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feat(firmware): implement smart configuration for WiFi setup and connection

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This commit is contained in:
Timothy Yin
2025-11-24 21:02:04 +08:00
parent cc6641b526
commit d583370c6d
3 changed files with 228 additions and 50 deletions
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110
hardware/firmware/src/main.cpp
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@@ -10,6 +10,7 @@
#include <MFRC522.h>
#include "esp_system.h"
#include "smartconfig.h"
#include "config.h"
/* LED State Enum */
@@ -30,6 +31,9 @@ static volatile unsigned long s_blink_last_time = 0;
static volatile bool s_blink_on = false;
static const unsigned long BLINK_INTERVAL = 200; // 200ms blink interval
uint8_t mac[6];
char cpSerial[13];
struct mg_mgr mgr;
// MicroOcpp::MOcppMongooseClient *client = nullptr;
@@ -68,6 +72,7 @@ static void WiFiEvent(WiFiEvent_t event)
break;
case ARDUINO_EVENT_WIFI_STA_CONNECTED:
Serial.println("WiFi connected");
Serial.printf("- Hostname: %s\n", WiFi.getHostname());
break;
case ARDUINO_EVENT_WIFI_STA_GOT_IP:
Serial.println("Got IP: " + WiFi.localIP().toString());
@@ -128,13 +133,19 @@ void updateLED()
void setup()
{
// Get MAC address and set as Charge Point Serial Number
esp_efuse_mac_get_default(mac);
snprintf(cpSerial, sizeof(cpSerial),
"%02X%02X%02X%02X%02X%02X",
mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
// reset LED
leds[0] = Rgb{0, 0, 0};
leds.show();
// initialize Serial
Serial.begin(115200);
delay(1000);
Serial.println("\n\nInitializing firmware...");
Serial.printf("\n\n%s(%s) made by %s\n", CFG_CP_MODAL, cpSerial, CFG_CP_VENDOR);
Serial.println("Initializing firmware...\n");
// Initialize LED
s_led_state = LED_INITIALIZING;
@@ -142,73 +153,72 @@ void setup()
s_blink_on = false;
// Initialize WiFi
WiFi.onEvent(WiFiEvent);
WiFi.mode(WIFI_STA);
WiFi.begin(CFG_WIFI_SSID, CFG_WIFI_PASS);
Serial.println("WiFi connecting...");
// WiFi.onEvent(WiFiEvent);
// WiFi.mode(WIFI_STA);
// WiFi.setHostname((CFG_CP_MODAL + String("_") + String(cpSerial).substring(String(cpSerial).length() - 6)).c_str());
// WiFi.begin(CFG_WIFI_SSID, CFG_WIFI_PASS);
// Wait for WiFi connection with LED updates
int retry = 0;
while (WiFi.status() != WL_CONNECTED && retry < 20)
{
delay(200);
updateLED(); // Update LED while waiting for WiFi
Serial.print(".");
retry++;
}
Serial.println();
// int retry = 0;
// while (WiFi.status() != WL_CONNECTED && retry < 20)
// {
// delay(200);
// updateLED(); // Update LED while waiting for WiFi
// Serial.print(".");
// retry++;
// }
// Serial.println();
if (WiFi.status() == WL_CONNECTED)
if (!connectToSavedWiFi())
{
Serial.println("WiFi connected");
Serial.println("IP address: " + WiFi.localIP().toString());
s_led_state = LED_WIFI_CONNECTED;
}
else
{
Serial.println("WiFi connection failed");
s_led_state = LED_ERROR;
String ssidPrefix = CFG_CP_MODAL + String("_") + String(cpSerial).substring(String(cpSerial).length() - 6);
char ssidPrefixBuffer[32];
strcpy(ssidPrefixBuffer, ssidPrefix.c_str());
startSmartConfig(ssidPrefixBuffer, cpSerial);
}
mg_mgr_init(&mgr);
MicroOcpp::MOcppMongooseClient *client = new MicroOcpp::MOcppMongooseClient(&mgr, CFG_OCPP_BACKEND, CFG_CP_IDENTIFIER, CFG_AUTHORIZATIONKEY, "", MicroOcpp::makeDefaultFilesystemAdapter(MicroOcpp::FilesystemOpt::Use_Mount_FormatOnFail), MicroOcpp::ProtocolVersion(1, 6));
uint8_t mac[6];
esp_efuse_mac_get_default(mac); // read hardware MAC from efuse
char cpSerial[13];
snprintf(cpSerial, sizeof(cpSerial),
"%02X%02X%02X%02X%02X%02X",
mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
Serial.printf("Charge Point Serial Number: %s\n", cpSerial);
mocpp_initialize(*client, ChargerCredentials(CFG_CP_MODAL, CFG_CP_VENDOR, "1.0.0", cpSerial, nullptr, nullptr, CFG_CB_SERIAL, nullptr, nullptr), MicroOcpp::makeDefaultFilesystemAdapter(MicroOcpp::FilesystemOpt::Use_Mount_FormatOnFail));
}
void loop()
{
if (!smartconfig_done)
{
dnsServer.processNextRequest();
server.handleClient();
}
if (should_reboot)
{
Serial.println("Rebooting...");
delay(1000);
ESP.restart();
}
mg_mgr_poll(&mgr, 10);
mocpp_loop();
// Check OCPP connection status
if (s_wifi_connected)
{
auto ctx = getOcppContext();
if (ctx && ctx->getConnection().isConnected())
{
if (s_led_state != LED_OCPP_CONNECTED)
{
s_led_state = LED_OCPP_CONNECTED;
}
}
else
{
if (s_led_state != LED_WIFI_CONNECTED)
{
s_led_state = LED_WIFI_CONNECTED;
}
}
}
// if (s_wifi_connected)
// {
// auto ctx = getOcppContext();
// if (ctx && ctx->getConnection().isConnected())
// {
// if (s_led_state != LED_OCPP_CONNECTED)
// {
// s_led_state = LED_OCPP_CONNECTED;
// }
// }
// else
// {
// if (s_led_state != LED_WIFI_CONNECTED)
// {
// s_led_state = LED_WIFI_CONNECTED;
// }
// }
// }
updateLED();