I don't have awesome soldering skills and I didn't think I could reverse engineer the stationary bike's control board, but I did think of something. I designed and built a small board with a microcontroller and a reed relay (low power relay) to trigger a button on the console every 3 minutes. The microcontroller also allows me to easily trigger the "enter" button exactly 3 times in a row, which changes a setting and then restores it to its original value, essentially performing a no-op which only serves to keep the bike's control board from going into sleep mode.