Memsic 2125 Dual-axis Accelerometer and the PPDB
Buck Rogers
Posts: 2,185
Hello!
I took the plunge several weeks ago and bought one of the Memsic 2125 Dual-axis Accelerometer devices from a (probably by now closed) Radio Shack that was on that list. I also downloaded the requisite PDF files and a zip file of the examples. I finally looked at the first describing PDF for it, and it ended with showing the device mounted on I what I presume to be the PPDB and connected to a TV with an video-in connection on it. It is my understanding that the PPDB has been discontinued for a rather long time. It really isn't available.
Can any example that was written to run on it, and it would then display video from that activity, be utilized on say a Quick Start board?
I took the plunge several weeks ago and bought one of the Memsic 2125 Dual-axis Accelerometer devices from a (probably by now closed) Radio Shack that was on that list. I also downloaded the requisite PDF files and a zip file of the examples. I finally looked at the first describing PDF for it, and it ended with showing the device mounted on I what I presume to be the PPDB and connected to a TV with an video-in connection on it. It is my understanding that the PPDB has been discontinued for a rather long time. It really isn't available.
Can any example that was written to run on it, and it would then display video from that activity, be utilized on say a Quick Start board?
Comments
I know I've run the demo on the Demo Board and it was pretty simple.
My trouble came when I wanted to modify the demo. The graphics driver used in the demo uses a lot of RAM and I soon ran out of program space.
Hello!
Makes sense. A lot of sense in fact. I believe I can easily secure the right style RCA connector for doing so. The schematic is indeed there, and I should have caught that before. My guess is that since the PDF just showed a board being used, and didn't say what it was, and I earlier knew of the PPDB I didn't realize that the demo board was stuck there.
Note to Parallax, since the VHDL code for the Prop1 was released under an appropriate license, why not release the PPDB* design specs under the same license?
Okay Duane this week I'll try that and see what happens.
*PPDB means Parallax Propeller Demonstration Board.
https://www.parallax.com/product/32111
$99.99 is a pretty good price IMO.
Correct. The professional model board is indeed being sold. I've come across it on many travels through their site. Its the demonstration board that isn't being sold. Hence the confusion over names.
Obviously this was caused by a bigfoot throwing stuff at their building today.
But yes the idea is sound, I'll change the terms to indicate which board I mean. And having confirmed that the demo board is indeed the critter I mean and is unfortunately not available, this is the thing shown here: https://www.parallax.com/product/32100 and ideally its the one that needs to have his design specs released.