voxel wrote: I had a couple questions about the diagram: pins 18-25 show as being connected to ground (0V)... Does that mean that pins 18-25 are ground, or does it mean that they need to be grounded to some 'external' ground?voxel,
Yes, more details here.
voxel wrote: I'm pretty sure those pins act as ground, and if thats the case, can the the 0V ground under the 220pF capacitors just be connected to the ground pins 18-25?Yes, Its a shorthand to use labels to identify connected circuits. The issue would be if the grounds are not connected (one will have a different name) or they are connected phyically in a prescribed way (single-point, star, for example). This application is not in that class, and a breadboard will suffice.
voxel wrote: Also, the diagram does not mention what V+ should be? 5V?Yes, again shorthand or drawing style.
Wow, three 'yeses' in a row, you must be getting the hang of the hardware art!
I'm over 13 & support COPPA regulations