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Merge pull request #3069 from cesanta/beduino
add test for ESP32
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tutorials/http/http-server/arduino/esp32-http/mongoose_config.h
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#pragma once | ||
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#include "Arduino.h" | ||
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#define MG_ARCH MG_ARCH_ESP32 |
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../../../../../mongoose.c |
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../../../../../mongoose.h |
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tutorials/mqtt/mqtt-client/arduino/nano-w5500-mqtt/mongoose_config.h
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#pragma once | ||
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#include "Arduino.h" | ||
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#include <errno.h> | ||
#include <stdarg.h> | ||
#include <stdio.h> | ||
#include <time.h> | ||
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#define MG_ARCH MG_ARCH_CUSTOM | ||
#define MG_ENABLE_TCPIP 1 | ||
#define MG_ENABLE_DRIVER_W5500 1 | ||
#define MG_ENABLE_TCPIP_DRIVER_INIT 0 | ||
#define MG_ENABLE_TCPIP_PRINT_DEBUG_STATS 0 | ||
#define MG_ENABLE_CUSTOM_MILLIS 1 | ||
#define MG_ENABLE_CUSTOM_RANDOM 1 | ||
#define MG_TLS MG_TLS_NONE // no room for TLS | ||
#define MG_IO_SIZE 128 | ||
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tutorials/mqtt/mqtt-client/arduino/nano-w5500-mqtt/w5500-mqtt.ino
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#include <SPI.h> | ||
#include "mongoose.h" | ||
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#define MQTT_SERVER "mqtt://broker.hivemq.com:1883" | ||
#define MQTT_SUB_TOPIC "mg/rx" // Subscribe to this topic | ||
#define MQTT_PUB_TOPIC "mg/tx" // Publish to this topic | ||
#define SS_PIN 2 // Slave select pin | ||
#define LED_PIN 21 // LED pin | ||
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struct mg_connection *mqtt_connection; | ||
struct mg_tcpip_spi spi = { | ||
NULL, // SPI metadata | ||
[](void *) { digitalWrite(SS_PIN, LOW); SPI.beginTransaction(SPISettings()); }, | ||
[](void *) { digitalWrite(SS_PIN, HIGH); SPI.endTransaction(); }, | ||
[](void *, uint8_t c) { return SPI.transfer(c); }, // Execute transaction | ||
}; | ||
struct mg_mgr mgr; // Mongoose event manager | ||
struct mg_tcpip_if mif = {.mac = {2, 0, 1, 2, 3, 5}}; // Network interface | ||
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uint64_t mg_millis(void) { | ||
return millis(); | ||
} | ||
bool mg_random(void *buf, size_t len) { // For TLS | ||
uint8_t *p = (uint8_t *) buf; | ||
while (len--) *p++ = (unsigned char) (rand() & 255); | ||
return true; | ||
} | ||
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void mqtt_publish(const char *message) { | ||
struct mg_mqtt_opts opts = {}; | ||
opts.topic = mg_str(MQTT_PUB_TOPIC); | ||
opts.message = mg_str(message); | ||
if (mqtt_connection) mg_mqtt_pub(mqtt_connection, &opts); | ||
} | ||
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// Crude function to get available RAM, for quick profiling | ||
size_t getFreeRAM(void) { | ||
size_t size = 0, increment = 100; | ||
void *p; | ||
while ((p = malloc(size)) != NULL) free(p), size += increment; | ||
return size; | ||
} | ||
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// Implement LED control over MQTT: "on" and "off" commands | ||
void handle_command(struct mg_str msg) { | ||
if (msg.len == 3 && memcmp(msg.buf, "off", 3) == 0) { | ||
digitalWrite(LED_PIN, LOW); | ||
mqtt_publish("done - off"); | ||
} else if (msg.len == 2 && memcmp(msg.buf, "on", 2) == 0) { | ||
digitalWrite(LED_PIN, HIGH); | ||
mqtt_publish("done - on"); | ||
} | ||
MG_INFO(("Free RAM: %u bytes", getFreeRAM())); | ||
} | ||
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static void mqtt_ev_handler(struct mg_connection *c, int ev, void *ev_data) { | ||
if (ev == MG_EV_MQTT_OPEN) { | ||
MG_INFO(("%lu CONNECTED to %s", c->id, MQTT_SERVER)); | ||
struct mg_mqtt_opts opts = {}; | ||
opts.topic = mg_str(MQTT_SUB_TOPIC); | ||
mg_mqtt_sub(c, &opts); | ||
MG_INFO(("%lu SUBSCRIBED to %s", c->id, MQTT_SUB_TOPIC)); | ||
} else if (ev == MG_EV_MQTT_MSG) { | ||
// Received MQTT message | ||
struct mg_mqtt_message *mm = (struct mg_mqtt_message *) ev_data; | ||
MG_INFO(("%lu RECEIVED %.*s <- %.*s", c->id, (int) mm->data.len, | ||
mm->data.buf, (int) mm->topic.len, mm->topic.buf)); | ||
handle_command(mm->data); | ||
} else if (ev == MG_EV_CLOSE) { | ||
MG_INFO(("%lu CLOSED", c->id)); | ||
mqtt_connection = NULL; | ||
} | ||
} | ||
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void reconnect_if_not_connected(void) { | ||
if (mif.state == MG_TCPIP_STATE_READY && mqtt_connection == NULL) { | ||
struct mg_mqtt_opts opts = {}; | ||
opts.clean = true; | ||
mqtt_connection = | ||
mg_mqtt_connect(&mgr, MQTT_SERVER, &opts, mqtt_ev_handler, NULL); | ||
} | ||
} | ||
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void setup() { | ||
Serial.begin(115200); // Initialise serial | ||
while (!Serial) delay(50); // for debug output | ||
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SPI.begin(); // Iniitialise SPI | ||
pinMode(SS_PIN, OUTPUT); // to communicate with W5500 Ethernet module | ||
pinMode(LED_PIN, OUTPUT); // Initialise LED | ||
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mg_mgr_init(&mgr); // Initialise Mongoose event manager | ||
mg_log_set(MG_LL_DEBUG); // Set debug log level | ||
mg_log_set_fn([](char ch, void *) { Serial.print(ch); }, NULL); // Log serial | ||
mif.driver = &mg_tcpip_driver_w5500; // Use W5500 built-in driver | ||
mif.driver_data = &spi; // Pass SPI interface to W5500 driver | ||
mg_tcpip_init(&mgr, &mif); // Initialise built-in TCP/IP stack | ||
} | ||
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void loop() { | ||
mg_mgr_poll(&mgr, 1); // Process network events | ||
reconnect_if_not_connected(); // Reconnect to MQTT server if needed | ||
} |
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