Seeed Grove - LoRa-E5 - Page 7

Software Code
Download the example; copy the code stick onto the Aruino IDE and
then upload it.
#include <Arduino.h>
#include <U8x8lib.h>
#include "DHT.h"
#define DHTPIN 0 // what pin we're connected to
// Uncomment whatever type you're using!
#define DHTTYPE DHT11 // DHT 11
// #define DHTTYPE DHT22 // DHT 22 (AM2302)
//#define DHTTYPE DHT21 // DHT 21 (AM2301)
DHT dht(DHTPIN, DHTTYPE);
U8X8_SSD1306_128X64_NONAME_HW_I2C u8x8(/* reset=*/U8X8_PIN_NONE);
// U8X8_SSD1306_128X64_NONAME_SW_I2C u8x8(/* clock=*/ SCL, /* data=*/ SDA, /*
reset=*/ U8X8_PIN_NONE); // OLEDs without Reset of the Display
static char recv_buf[512];
static bool is_exist = false;
static bool is_join = false;
static int led = 0;
static int at_send_check_response(char *p_ack, int timeout_ms, char *p_cmd, ...)
{
int ch;
int num = 0;
int index = 0;
int startMillis = 0;
va_list args;
memset(recv_buf, 0, sizeof(recv_buf));
va_start(args, p_cmd);
Serial1.printf(p_cmd, args);
Serial.printf(p_cmd, args);
va_end(args);
delay(200);
startMillis = millis();
if (p_ack == NULL)
{
return 0;
}
do
{
while (Serial1.available() > 0)
{
ch = Serial1.read();
recv_buf[index++] = ch;
Serial.print((char)ch);