PE4302
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A few files for the PE4302 Variable attenuator controller project, the PE4302 is available built from ebay this project is to control it
File:PE4302 Attenuator.pdf
File:PE4302 LCD Schematic V1.1.pdf
File:PE4302 LCD template.pdf
File:PE4302 Schematic Vero 3V3 v11.pdf
File:PE4302 Schematic Vero 5V v11.pdf
File:PE4302 LCD PARTS.xls
The .hex file for people to download is here File:PE4302 Serial Controller V4.HEX
Below is a view of the lid removed to show DIP switches 1 and 2 are turned off, solder removed from pads J5 and J6 and added to J4 to ready the attenuator for serial control with the above project. Photo :- G4KLB
A video demonstrating the attenuator and controller is here.