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Merge pull request #3069 from cesanta/beduino
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add test for ESP32
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scaprile authored Mar 5, 2025
2 parents 25d20b7 + 537ba64 commit 4258f62
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48 changes: 28 additions & 20 deletions test/arduino/Makefile
Original file line number Diff line number Diff line change
@@ -1,4 +1,6 @@
PROJECTS ?= arduino-xiao #arduino-nano #arduino-esp32 arduino-teensy41
# arduino-nano fails on the flash size department, need to reduce unused function footprint (sha256, sha384 ?)
# teensy41 board management seems to be for 2.0
PROJECTS ?= seeeduino-xiao esp32
ROOT ?= $(realpath $(CURDIR)/../..)
ARD ?= $(realpath $(CURDIR))

Expand All @@ -11,38 +13,44 @@ arduino:
mv arduino-* $@
./arduino/arduino --pref "compiler.warning_level=all" --save-prefs

arduino-xiao-board:
seeeduino-xiao-board:
./arduino/arduino --pref "boardsmanager.additional.urls=https://files.seeedstudio.com/arduino/package_seeeduino_boards_index.json" --save-prefs
./arduino/arduino --install-boards Seeeduino:samd
touch seeeduino-xiao-board

#esp32-board:
# ./arduino/arduino --pref "boardsmanager.additional.urls=https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json" --save-prefs
# ./arduino/arduino --install-boards esp32:esp32
#
#teensy-board:
# ./arduino/arduino --pref "boardsmanager.additional.urls=https://www.pjrc.com/teensy/package_teensy_index.json" --save-prefs
# ./arduino/arduino --install-boards teensy:avr
esp32-board:
./arduino/arduino --pref "boardsmanager.additional.urls=https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json" --save-prefs
./arduino/arduino --install-boards esp32:esp32
touch esp32-board

arduino-xiao: arduino arduino-xiao-board
teensy-board:
./arduino/arduino --pref "boardsmanager.additional.urls=https://www.pjrc.com/teensy/package_teensy_index.json" --save-prefs
./arduino/arduino --install-boards teensy:avr
touch teensy-board

seeeduino-xiao: arduino seeeduino-xiao-board
cd $(ROOT)/tutorials/mqtt/mqtt-client/arduino/sim800-mqtt && $(ARD)/arduino/arduino --verbose --verify --board Seeeduino:samd:seeed_XIAO_m0 sim800-mqtt.ino
cd $(ROOT)/tutorials/http/http-server/arduino/w5500-http && $(ARD)/arduino/arduino --verbose --verify --board Seeeduino:samd:seeed_XIAO_m0 w5500-http.ino
cd $(ROOT)/tutorials/mqtt/mqtt-client/arduino/w5500-mqtt && $(ARD)/arduino/arduino --verbose --verify --board Seeeduino:samd:seeed_XIAO_m0 w5500-mqtt.ino

arduino-nano: arduino
cd $(ROOT)/tutorials/http/http-server/arduino/w5500-http && $(ARD)/arduino/arduino --pref compiler.cpp.extra_flags=-DMG_ENABLE_LOG=0 --verbose --verify --board arduino:avr:nano w5500-http.ino
cd $(ROOT)/tutorials/mqtt/mqtt-client/arduino/w5500-mqtt && $(ARD)/arduino/arduino --pref compiler.cpp.extra_flags=-DMG_ENABLE_LOG=0 --verbose --verify --board arduino:avr:nano w5500-mqtt.ino
cd $(ROOT)/tutorials/mqtt/mqtt-client/arduino/nano-w5500-mqtt && $(ARD)/arduino/arduino --pref compiler.cpp.extra_flags=-DMG_ENABLE_LOG=0 --verbose --verify --board arduino:avr:nano nano-w5500-mqtt.ino

esp32: arduino esp32-board
cd $(ROOT)/tutorials/mqtt/mqtt-client/arduino/esp32-mqtt && $(ARD)/arduino/arduino --verbose --verify --board esp32:esp32:node32s esp32-mqtt.ino
# Needs a board with 'LED_BUILTIN', yet somehow invocation is missing that definition (lack of include somehow amended by the IDE)
#cd $(ROOT)/tutorials/http/http-server/arduino/esp32-http && $(ARD)/arduino/arduino --verbose --verify --board esp32:esp32:esp32 esp32-http.ino

#arduino-esp32: arduino esp32-board
# cd $(ROOT)/tutorials/http/http-server/arduino/esp32-http && $(ARD)/arduino/arduino --verbose --verify --board esp32-http.ino
# cd $(ROOT)/tutorials/mqtt/mqtt-client/arduino/esp32-mqtt && $(ARD)/arduino/arduino --verbose --verify --board esp32-mqtt.ino
#
#arduino-teensy41: arduino teensy-board
# cd $(ROOT)/tutorials/http/http-server/arduino/teensy41-http && $(ARD)/arduino/arduino --verbose --verify --board teensy41-http.ino
teensy41: arduino teensy-board
cd $(ROOT)/tutorials/http/http-server/arduino/teensy41-http && $(ARD)/arduino/arduino --verbose --verify --board teensy41-http.ino



clean:
rm -rf arduino

cleanall: clean #otherwise some parts of xiao-board installation will fail as already installed
rm -rf ~/.arduino* ~/.oracle_jre_usage
# Board support gets installed in your home dir.
# We fool make satisfying a dependency using touch above, otherwise board installation fails as it is already installed
# To really get rid of the installed board stuff run 'make cleanall'
cleanall: clean
rm -rf ~/.arduino* ~/.oracle_jre_usage seeeduino-xiao-board esp32-board teensy-board
Original file line number Diff line number Diff line change
@@ -1,3 +1,5 @@
#pragma once

#include "Arduino.h"

#define MG_ARCH MG_ARCH_ESP32
Original file line number Diff line number Diff line change
@@ -0,0 +1,19 @@
#pragma once

#include "Arduino.h"

#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <time.h>

#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

103 changes: 103 additions & 0 deletions tutorials/mqtt/mqtt-client/arduino/nano-w5500-mqtt/w5500-mqtt.ino
Original file line number Diff line number Diff line change
@@ -0,0 +1,103 @@
#include <SPI.h>
#include "mongoose.h"

#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

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

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;
}

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);
}

// 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;
}

// 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()));
}

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;
}
}

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);
}
}

void setup() {
Serial.begin(115200); // Initialise serial
while (!Serial) delay(50); // for debug output

SPI.begin(); // Iniitialise SPI
pinMode(SS_PIN, OUTPUT); // to communicate with W5500 Ethernet module
pinMode(LED_PIN, OUTPUT); // Initialise LED

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
}

void loop() {
mg_mgr_poll(&mgr, 1); // Process network events
reconnect_if_not_connected(); // Reconnect to MQTT server if needed
}
Original file line number Diff line number Diff line change
Expand Up @@ -16,5 +16,5 @@
#define MG_ENABLE_CUSTOM_MILLIS 1
#define MG_ENABLE_CUSTOM_RANDOM 1
// #define MG_TLS MG_TLS_BUILTIN
#define MG_IO_SIZE 128
#define MG_IO_SIZE 256

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