This project was designed and constructed as enhancement to the 0-30V Stabilized Power Supply Project with the DIY electronics hobbyist in mind. The circuit uses a single PIC Microchip to perform the Voltage, Current and Temperature conversions and display functions. The PCB Board uses large tracks and can easily be made using the “press-n-peel” method and a hobby drill. Components should be readily available anywhere in the world. Furthermore the hex files are available for the PIC16F877A and the PIC16F887 and the display can either be LCD or LED.
Digital Volt and Amp Meter with Temperature Control - [Link]