| REVIEW: Propeller Pro Dev Board |
| All News -> Reviews |
| Written by Nicholas McClanahan |
| Saturday, 30 May 2009 10:14 |
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The board consists of a Propeller, wired up to power, USB circuitry and an EEPROM, and a mix of I/O housed around a breadboard. While most of the I/O is partially wired up, you'll still need jumpers to connect things to the Prop. The breadboard isn't wired to anything, though, so you'll need jumpers to connect the power rails of the breadboard and connect the I/O to the Prop. The Propeller Professional Development Board Complaints — The power rails on the outside of the breadboard do not run the length of the board, but instead have a break mid-way through. Forgetting this can cause problems, so you'll need jumpers to connect the split rails. The EEPROM doesn't use a machined pin socket, but instead uses the more inexpensive leaf socket. The board also doesn't come with a Propeller. Nice Stuff — The I/O is varied, including headphones, an RTC, DE-9 RS232, plenty of switches and lights, PS/2 ports, and more. The RCA video jack is nice, but the omission of a second jack for audio seems odd. The PCB is extremely solid and build quality is high. Comments (9)
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Gadget Gangster Designer
I personally don't think it's worth it... The PPDB doesn't have NES, but it does have a very nice breadboarding area with access to all the I/O pins and built-in apps. It's basically a propeller demo board with a few more goodies and a LOT more prototyping space.....
It Depends
It depends on how you develop. It's hard to quantify the product - it seems excellent for beginners, and it seems great for advanced users who are working with several IC's, but I think the majority of designers are really just trying to make a video display, or read a thermometer, or control a few servos. So - if your use case is typical, there might be better options.
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I couldn't do anything without my PPDB. It's one of my most valuable tools, and I'd hate to be without it. It's certainly not perfect (limited number of 5v and 3.3v connections mainly), but it has everything that I need. I don't mind connecting things by jumpers: it allows me to be more flexible than a soldered connection. I use my PPDB for the initial breadboarding of all my projects, even though I have a demo board and protoboard. I don't think I'd have as much fun as I do without it.
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I think you miss the point of the "Pro" development board. It is meant as a single source solution for prototyping a wide variety of solutions, but not necessarily meant as the final prototype for anything. It's a way to get started on development and programming without having to collect parts, do soldering, etc. You can also do "proof of concept".
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I often find myself needing something that's not on the board (like a microphone, SD card or a joystick controller) so it's rarely a one-stop-shop. Everyone's projects use different setups and different hardware. Some folks just make videogames, some people make robotics, others want to do video overlay.
Demo board for the win ?
Well, I got a demo board at the propeller micro group in Ohio, and it has almost all of the same things as the PPDB! Of course, most of the I/O's are pre-assigned, but still... It's good if you don't want all the apps and extra space...
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I've got a demo board. I use it to try new ideas without having to mess up a dedicated project, where my spinStudio boards tend to be built semi-permanantly into longer term projects. So I think there is a place for a purely benchtop experimental board. |






