Training Board allows you to perform various experiments with most microcontrollers. TB-1 has programmable "traffic light" LEDs, four channels of 8-bit analog input, buzzer, switch inputs, and counter/timer inputs to test the interrupts.
The control/data lines and the power supply connections are available on a 20-pin (2×10) expansion connector for interfacing to existing microcontroller systems. This board can be connected either as a piggyback daughterboard on a microcontroller board (one with a matching connector) using standoffs or can be placed away from the microcontroller board using a 20-wire ribbon cable.
The expansion connector is plug-in compatible with MicroTRAK, MINI-MAX and BSCB systems. You can use it in your own system too, of course; see the manual for the expansion connector's pinout.
TB-1 Technical Manual TB-1 Port Mapping