add README with Timer usage overview

README.md

@@ -0,0 +1,12 @@
+## Hardware usage
+
+### Timers
+
+|Timer|  Type  | Usage                         | Mode                   | used ISRs      | Output connected
+|-----|--------|-------------------------------|------------------------|----------------|------------------
+|  0  |  8 bit | Millis Tick Timer             | 2 (CTC)                | COMPA          | -
+|  1  | 16 bit |                               |                        |                |
+|  2  |  8 bit | Modbus Tick Timer             | 2 (CTC)                | COMPA          | -
+|  3  | 16 bit | Step Signal Abzugsrolle       | 8 (PWM, Phase & Freq.) | -              | OC3B / PE4
+|  4  | 16 bit | Step Signal Taenzer           | 8 (PWM, Phase & Freq.) | OVF, ~~COMPA~~ | OC4A / PH3
+|  5  | 16 bit | Step Signal Rotation Spule    | 8 (PWM, Phase & Freq.) | -              | OC5C / PL5

main.c

@@ -90,7 +90,7 @@ void send_info(void){
     mqtt_pub(&mqtt_client, "/Filamentanlage/05_Abzug/state/speicher/pos", msg, strlen(msg));
 
     sprintf(msg, "%ld", millis()/1000);
-    mqtt_pub(&mqtt_client, "/Filamentanlage/04_Messmodul/state/uptime", msg, strlen(msg));
+    mqtt_pub(&mqtt_client, "/Filamentanlage/04_Abzug/state/uptime", msg, strlen(msg));
 }
 
 
@@ -103,15 +103,14 @@ int main()
     kraftsensor_init();
 
     printf("moin!\n\r");
-    //timer0_init();
+
-    timer3_init();
+    timer3_init(); //abzug
-    timer4_init();
+    timer4_init(); //taenzer
-    timer5_init();
+    timer5_init(); //spule
 
     ioHelperInitBuffer();
     ioHelperIoConf();
 
-
     //Wizchip WIZ5500 Ethernet initialize
     IO_LIBRARY_Init(); //After that ping must working
     print_network_information();
@@ -134,7 +133,7 @@ int main()
     data.willFlag = 0;
     data.MQTTVersion = 4;//3;
     data.clientID.cstring = (char*)"controllino";
-    data.username.cstring = (char*)"Messmodul";
+    data.username.cstring = (char*)"Aufspuleinheit";
     data.password.cstring = (char*)"\0";
     data.keepAliveInterval = 10;
     data.cleansession = 1;
@@ -155,7 +154,6 @@ int main()
 #endif
 
     ioHelperSetBit(outStates, RELAY_INTERLOCK,  1);
-
     ioHelperSetBit(outStatesBlinking,  LED_PLC_OK,  1);
 
     uint32_t timer_blink_outs = millis();