Introduction
The purpose of this circuit is to read analog voltage from RA2, convert it to an ADC value, calculate the voltage, and display it on the three seven segments. The power that drives the circuit has a LM7805 regulator. On the input side, there's a voltage divider.
This is the circuit for this program.
Schematic
Part list
Reference | Value | Library | Library Ref |
---|---|---|---|
U2 | PIC16F690-ISO | MCU_Microchip_PIC16 | PIC16F690-ISO |
U5 | HDSP-7503 | Display_Character | HDSP-7503 |
U4 | HDSP-7503 | Display_Character | HDSP-7503 |
U3 | HDSP-7503 | Display_Character | HDSP-7503 |
Q3 | BC547 | Transistor_BJT | BC547 |
Q2 | BC547 | Transistor_BJT | BC547 |
Q1 | BC547 | Transistor_BJT | BC547 |
R6 | 120R | Device | R |
R5 | 120R | Device | R |
R4 | 120R | Device | R |
R3 | 10K | Device | R |
Y1 | Crystal | Device | Crystal |
C2 | 18pF | Device | C |
C5 | 18pF | Device | C |
C8 | 0.01uF | Device | C |
C4 | 0.1uF | Device | C |
R1 | 100K | Device | R |
R2 | 10K | Device | R |
J2 | Screw_Terminal_01x02 | Connector | Screw_Terminal_01x02 |
J4 | Conn_01x11 | Connector_Generic | Conn_01x11 |
J3 | Conn_01x05 | Connector_Generic | Conn_01x05 |
U1 | LM7805_TO220 | Regulator_Linear | LM7805_TO220 |
J1 | Screw_Terminal_01x02 | Connector | Screw_Terminal_01x02 |
C1 | 100uF | Device | CP |
C3 | 0.1uF | Device | C |
C6 | 0.1uF | Device | C |
C7 | 100uF | Device | CP |
D1 | 1N4004 | Diode | 1N4004 |
Board layout
Under construction