Fix Serial1.write(0)

teensy4/HardwareSerial.h

@@ -189,6 +189,11 @@ public:
 	static uint8_t serial_event_handlers_active;
 
 	using Print::write; 
+	size_t write(unsigned long n) { return write((uint8_t)n); }
+	size_t write(long n) { return write((uint8_t)n); }
+	size_t write(unsigned int n) { return write((uint8_t)n); }
+	size_t write(int n) { return write((uint8_t)n); }
+
 	// Only overwrite some of the virtualWrite functions if we are going to optimize them over Print version
 
 	/*