Implemented usage example

i2c/main.cpp

@@ -8,8 +8,21 @@ void i2cTest()
 	using config = Hardware<Prescaler::PRESCALER_1, 100000>;
 
 	I2c<config> twi;
+	constexpr auto I2CADDRESS = 0x4B;
 
 	twi.init();
+
+	if (!twi.start<I2CADDRESS>(false)) {
+		twi.stop();
+		return;
+	}
+
+	if (!twi.write(0x7F)) {
+		twi.stop();
+		return;
+	}
+
+	twi.stop();
 }
 
 int main()