BOE and ULN2x03

[Bill P]

I have a supplemental board I made using a ULN2083 with input diodes.  Can I use this in place of a Prop-2 until the real thing is available? Also can the Prop-1 trainer be used with jumpers to the appropiate pins? I guess I could try and hook up the components, but I figuered that you have already done the work and can guide me in the right direction.

Bill

[JonnyMac]

Connections between the BS2 and the ULN2803 are pretty straightforward.  Before there was a Prop-2, I built an equivalent circuit using Parallax's Super Carrier board -- you can see the details in this Nuts & Volts article:

http://www.parallax.com/dl/docs/cols/nv/vol7/col/NV140.pdf

Yes, if you're careful you could connnect the P1T to the BS2; you only need the pin and ground as the LEDs are active-high.