I configured this breadboard setup to run a life cycle test of the true bypass relay system that I sell. Over 100,000 cycles per board without a glitch!
I used an Arduino with a Proto Shield, to which I had mounted a small red breadboard. On the breadboard I placed a pair of transistors to provide the switch signal to the two bypass boards that were being tested. Also, a blue LED was added to indicate that the test was in progress.
The bypass boards are jumpered to a separate breadboard, which has a pair of LEDS for each to indicate status.
I then wrote a simple program for the Arduino to pulse the switch wire of each bypass board once per second for 100,000 cycles. The bypass relays toggle and the LEDs change status when the signal from the Arduino is detected. This made it easy to watch the breadboard and see the relay boards switching in unison. At any point if a relay had missed a switch cycle, the LED pairs would have been out of sync and the condition easily seen.
I would enter the lab and check the progress every hour by watching the LEDs pulsing once per second. If you get close to the pc boards, you can also hear the tiny click that the relays make when they switch. The top LEDs on each side are actually wired through their relays to verify that they are making contact.
After 100,000 cycles, the relay bypass boards had performed flawlessly. They never got out of sync, which indicates that no switch cycles were missed. Nor did I see anything but consistent pulsing of the LEDs.
You may have noted that the relays on the bypass boards are different colors. This is because they are parts from different manufacturers. The dark blue relay on the left board is a Panasonic and the white relay on the right bypass pcb is a Fujitsu dpdt. The AMZ micro-controlled bypass has been tested with 5 different manufacturer’s relays and performs well with all of them.
I am satisfied that the system is reliable and functions consistently as designed. If you hit the switch of a pedal 20 times per show, and played 365 shows per year, the 100,000 cycles is the equivalent of more that 13.7 years of pedal use.