Four Pedals, One Claude Code Review Loop

Pedal Four is a four-pedal USB foot switch with its driver built into the device itself, so it works the moment you plug it in. The extra pedal, compared with a three-pedal unit, is room for one more hands-free action on top of the accept, reject and dictate loop that carries most of a Claude Code review session. It's a wide, flat metal plate that sits lower and longer than a three-pedal unit, so you can rest a foot between two pedals without accidentally triggering either, useful if you keep one foot parked on the switch through a whole review session.

What does the fourth pedal buy you over Pedal Three?

The core Claude Code loop, brief, wait, review, accept or reject, only strictly needs two or three actions. The fourth pedal is where you put whatever you find yourself reaching for the keyboard to do right after a review decision: running your test suite, moving to the next file in a diff, or whatever step you repeat immediately before or after judging Claude Code's output. It is one more slot than the three-pedal version, not a different mechanism.

Is it really plug and play?

Yes, the driver lives on the Pedal Four device itself rather than needing software installed on your machine, so it works immediately on whatever platform you plug it into. Programming what each pedal sends is a separate step from simply using it; the pedal substitutes for a mouse click or any keystroke, and works with any terminal or editor, including a Claude Code session, because it types rather than talking to Claude Code's process directly.

Is this really a coding accessory, or something else too?

Both, honestly. Four pedals is also the number streamers use for scene switch, mute and record, and the specs list OBS scene control alongside code review as a typical use. If you only care about the Claude Code half, you'll use three of the four pedals for accept, reject and dictate, and the fourth for whatever secondary action fits your workflow; the streaming use case is not a reason to avoid it, just a reason the fourth pedal exists.

Who should buy the three-pedal unit instead?

If you can't immediately name what the fourth action would be, buy Pedal Three and save the difference. An idle pedal is not a feature. It is also worth knowing why foot pedals cost more than they look like they should: they carry a much higher US duty rate than a macropad pays, and that is priced in openly rather than hidden in a markup.

For the keys-not-feet version of the same accept/reject problem, see the KM16 Macropad guide, or browse the rest of the hardware tagged Claude Code.