 //PubSubClient client(mqtt_server, 1883, callback, wifiClient);
 PubSubClient client(mqtt_server, 1883, wifiClient);
 
+/*
 void callback(char* topic, byte* payload, unsigned int length) {
   // handle message arrived
 }
+*/
 
 unsigned long startMills;
 

#define DEBUG_PRINT 0

// ****************
void callback(char* intopic, byte* inpayload, unsigned int length);
String macToStr(const uint8_t* mac);
void check_isr();
void hx711IsReady();

{
  m = !m;
}

void hx711IsReady()
{

