One of the uses of a microcontroller is that it can control time for a digital output or process. This feature can be used to control traffic lights, garden sprinkler timers and fish feeders or other applications. Figure Q3a shows a circuit that can measure an analogue reading and display it on the LCD. RV1 1k 13 U1 OSC1/CLKIN OSC2/CLKOUT RBO/INT 33 34 RB1 35 RB2 36 RADIANO RB3/PGM 37 RA1/AN1 RB4 38 RA2/AN2/VREF-/CVREF RB5 RA3/AN3/VREF+ 39 RB6/PGC 40 RA4/TOCKV/C1OUT RB7/PGD RAS/AN4/SS/C2OUT RCO/T 10SO/T1CKI 15 REQ/AN5/RD RC1/T10SI/CCP2 RE1/AN6/WR RC2/CCP1 17 REZIANZICS RC3/SCK/SCL 23 RC4/SDV/SDA MCLR/Vpp/THV RC5/SDO RC6/TX/CK RC7/RX/DT RDO/PSPO 19 20 RD1/PSP1 RD2/PSP2 RD3/PSP3 RD4/PSP4 RD5/PSP5 RD6/PSP6 RD7/PSP7 PIC16F877A - LCD1 LM016L 8888885 Figure Q3(a) a) The connection for LCD display is not sufficient for the real environment. Suggest modifications on the correct connection to be applied in the real situation. You can add components, if needed.