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 Amateur Radio RF Measurements:


  RF Measurement with Graphic LCD:

Fox Delta Project "INFINITY"


 Project Infinity


A Project by:

Tony / I2TZK

Frank / K7SFN 

Dinesh / VU2FD


This project is revised to GCPUx


Project "Infinity" Concept:

For us "Infinity" simply means a device with unlimited possibilities.

Unlike present projects, where we use dedicated CPU and hardware to address a specific task, Project "INFINITY" Graphic CPU is developed keeping in mind the purpose that we use same CPU/LCD/Hardware for various Purposes or Projects.

Concept is very useful and money saving for most homebrewers as RF measurement is not  a daily requirement!!

Please see following concept block which may give you some idea of its capabilities.

With this, we build only one Graphic CPU and then add an add-on module, either analog or I2C type, load new firmware that Tony/I2TZK makes for Amateur Radio Community, and we are ready with new RF Test Equipment for our station. 


Click above picture for larger view


PC Software & PIC Firmware developed by Tony/I2TZK for Graphic CPU hardware are designed to achieve following tasks:  

Simple single Micro Controller with PIC18F4550
Graphic CPU is all that a Ham Station may invest in. Present and future Add-ONs will keep it expanded
Graphic CPU hardware details:
128 x 64 Graphic LCD with Back light control  
Stable Reference voltage.
D9 Connector for Analog and I2C Interface
LCD Backlight Control  
LCD Contrast Preset
DC12V (standalone) or USB Operation 
Expansion slot for relays and alarms (FRC16)
4 Analog and I2C for Project add-on (D9)
I2C and 8 Relay Outputs at FRC16 Extension
8 DIP Switches for CPU Config
Works with or without a PC.

Graphic CPU is also a powerful development board for those who wish to write their own PIC Firmware

Completed Graphic CPU-0613:  

Graphic CPU with SWM4 Firmware loaded

Click picture for larger view


 INFINITY Graphic CPU-0613 and ADD-ON Modules


Graphic CPU 0613 
 Graphic CPU based Projects:
SWM4: SWR Meter
AAZ-0914A: Antenna analyzer

PM4: 500MHZ RF Meter

Extension Board with Relays

 Multi-Tester Interface

 Infinity Development Source
Source code for your own firmware development
GCPU Source Code for PIC18F4550 by Tony/I2TZK
GCPU Source Code for PIC18F4550 by Tony/I2TZK


 Understanding GCPU-0613 usage:
GCPU-0613 Kit without any add-on module is available to developers who wish to design their own add-on and develop PIC firmware. 

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