Kato Gangstad
153 lines
3.5 KiB
C++
153 lines
3.5 KiB
C++
/**
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* @file
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* @brief BACnet/IP application entry point for ESP32 PlatformIO environments
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* @author Kato Gangstad
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*/
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#include <Arduino.h>
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#include <cstring>
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#if !defined(USE_M5STAMPLC_IO) || (USE_M5STAMPLC_IO)
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#include <M5StamPLC.h>
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#endif
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#include <WiFi.h>
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#if defined(USE_ETH_INTERFACE) && (USE_ETH_INTERFACE)
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#include <ETH.h>
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#endif
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#ifndef PLC_INPUT_ACTIVE_LOW
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#define PLC_INPUT_ACTIVE_LOW 0
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#endif
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#ifndef USE_M5STAMPLC_IO
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#define USE_M5STAMPLC_IO 1
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#endif
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#ifndef USE_ETH_INTERFACE
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#define USE_ETH_INTERFACE 0
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#endif
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#ifndef WIFI_SSID
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#define WIFI_SSID ""
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#endif
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#ifndef WIFI_PASS
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#define WIFI_PASS ""
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#endif
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#ifndef BACNET_IP_PORT
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#define BACNET_IP_PORT 47808
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#endif
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extern "C" {
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#include "bacnet_app.h"
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}
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/**
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* @brief Bring up the selected WiFi or Ethernet interface
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*/
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static void wifi_connect(void)
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{
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#if USE_ETH_INTERFACE
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Serial.println("[ETH] Starting Ethernet...");
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if (!ETH.begin()) {
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Serial.println("[ETH] ETH.begin() failed");
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return;
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}
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unsigned long start = millis();
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while (!ETH.linkUp() && ((millis() - start) < 15000UL)) {
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delay(200);
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Serial.print('.');
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}
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Serial.println();
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if (ETH.linkUp()) {
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Serial.printf(
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"[ETH] Link up. IP: %s\n", ETH.localIP().toString().c_str());
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} else {
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Serial.println("[ETH] Link timeout");
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}
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#else
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if (strlen(WIFI_SSID) == 0) {
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Serial.println("[WIFI] SSID not configured; skipping WiFi connect");
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return;
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}
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Serial.printf("[WIFI] Connecting to SSID: %s\n", WIFI_SSID);
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WiFi.mode(WIFI_STA);
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WiFi.begin(WIFI_SSID, WIFI_PASS);
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unsigned long start = millis();
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while ((WiFi.status() != WL_CONNECTED) && ((millis() - start) < 15000UL)) {
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delay(200);
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Serial.print('.');
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}
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Serial.println();
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if (WiFi.status() == WL_CONNECTED) {
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Serial.printf(
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"[WIFI] Connected. IP: %s\n", WiFi.localIP().toString().c_str());
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} else {
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Serial.printf(
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"[WIFI] Connect timeout. status=%d\n", (int)WiFi.status());
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}
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#endif
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}
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/**
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* @brief Initialize the BACnet/IP application and selected board profile
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*/
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void setup(void)
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{
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Serial.begin(115200);
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delay(100);
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Serial.println("[BOOT] Mode: BACnet/IP");
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Serial.printf("[BOOT] BACnet UDP Port: %u\n", (unsigned)BACNET_IP_PORT);
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#if USE_ETH_INTERFACE
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Serial.println("[BOOT] Network: Ethernet");
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#else
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Serial.println("[BOOT] Network: WiFi");
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#endif
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#if USE_M5STAMPLC_IO
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Serial.println("[BOOT] Board profile: M5StamPLC I/O enabled");
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M5StamPLC.begin();
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#else
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Serial.println("[BOOT] Board profile: Generic/ESP32-PoE (M5 I/O disabled)");
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#endif
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wifi_connect();
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Serial.println("[BOOT] Init BACnet app...");
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bacnet_app_init();
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Serial.println("[BOOT] BACnet/IP ready");
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}
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/**
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* @brief Run the main BACnet/IP application loop
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*/
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void loop(void)
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{
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#if USE_M5STAMPLC_IO
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M5StamPLC.update();
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for (uint8_t i = 0; i < bacnet_app_input_count(); i++) {
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bool state = M5StamPLC.readPlcInput(i);
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#if PLC_INPUT_ACTIVE_LOW
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state = !state;
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#endif
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bacnet_app_input_set(i, state);
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}
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for (uint8_t i = 0; i < bacnet_app_relay_count(); i++) {
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M5StamPLC.writePlcRelay(i, bacnet_app_relay_get(i));
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}
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bacnet_app_temperature_set(M5StamPLC.getTemp());
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bacnet_app_free_heap_kb_set((float)ESP.getFreeHeap() / 1024.0f);
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#else
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bacnet_app_temperature_set(0.0f);
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bacnet_app_free_heap_kb_set((float)ESP.getFreeHeap() / 1024.0f);
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#endif
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bacnet_app_tick();
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delay(1);
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}
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