Search found 23 matches

by Schema
Mon Dec 07, 2015 10:49 am
Forum: Projects
Topic: Best IMU for indoor use under $200? How about under $500?
Replies: 1
Views: 336

Best IMU for indoor use under $200? How about under $500?

I've been experimenting with various IMUs like the MPU9150, but I'm finding it simply isn't up to the task. It's noisy, non-linear, and not repeatable. I've been using the excellent RTIMULib and calibrated the magnetometers, but it's still not what I need. I'm using it indoors which may be an issue....
by Schema
Sat Nov 14, 2015 4:37 pm
Forum: MicroView Projects
Topic: MicroView SoundScope
Replies: 0
Views: 3260

MicroView SoundScope

Here's a little project I did a while back, to use the MicroView as a piece of sound-sensitive jewellery, using all parts from Sparkfun. (Sorry for the crappy photos) Board: http://i.imgur.com/yVTVuKt.jpg Populated with a BOB-09964 and powered off of a PRT-13112 . I've also tested it with a plain 9V...
by Schema
Tue Sep 22, 2015 5:18 pm
Forum: MicroView Projects
Topic: MicroView-Powered Wi-Fi Modem for the Commodore 64
Replies: 0
Views: 1165

MicroView-Powered Wi-Fi Modem for the Commodore 64

Here's another MicroView project I've been working on the last couple of months, that combines two of my favorite computers - the MicroView and the Commodore 64 8) http://i.imgur.com/epHy8B9m.jpg (Click for album with more photos) It's a Wi-Fi Modem for the Commodore 64. The MicroView is used for mo...
by Schema
Fri Sep 11, 2015 12:21 pm
Forum: Microview Support
Topic: Problems with MicroView +5V and USB Programmer
Replies: 3
Views: 1259

Re: Problems with MicroView +5V and USB Programmer

Thanks for the reply, I'll test and see. Any recommendations for a common part#? (11,271 matches on Digikey ;-))
by Schema
Thu Sep 10, 2015 8:26 am
Forum: Microview Support
Topic: Problems with MicroView +5V and USB Programmer
Replies: 3
Views: 1259

Problems with MicroView +5V and USB Programmer

I have a MicroView project I'm working on, where the MicroView is typically powered by a host computer (a Commodore 64 if it's relevant :wink:). I've been powering the MicroView off of the regulated +5V supply provided by the computer, hooking it directly to Pin 15 (+5V) and this works perfectly. Ho...
by Schema
Tue Jul 14, 2015 10:53 am
Forum: Microview Support
Topic: Options for Two Serial Ports on MicroView?
Replies: 3
Views: 1679

Re: Options for Two Serial Ports on MicroView?

That's an intriguing idea! I'll look into it more. I was hoping to keep it all through-hole, and haven't found those in a through-hole version of those parts yet. I do have the space on the board.
by Schema
Mon Jul 13, 2015 8:45 am
Forum: MicroView Projects
Topic: Any Projects out there?
Replies: 1
Views: 1496

Re: Any Projects out there?

I love mine (I have three), been building some fun projects around them. On the forum here you'll find some examples of other projects, also at http://www.uview.forumchitchat.com/

That said, I agree, it seems to have faded into obscurity relatively quickly, which is a shame.
by Schema
Thu Jul 09, 2015 9:27 am
Forum: Microview Support
Topic: Options for Two Serial Ports on MicroView?
Replies: 3
Views: 1679

Options for Two Serial Ports on MicroView?

I'm looking to use my MicroView as a data translator/sniffer between two serial devices, running at a low serial baud of 2400. I had assumed it would be trivial to use the regular Hardware Serial on pins 0 and 1 and the common SoftwareSerial on two other pins, but according to this thread , Software...
by Schema
Mon Jul 06, 2015 9:21 am
Forum: Arduino
Topic: Uno: Dropped Characters With Hardware/SoftwareSerial Bridge?
Replies: 1
Views: 366

Uno: Dropped Characters With Hardware/SoftwareSerial Bridge?

Hi all, I am interfacing an RN-XV to an older PC at 2400 baud. It works perfectly, no data is dropped when connected directly. Not using flow control. However, I'd like to introduce an Arduino Uno (actually, a MicroView) into the middle of the setup to eventually do some real-time data translation. ...
by Schema
Fri Jun 19, 2015 8:01 am
Forum: MicroView Projects
Topic: Is there a shorter MicroView header socket out there?
Replies: 1
Views: 1287

Is there a shorter MicroView header socket out there?

I've been working on a couple of MicroView-based projects (details soon) and I notice that the "standard" 8-pin header socket is quite high. So the MicroView sits up rather comically high on my boards :wink: This the one I've been using, seems to be the same as the one on the MicroView USB programme...
by Schema
Tue Jun 09, 2015 8:23 pm
Forum: Wireless/RF
Topic: Weird Fragmentation With Multiple XBee Series 1s
Replies: 6
Views: 609

Re: Weird Fragmentation With Multiple XBee Series 1s

Thanks, all good tips! My application can handle the occasional dropped packet, no worries there.

Turns out the trick was to increase the RO parameter to 10 - this made the messages clearly interleaved, it's working great now.
by Schema
Tue Jun 09, 2015 8:20 am
Forum: Wireless/RF
Topic: Weird Fragmentation With Multiple XBee Series 1s
Replies: 6
Views: 609

Re: Weird Fragmentation With Multiple XBee Series 1s

Good point. Though I (possibly incorrectly) assume that the XBees had an internal packet buffer, and what I am seeing is packet fragmentation. How else would one message get inserted in its entirety into the middle of another? (As opposed to individual bytes getting interleaved or dropped).
by Schema
Tue Jun 09, 2015 7:15 am
Forum: Wireless/RF
Topic: Weird Fragmentation With Multiple XBee Series 1s
Replies: 6
Views: 609

Weird Fragmentation With Multiple XBee Series 1s

Picture is worth 1000 words: http://i.imgur.com/AhtModK.png I have four Arduinos collecting data and sending it wirelessly to a PC over Series 1 (802.15.4) XBees. Details: The data rate is 57600 into the XBees and 115200 into the PC. Range is less than 50 feet. Messages are very short, around 30 byt...
by Schema
Mon Apr 27, 2015 9:33 am
Forum: MicroView Projects
Topic: MicroView games (Pong, BreakOut, FlappyBird/Copter)
Replies: 2
Views: 1655

Re: MicroView games (Pong, BreakOut, FlappyBird/Copter)

These are great! Love the Atari 2600 paddles, why didn't I think of that??
by Schema
Fri Mar 20, 2015 8:18 am
Forum: Microview Support
Topic: Anyone building a wireless display out of your Microview?
Replies: 5
Views: 2340

Re: Anyone building a wireless display out of your Microview

I've interfaced mine to an RN-XV, exactly the same pinout as an XBee but does Wifi instead. Pretty neat.

https://www.sparkfun.com/products/10822

Edit: If you end up making boards, I'd be interested in one or two!