M2 "Wide" Tibbits

An illustration comparing the heights of M2 "wide" Tibbits

M2 Tibbits are double-width modules occupying two "M" sockets on the standard tile. They are roughly 14 x 14 "squares" (one "square" is 2.54 x 2.54 mm).

With double the size comes the doubled internal space and I/O capacity. M2 modules have eight I/O lines. They are used for "grander things" that just wouldn't fit into the M1 form factor.

Like M1 modules, M2 devices can be short (M2S) or tall (M2T).

The color-coding scheme is identical to that of M1 Tibbits:

The green Tibbit color. The purple Tibbit color. The blue Tibbit color. The yellow Tibbit color. The gray Tibbit color.

Input module

Output module


Power supply

Blank module

M2 Tibbits can incorporate up to eight status LEDs.

I/O pins

M2 modules have four groups of six pins each, arranged into two rows:

The general schematic of an M2 Tibbit.

Pins 14-17 and 20-23 are control lines H-A. They are for interfacing with our embedded modules or other microcontrollers. On Tibbo Project PCBs (TPPs), these pins are connected to the main CPU.

Pins 2-5 and 8-11 are I/O lines facing the outside world. On TPPs, they go to Tibbit connector sockets (i.e., connect to C1 and C2 devices).

Pins 12 and 24 are the GROUND and +5V power pins. Most Tibbit Modules consume (take) 5V power. There are also power supply Tibbits that generate 5V power from a variety of sources. Those output 5V through pin 12; for an example, see Tibbit #33.

Pins 1 and 13 are for the additional +15V and –15V voltages. These are optional and only needed by a few Tibbits. Special power supply Tibbit #12 generates +15V and –15V from the main 5V power.

Pins 6, 7, 18, and 19 are unused and should be left unconnected.

Notice that each pin row has a "missing pin" in this middle. This separates a row into two groups of six pins.

M2 "Wide" Tibbits

I/O pins