The Click-Clock Board is a digital 7-segment display clock I developed using KiCad, Verilog, MyHDL, Logisim, Icarus Verilog, GTKWave, Espresso, a solderless breadboard, and a Spartan 6-based FPGA board called Mojo V3.
The first PCB prototype was hand soldered by me using 0.5mm diameter lead-free solder. I am planning to reflow the next board using solder paste for a much nicer assembly.
Figure 1: Click-Clock Board Layout (v0.2)
Figure 2: Front of the First Prototype (v0.1)
Figure 3: Back of the First Prototype (v0.1)
Figure 4: Complete and Working Breadboard Proof-of-Concept of the Click-Clock Board
Figure 5: Working Logisim Simulation of the Click-Clock Board
Figure 6: GTKWave Seconds Waveform of the Click-Clock Board’s Verilog Simulation
Figure 7: GTKWave Minutes Waveform of the Click-Clock Board’s Verilog SImulation
Figure 8: GTKWave Hours Waveform of the Click-Clock Board’s Verilog Simulation
Eric Kuzmenko 