feat: added sensor pairing to gateway

README.md

@@ -2,13 +2,13 @@
 
 ## Features
 
-1. Wireless touch pad sensor for ATMega 168/328 microcontrollers with nRF24L01+ transceiver.
+1. Wireless touch pad sensor for ATMega168/328 microcontrollers with nRF24L01+ transceiver.
 2. Power consumption in the sleep mode approximately 2 uA.
 3. Transmits device identifier and battery voltage level on each touch event.
 4. Battery measurement through internal ADC with 1.1 V bandgap reference.
 5. Wake-up from power-down mode by external interrupt on rising edge.
-6. Supports ATMega168, ATMega168P, ATMega168PB, ATMega328, ATMega328P, ATMega328PB.
-7. Easy installation into any standard touch pad enclosure.
+6. Automatic pairing with the gateway to obtain a device identifier stored in EEPROM.
+7. Supports ATMega168, ATMega168P, ATMega168PB, ATMega328, ATMega328P, ATMega328PB.
 
 ## Attention
 
@@ -16,6 +16,7 @@
 2. After power-on reset the first touch event may not trigger a transmission.
 3. Multi-touch is not supported, only a single touch event per transmission cycle.
 4. Changing gateway address or channel requires reflashing the microcontroller.
+5. If the gateway does not respond during pairing, the device enters permanent sleep until reset.
 
 ## Using