9. Given a sensor with Rout = 10kohms that outputs voltage in the range +1.25V to +4.25V. Show the complete interface circuitry needed to connect it to the A/D unit built-in to the HC12 Controller. 10. Write the lines of C code needed to configure the A/D converter, start the conversion, and output a hex integer in the range 0x0000 to 0xFFFF to the variable called data1 that is proportional to airflow input (0.0 to 1.0 litre/min). No further conversion is required.