Ah transistors!
Did used transistors in the past, and learned a lot , specially about the base transistor required to saturate the base!
For now was using the pin from the 28x1 to show my 9yr old son about picaxe and wiring in the process .
For now he really understand how to wire an LED to the IC and the high and low comands, also letpins syntax.
So as a bonus will teach him to fade the led using PWM.
But transistors are comming soon!