fix(zigbee): Increase timeout and add semaphore to begin

Author: P-R-O-C-H-Y

libraries/Zigbee/examples/Zigbee_Temperature_Sensor/Zigbee_Temperature_Sensor.ino

@@ -70,11 +70,14 @@ void setup() {
   // Add endpoint to Zigbee Core
   Zigbee.addEndpoint(&zbTempSensor);
 
+  Serial.println("Starting Zigbee...");
   // When all EPs are registered, start Zigbee in End Device mode
   if (!Zigbee.begin()) {
     Serial.println("Zigbee failed to start!");
     Serial.println("Rebooting...");
     ESP.restart();
+  } else {
+    Serial.println("Zigbee started successfully!");
   }
   Serial.println("Connecting to network");
   while (!Zigbee.connected()) {

libraries/Zigbee/src/ZigbeeCore.cpp

@@ -6,7 +6,7 @@
 #include "ZigbeeHandlers.cpp"
 #include "Arduino.h"
 
-#define ZB_INIT_TIMEOUT 6000 // 6 seconds
+#define ZB_INIT_TIMEOUT 10000 // 10 seconds
 
 extern "C" void zb_set_ed_node_descriptor(bool power_src, bool rx_on_when_idle, bool alloc_addr);
 static bool edBatteryPowered = false;
@@ -34,6 +34,7 @@ static esp_err_t zb_action_handler(esp_zb_core_action_callback_id_t callback_id,
 
 bool ZigbeeCore::begin(esp_zb_cfg_t *role_cfg, bool erase_nvs) {
   if (!zigbeeInit(role_cfg, erase_nvs)) {
+    log_e("ZigbeeCore begin failed");
     return false;
   }
   _role = (zigbee_role_t)role_cfg->esp_zb_role;
@@ -69,7 +70,10 @@ bool ZigbeeCore::begin(zigbee_role_t role, bool erase_nvs) {
     }
     default: log_e("Invalid Zigbee Role"); return false;
   }
-  return status;
+  if(!status || xSemaphoreTake(lock, ZB_INIT_TIMEOUT) != pdTRUE) {
+    log_e("ZigbeeCore begin failed or timeout");
+  }
+  return started();
 }
 
 void ZigbeeCore::addEndpoint(ZigbeeEP *ep) {