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attribute name attributes construct error Couldn't find end of Start Tag c.length line 1 xmlParseEntityRef: no name EntityRef: expecting ';' xmlParseEntityRef: no name xmlParseEntityRef: no name EntityRef: expecting ';' EntityRef: expecting ';' error parsing attribute name attributes construct error Couldn't find end of Start Tag b.a.length line 1 xmlParseEntityRef: no name xmlParseEntityRef: no name xmlParseEntityRef: no name xmlParseEntityRef: no name EntityRef: expecting ';' xmlParseEntityRef: no name xmlParseEntityRef: no name xmlParseEntityRef: no name xmlParseEntityRef: no name xmlParseEntityRef: no name xmlParseEntityRef: no name xmlParseEntityRef: no name xmlParseEntityRef: no name xmlParseEntityRef: no name xmlParseEntityRef: no name xmlParseEntityRef: no name error parsing attribute name attributes construct error Couldn't find end of Start Tag a.width line 1 xmlParseEntityRef: no name xmlParseEntityRef: no name error parsing attribute name attributes construct error Couldn't 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not defined Entity 'nbsp' not defined error parsing attribute name attributes construct error Couldn't find end of Start Tag i.length line 1 error parsing attribute name attributes construct error Couldn't find end of Start Tag k.length line 1 error parsing attribute name attributes construct error Couldn't find end of Start Tag j.length line 1 StartTag: invalid element name Specification mandate value for attribute data-pagespeed-no-defer xmlParseEntityRef: no name EntityRef: expecting ';' xmlParseEntityRef: no name EntityRef: expecting ';' error parsing attribute name attributes construct error Couldn't find end of Start Tag this.b.length line 1 xmlParseEntityRef: no name EntityRef: expecting ';' error parsing attribute name attributes construct error Couldn't find end of Start Tag this.b.length line 1 xmlParseEntityRef: no name EntityRef: expecting ';' EntityRef: expecting ';' EntityRef: expecting ';' error parsing attribute name attributes construct error Couldn't find end of Start Tag d.c.length line 1 error parsing attribute name attributes construct error Couldn't find end of Start Tag b line 1 error parsing attribute name attributes construct error Couldn't find end of Start Tag a.length line 1 xmlParseEntityRef: no name xmlParseEntityRef: no name xmlParseEntityRef: no name Opening and ending tag mismatch: link line 1 and noscript Specification mandate value for attribute data-pagespeed-no-defer xmlParseEntityRef: no name EntityRef: expecting ';' xmlParseEntityRef: no name xmlParseEntityRef: no name Opening and ending tag mismatch: noscript line 1 and body Opening and ending tag mismatch: body line 1 and html Premature end of data in tag meta line 1 Premature end of data in tag meta line 1 Premature end of data in tag head line 1 Premature end of data in tag html line 1
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  • Failed loading XML... Opening and ending tag mismatch: link line 1 and head Opening and ending tag mismatch: img line 1 and a Opening and ending tag mismatch: a line 1 and div Opening and ending tag mismatch: input line 1 and p Opening and ending tag mismatch: input line 1 and form Opening and ending tag mismatch: input line 1 and div Opening and ending tag mismatch: p line 1 and div Opening and ending tag mismatch: form line 1 and div error parsing attribute name attributes construct error Couldn't find end of Start Tag ahref line 1 Opening and ending tag mismatch: p line 1 and a Opening and ending tag mismatch: hr line 1 and p Opening and ending tag mismatch: hr line 1 and div Entity 'nbsp' not defined Entity 'agrave' not defined Entity 'nbsp' not defined Entity 'ntilde' not defined Entity 'ccedil' not defined Entity 'nbsp' not defined Entity 'nbsp' not defined Entity 'nbsp' not defined Entity 'aring' not defined Entity 'ecirc' not defined Entity 'acirc' not defined Entity 'nbsp' not defined Entity 'uuml' not defined Entity 'ccedil' not defined Entity 'nbsp' not defined attributes construct error Couldn't find end of Start Tag img line 1 attributes construct error Couldn't find end of Start Tag img line 1 Entity 'copy' not defined Opening and ending tag mismatch: br line 1 and p Opening and ending tag mismatch: br line 1 and div Opening and ending tag mismatch: br line 1 and div Opening and ending tag mismatch: p line 1 and body Opening and ending tag mismatch: div line 1 and html Premature end of data in tag hr line 1 Premature end of data in tag hr line 1 Premature end of data in tag hr line 1 Premature end of data in tag div line 1 Premature end of data in tag br line 1 Premature end of data in tag br line 1 Premature end of data in tag br line 1 Premature end of data in tag br line 1 Premature end of data in tag br line 1 Premature end of data in tag br line 1 Premature end of data in tag br line 1 Premature end of data in tag br line 1 Premature end of data in tag br line 1 Premature end of data in tag br line 1 Premature end of data in tag br line 1 Premature end of data in tag br line 1 Premature end of data in tag p line 1 Premature end of data in tag div line 1 Premature end of data in tag div line 1 Premature end of data in tag div line 1 Premature end of data in tag div line 1 Premature end of data in tag div line 1 Premature end of data in tag body line 1 Premature end of data in tag link line 1 Premature end of data in tag link line 1 Premature end of data in tag link line 1 Premature end of data in tag link line 1 Premature end of data in tag meta line 1 Premature end of data in tag meta line 1 Premature end of data in tag meta line 1 Premature end of data in tag meta line 1 Premature end of data in tag meta line 1 Premature end of data in tag link line 1 Premature end of data in tag meta line 1 Premature end of data in tag head line 1 Premature end of data in tag html line 1
2Pcs Wemos® TTGO LORA32 915Mhz ESP32 LoRa OLED 0.96 Inch Blue Display bluetooth WIFI ESP-32 Development Board Module With Antenna

Description:

The 915MHz antenna needs to be in connection with the IPEX interface (if the antenna is not connected, it may damage the LoRa chip)
Lithium battery charge and discharge circuit, when the battery is full, the blue LED will stop working. When using, pay attention to the positive and negative of the battery, otherwise it will be damaged!
With IO port touch screen touch signal input, you need to add the 100nF pull-down capacitor to this pin!
Note:This product does not include the battery.

Example:
This product is a SX1276 chip based on ESP32 WIFI increased OLED, namely LoRa remote modem, 915MHz frequency, high sensitivity is over-148dBm, + 20dBm output power, high reliability, long transmission distance.
the onboard 32MB Flash wi-fi antenna, 0.96 inch blue oled display, lithium battery charging circuit, CP2102 interface and USB serial chip, the perfect support for Arduino development environment, can be used for program checking and product development is very easy and fast.
Operating voltage: 3.3V to 7V
Operating temperature range: -40 ° C to + 90 ° C
Support for Sniffer software protocol analysis, Station, SoftAP, and Wi-Fi Direct modes
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 of 135 Mbps

Antenne: TX915-JZ-5 (and wrong for Switzerland)



For example One:   For example One: LoRaSender

(1) 868mhz / 915MhzOLED LoRaSender
#include
#include
#include
#include "SSD1306.h"
#include "images.h"

#define SCK 5 // GPIO5 - SX1278's SCK
#define MISO 19 // GPIO19 - SX1278's MISO
#define MOSI 27 // GPIO27 - SX1278's MOSI
#define SS 18 // GPIO18 - SX1278's CS
#define RST 14 // GPIO14 - SX1278's RESET
#define DI0 26 // GPIO26 - SX1278's IRQ (interrupt request)
#define BAND 868E6 // 915E6

unsigned int counter = 0;

SSD1306 display (0x3c, 4, 15);
String rssi = "RSSI -";
String packSize = "-";
String packet;


void setup () {
  pinMode (16, OUTPUT);
  pinMode (2, OUTPUT);
  
  digitalWrite (16, LOW); // set GPIO16 low to reset OLED
  delay (50);
  digitalWrite (16, HIGH); // while OLED is running, GPIO16 must go high
  
  Serial.begin (9600);
  while (! Serial);
  Serial.println ();
  Serial.println ("LoRa Sender Test");
  
  SPI.begin (SCK, MISO, MOSI, SS);
  LoRa.setPins (SS, RST, DI0);
  if (! LoRa.begin (868)) {
    Serial.println ("Starting LoRa failed!");
    while (1);
  }
  //LoRa.onReceive(cbk);
// LoRa.receive ();
  Serial.println ("init ok");
  display.init ();
  display.flipScreenVertically ();
  display.setFont (ArialMT_Plain_10);
  delay (1500);
}

void loop () {
  display.clear ();
  display.setTextAlignment (TEXT_ALIGN_LEFT);
  display.setFont (ArialMT_Plain_10);
  
  display.drawString (0, 0, "Sending packet:");
  display.drawString (90, 0, String (counter));
  display.display ();

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

  counter ++;
  digitalWrite (2, HIGH); // turn the LED on (HIGH is the voltage level)
  delay (1000); // wait for a second
  digitalWrite (2, LOW); // turn the LED off by making the voltage LOW
  delay (1000); // wait for a second
}

(2) 868mhz / 915Mhz OLED LoRaSender
#include
#include
#include
#include "SSD1306.h"
#include "images.h"

#define SCK 5 // GPIO5 - SX1278's SCK
#define MISO 19 // GPIO19 - SX1278's MISO
#define MOSI 27 // GPIO27 - SX1278's MOSI
#define SS 18 // GPIO18 - SX1278's CS
#define RST 14 // GPIO14 - SX1278's RESET
#define DI0 26 // GPIO26 - SX1278's IRQ (interrupt request)
#define BAND 868E6 // 915E6

SSD1306 display (0x3c, 4, 15);
String rssi = "RSSI -";
String packSize = "-";
String packet;



void loraData () {
  display.clear ();
  display.setTextAlignment (TEXT_ALIGN_LEFT);
  display.setFont (ArialMT_Plain_10);
  display.drawString (0, 15, "Received" + packSize + "bytes");
  display.drawStringMaxWidth (0, 26, 128, packet);
  display.drawString (0, 0, rssi);
  display.display ();
}

void cbk (int packetSize) {
  packet = "";
  packSize = String (packetSize, DEC);
  for (int i = 0; i <packetsize; i="" br="" lora.read="" packet="">   rssi = "RSSI" + string (LoRa.packetRssi (), DEC);
  loraData ();
}

void setup () {
  pinMode (16, OUTPUT);
  digitalWrite (16, LOW); // set GPIO16 low to reset OLED
  delay (50);
  digitalWrite (16, HIGH); // while OLED is running, GPIO16 must go high,
  
  Serial.begin (9600);
  while (! Serial);
  Serial.println ();
  Serial.println ("LoRa Receiver Callback");
  SPI.begin (SCK, MISO, MOSI, SS);
  LoRa.setPins (SS, RST, DI0);
  if (! LoRa.begin (868E6)) {
    Serial.println ("Starting LoRa failed!");
    while (1);
  }
  //LoRa.onReceive(cbk);
  LoRa.receive ();
  Serial.println ("init ok");
  display.init ();
  display.flipScreenVertically ();
  display.setFont (ArialMT_Plain_10);
  
  delay (1500);
}

void loop () {
  int packetSize = LoRa.parsePacket ();
  if (packetSize) {cbk (packetSize); }
  delay (10);
}

   











Source/Quellen:
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- www.banggood.com
Github | ttgo-Lora32
thingiverse | Case
- Thingiverse & Youtube | Thingiverse & Youtube
- Github | LilyGO/TTGO-LORA32-V2.0
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