This is a Tibbit module — part of the Tibbo Project System that allows you to build your own custom embedded device with only the components you need. Start with a Tibbo Project PCB, add Tibbits like this one, then place the built design into a Tibbo Project Box to complete your product.
Tibbit #00_1: Four directly exposed I/O lines of the microcontroller.
Sometimes you just want to work with CPU I/O lines directly — no logic or circuitry in between. This Tibbit is (basically) four wires that connect its control lines to I/O lines. Complement it with terminal block Tibbit #20 (nine terminal blocks) or #21 (four terminal blocks) and you have four CPU lines "exposed" and ready to be used.
Note that a CPU I/O line has the voltage swing from 0-3.3V when the line is enabled (io.enabled= 1- YES). The voltage may be close to 5V when the line is disabled (io.enabled= 0- NO). This is because the CPU has weak pull-up resistors connected to 5V.
Combining this Tibbit with #21 is potentially limited in use because #00-1 doesn't have dedicated ground or power lines, and Tibbit #21 doesn't have them, either. If you need ground (and power obviously), consider replacing #21 with #20 (it has ground and power), or switch to using Tibbit #00-2 (it provides ground) or #00-3 (it provides ground and power).
Four yellow LEDs are connected to four control lines of the CPU (through buffering gates). These LEDs light up for the LOW state of control lines.
- Form: M1S
- Power: 5V; consumes 20mA
- Mates with: #19, #20, #21 (limited use)
- Similar to: #00_2, #00_3
M1S Tibbit Modules Overview M1S Tibbits are single-width modules occupying one standard M socket on a Tibbo Project PCB (i.e. TPP2 or TPP3). Their footprint is roughly 7 × 14 "squares" (one "square" is 2.54 × 2.54 mm). The M1S modules are 12.5mm high.
M1 modules have two rows of 6 pins:
Pins 8-11 are control lines A-D. They provide the interface to programmable modules or other microcontrollers. On Tibbo Project PCBs, these pins are connected to the main processor.
Pins 2-5 are I/O lines facing the outside world. On Tibbo Project PCBs, they go to C Tibbits.
Pins 6 and 12 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.
Pins 1 and 7 are for the additional +15V and -15V voltages. These are optional and only needed by few Tibbits. A special power supply Tibbit (#12) generates ±15V from the main 5V power.