Breakout board · rev 1.0

S.M.B.B.

Surface Mount Breakout Board: everything on one board, made complete by the board maker.

Buy now · Coming soon Get the launch alert

What it does

The S.M.B.B. does the Standard board's job and its daughter boards' jobs too, with chips in place of plug-in modules. The analog converters, four thermocouple chips for the head temperatures, the sound amplifier, the clock and the angle sensor are all on the board.

Order it fully assembled, with nothing to solder, or with only its 25 through-hole parts (the plugs, header, fuse holders and switches) left for you: an evening's work.

The Standard board's plugs in the same places, so the same wiring harness fits
Head temperatures, parking brake, angle sensor, clock and amplifier built in: no daughter boards needed
Clock battery (CR2032) on leads, for a Pi 4 or a Pi 5
Mounts upright in the dash panel, its parts facing the driver
Fuel sense switch, spare input, and a status light for every supply and switch

What it connects to

Plug	Connects to
Shared plugs	POWER IN, TO 5V BUCK, TO PI, SWITCHES, FUEL, COIL, TACH, LIGHTS, HORN, BUTTON POD and TEMP PROBE, wired exactly as on the Standard board
CYL 1 to CYL 4	Each cylinder's Type K thermocouple, straight into the board
PARK BRAKE + SPARE	The parking brake switch, plus three spare inputs for future senders
SPEAKER	The cab speaker (4 Ω), driven by the amplifier on the board
RTC BATTERY	The clock's CR2032 cell, in a covered holder on leads
TILT	The optional GPS board (the angle sensor itself is on the board)
SPARE	A free Raspberry Pi input, for something you add later