialMT_Plain_16);
display.drawString(0, 10, "Hello world");
display.setFont(ArialMT_Plain_24);
display.drawString(0, 26, "Hello world");
}

void drawTextFlowDemo() {
display.setFont(ArialMT_Plain_10);
display.setTextAlignment(TEXT_ALIGN_LEFT);
display.drawStringMaxWidth(0, 0, 128,
"Lorem ipsumn dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore." );
}

void drawTextAlignmentDemo() {
// Text alignment demo
display.setFont(ArialMT_Plain_10);

// The coordinates define the left starting point of the text
display.setTextAlignment(TEXT_ALIGN_LEFT);
display.drawString(0, 10, "Left aligned (0,10)");

// The coordinates define the center of the text
display.setTextAlignment(TEXT_ALIGN_CENTER);
display.drawString(64, 22, "Center aligned (64,22)");

// The coordinates define the right end of the text
display.setTextAlignment(TEXT_ALIGN_RIGHT);
display.drawString(128, 33, "Right aligned (128,33)");
}

void drawRectDemo() {
// Draw a pixel at given position
for (int i = 0; i < 10; i++) {
display.setPixel(i, i);
display.setPixel(10 - i, i);
}
display.drawRect(12, 12, 20, 20);

// Fill the rectangle
display.fillRect(14, 14, 17, 17);

// Draw a line horizontally
display.drawHorizontalLine(0, 40, 20);

// Draw a line horizontally
display.drawVerticalLine(40, 0, 20);
}

void drawCircleDemo() {
for (int i=1; i < 8; i++) {
display.setColor(WHITE);
display.drawCircle(32, 32, i*3);
if (i % 2 == 0) {
display.setColor(BLACK);
}
display.fillCircle(96, 32, 32 - i* 3);
}
}
void drawProgressBarDemo() {
int progress = (counter / 5) % 100;
// draw the progress bar
display.drawProgressBar(0, 32, 120, 10, progress);

// draw the percentage as String
display.setTextAlignment(TEXT_ALIGN_CENTER);
display.drawString(64, 15, String(progress) + "%");
}

void drawImageDemo() {
// see http://blog.squix.org/2015/05/esp8266-nodemcu-how-to-create-xbm.html
// on how to create xbm files
display.drawXbm(34, 14, WiFi_Logo_width, WiFi_Logo_height, WiFi_Logo_bits);
}

Demo demos[] = {drawFontFaceDemo, drawTextFlowDemo, drawTextAlignmentDemo, drawRectDemo, drawCircleDemo, drawProgressBarDemo, drawImageDemo};
int demoLength = (sizeof(demos) / sizeof(Demo));
long timeSinceLastModeSwitch = 0;

void loop() {
// clear the display
display.clear();
// draw the current demo method
demos[demoMode]();

display.setTextAlignment(TEXT_ALIGN_RIGHT);
display.drawString(10, 128, String(millis()));
// write the buffer to the display
display.display();

if (millis() - timeSinceLastModeSwitch > DEMO_DURATION) {
demoMode = (demoMode + 1) % demoLength;
timeSinceLastModeSwitch = millis();
}
counter++;
delay(10);
}