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LoRaモジュール評価ボード E220-900T22S(JP)-EV1を使ったLoRa通信受信側 M5AtomLite使用
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#include <Arduino.h> | |
#include <M5Unified.h> | |
#include <WiFi.h> | |
#include <HTTPClient.h> | |
#define LORA_M0_PIN 21 | |
#define LORA_M1_PIN 25 | |
#define LORA_RX_PIN 23 | |
#define LORA_TX_PIN 19 | |
// change here for your environment | |
#define SSID "... your wifi ssid .." | |
#define PASSWORD "...your wifi password ..." | |
#define URL "... google spread sheet app script deply url ..." | |
#define REC_BUF_SIZE 128 | |
char gps_rec_buf[REC_BUF_SIZE]; | |
static char gps_rec_buf_idx = 0; | |
static double rec_time; | |
static double latitude; | |
static double longitude; | |
void setLoraMode(int mode) { | |
pinMode(LORA_M0_PIN, OUTPUT); | |
pinMode(LORA_M1_PIN, OUTPUT); | |
digitalWrite(LORA_M0_PIN, mode & 0x1 != 0); | |
digitalWrite(LORA_M1_PIN, mode & 0x2 != 0); | |
} | |
static void send_to_spreadsheet(char *str) { | |
char buf[REC_BUF_SIZE]; | |
strncpy(buf, str, REC_BUF_SIZE); | |
int i = 0; | |
char *pt; | |
pt = strtok(buf, ","); | |
while (pt != NULL) { | |
//Serial.println(pt); | |
switch (i) { | |
case 0: | |
rec_time = atof(pt); | |
case 1: | |
latitude = atof(pt); | |
break; | |
case 2: | |
longitude = atof(pt); | |
break; | |
default: | |
break; | |
} | |
pt = strtok(NULL, ","); | |
i++; | |
} | |
sprintf(buf, "{\"time\":%f,\"latitude\":%f,\"longitude\":%f}", rec_time, latitude, longitude); | |
Serial.println(buf); | |
HTTPClient http; | |
http.begin(URL); | |
http.addHeader("Content-Type", "application/json"); | |
int status_code = http.POST((uint8_t*)buf, strlen(buf)); | |
if( status_code == 200 ){ | |
Serial.println("success"); | |
} | |
http.end(); | |
} | |
void setup() { | |
M5.begin(); | |
Serial.begin(115200); | |
Serial2.begin(9600, SERIAL_8N1, LORA_RX_PIN, LORA_TX_PIN); | |
setLoraMode(0); | |
WiFi.begin(SSID, PASSWORD); | |
while (WiFi.status() != WL_CONNECTED) { | |
delay(100); | |
} | |
Serial.println(WiFi.localIP()); | |
} | |
void loop() { | |
if (Serial2.available()) { | |
int ch = Serial2.read(); | |
if (gps_rec_buf_idx < REC_BUF_SIZE) { | |
gps_rec_buf[gps_rec_buf_idx++] = ch; | |
} | |
Serial.write(ch); | |
// 1行受信 | |
if (ch == '\n') { | |
gps_rec_buf[gps_rec_buf_idx++] = '\0'; | |
gps_rec_buf_idx = 0; | |
send_to_spreadsheet(gps_rec_buf); | |
} | |
} | |
delay(10); | |
} |
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[env:m5stack-atom] | |
platform = espressif32 | |
board = m5stack-atom | |
framework = arduino | |
monitor_speed = 115200 | |
lib_deps = | |
m5stack/M5Unified@^0.1.4 |
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