New IO Module
Rayman
Posts: 15,833
in Propeller 2
Been doing some PLC type stuff and found the need to have some buttons, switches, and LEDS to test things out with. So, made this board for anybody else diving into something like this...
There are four buttons, four switches, and 8 LEDs.
By default, the buttons and switches each control an LED.
But, one could use the P2 smartpins to make the LEDs all controllable by the P2 and use just a short time to measure the inputs.
So, could be 8 inputs and 8 outputs, all independent.
Comments
Could have made the LEDs all the same color to make it easier to make.
But, wanted multicolor. Helps with some examples like traffic light control and such...
Here are the colors:
0: green
1: yellow
2: red
3: blue
4: green
5: yellow
6: red
7: blue
Good idea. If you can find the space for it then I'd arrange the LEDs down the centre line between the buttons and switches. That way, visually, each LED is easily associated to it's wired button/switch.
@evanh This design is done... Already on sale...
Did have to rework one thing though... Second row of resistors was 1k. Idea was that buttons and switches would turn on LEDs like 50% and then P2 could turn on 100%.
But, that didn't work out. Mainly because my green LEDs are dimmer than the rest. So, the resistors are all 100 Ohm now.