Summary of MULTI-VOLTAGE METER WITH PIC18F2550 PICBASIC PRO
This article describes a multi-voltage DC meter project using PIC18F2550 or PIC18F4455 microcontrollers with PicBasic Pro software. It measures 5V, 9V, and 12V DC (up to 30V) using voltage dividers for higher ranges, the onboard A/D converter without external references, and displays results on a 4-line LCD in 4-bit mode.
Parts used in the Multi-Voltage Meter:
- PIC18F2550 or PIC18F4455 Microcontroller
- LCD Display (4-line character display)
- Voltage Divider Resistors
- Xtal (Crystal Oscillator)
- Onboard A/D Converter
PIC Microcontroller with multi-voltage measurement, display (LCD) a good example for software pic basic prepared with pic18f4455 RE3, RA0, RA1, RA2, pins and the 4-channel voltage measurement can be made circuit as an example 5 …. 12V DC Voltage… Electronics Projects, Multi-Voltage Meter with PIC18F2550 Picbasic PRO “microchip projects, microcontroller projects, pic18f2550 projects, picbasic pro examples,
PIC Microcontroller with multi-voltage measurement, display (LCD) a good example for software pic basic prepared with pic18f4455 RE3, RA0, RA1, RA2, pins and the 4-channel voltage measurement can be made circuit as an example 5 …. 12V DC Voltage used higher voltages You may need to use a voltage divider resistors. Measuring DC voltage in the range from 30VDC 0VDC
PIC18F2550 VOLTAGE MONITOR CIRCUIT
To measure the voltages higher then the VCC (supply voltage of the ?C) i was thinking of using the well-known and simple voltage divider using resistors. Discover the possibilities of measuring DC voltages in a range from 0VDC to 30VDC. Use the Onboard A/D converter from the PIC18F4455 or PIC18F2550 range. Measure different DC voltages at a time. Try to do the measurement without using an external ref voltage.
– Measure: 5V DC
– Measure: 9V DC
– Measure: 12V DC
– Use Xtal
– Display the voltages on an 4-line char display in 4-bit mode
Source innovativetechnology.nl Multi-Voltage Meter picbasic pro source code schematic alternative link:
FILE DOWNLOAD LINK LIST (in TXT format): LINKS-2329.zip
Source: MULTI-VOLTAGE METER WITH PIC18F2550 PICBASIC PRO
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How can voltages higher than VCC be measured?
Use the well-known and simple voltage divider using resistors. -
What is the maximum DC voltage range measurable?
The circuit measures DC voltages in a range from 0VDC to 30VDC. -
Does this project require an external reference voltage?
No, the measurement is done without using an external ref voltage. -
Which microcontroller models are used in this project?
The project uses the PIC18F2550 or PIC18F4455 microcontrollers. -
In what mode is the LCD display operated?
The voltages are displayed on a 4-line char display in 4-bit mode. -
What specific voltages are listed as examples for measurement?
The examples include measuring 5V DC, 9V DC, and 12V DC. -
Can multiple DC voltages be measured at the same time?
Yes, you can try to measure different DC voltages at a time.

