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voodoofish last won the day on July 15 2012

voodoofish had the most liked content!

About voodoofish

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    Los Angeles, Ca.
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    Electronics, robotics, gardening, photography, craft beer
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  1. Ran into an issue like the one above when attempting to use a G2452/usi spi. I was getting an isr trap which turned out to be an unhandled isr for the usi spi comms. I reported this to Spirilis. An update is forthcoming that resolves the issue.
  2. I've been thinking of designing a board as well for use with the nrf24l's since seeing Spiriliis post and code. Something similar in size and compact similar to yours. Wondered if you had looked at different crystal options. Just wondering as I was able to source some smaller rectangular ones and mounted them closer to the xtal pins which saved a lot of space compared to the barrel type. I also opted to use the internal caps vs the external option to save space(and soldering headaches that could be involved). Had you looked into using lipo cells? I've been using a small setup that allows for u
  3. I was able to get this(the upload part) to work (mostly so far) by using a 5v version of the ft232R cable(LED/res used to drop the TX line). The transfer was successful but not able to detect the device on my windows machine afterwards. It does appear to be detected on the linux box I have though. As a side, soldering the pin22 and 13 is like doing surgery.....you need a very steady hand. Question related to tp2/4, do these need to be disconnected from the buttons once this process is complete for the board to be connected again? Edit: So after a few minutes of being disconnected, I t
  4. From looking at the errata from both the 2231 and te 2452, they both suffer from the USI bug related to sending data 1 additional clock, though I haven't checked teh 2553 for any strange behavior. The issue with the addition clock tick handled in the code already though...so.... Edit: I tried various workarounds with the clock tick bug but none worked. I would imagine that the issue would persists with the clock phase being set to a different mode, but I could be wrong.
  5. These are the ones I have. I'm pretty much using the code from your post on the nokia 5110 with minimal changes. It seems odd that this works with the 2553 and not the 2231/2452..... #define LCD5110_SET_COMMAND P1OUT &= ~LCD5110_DC_PIN #define LCD5110_SET_DATA P1OUT |= LCD5110_DC_PIN
  6. so....USICKPH was the issue? As a side, this is one of the settings I hadn't tried to change but after going over your code, this was the only thing that I had to comment out to get it to work. Thanks Rob, I'm surprised others hadn't run into this before..... EDIT: curious why using the CKPH =1 works on the USCI with the 2553 but not on the 2231. Any thoughts?
  7. I've seen various posts with people running these, some with sw solutions, but I'd really like to use the hw. The issue is that I just get the blank screen staring at me when using the noted chips. When using the 2553 and code sample from RobG's post, the display works fine(without hw reset). when attempting to run on the other chips, I get nothing. I've got both wired up identically(per diagram in RobG's post) and tried the code sample that was posted in relation to the 2231 later on in that thread. I've tried various changes to the code, adding hw reset, changing the order of hw config set
  8. Nice setup. Did you use the pins for the 32Khz crystal for anything or have any plans to? Had you considered a 5v switching regulator for the display(I had similar issues with the display not showing up very well on lower voltages). I think the transistor idea for the LCD panel enable/disable would be useful. If you don't use the pins for the crystal, you could also use those pins for for button actions(start/stop) or other things.
  9. voodoofish

    Water Pump

    I've had a similar project on my bench for a little while. For the water pump I picked up a small pump on amazon that runs off off +5v power supply(was trying to find something that was based on those little solar water pond things but not the submersible type) I think it was around $10-20ish (though I can't find it again). It's not very powerful(3-5lpm), but I've run it off of a solar panel and have managed to have it pump out of a 1 gallon water bottle and onto a plant about 2-3 feet up. Hose size was fairly small, I'll have to check it later. 2 issues that I'd so far ran into. This was not
  10. Just wanted to say I've been a big fan of your blog and have visited it often. Always happy to see new content there and doing stuff with the newer chips would be great. I still like using my 2211/2231 chips for things so I don't mind seeing any content for those as well. I try to check a couple times a month to see if there is anything new. Thanks again for a great site.
  11. @@ToF Yes, I actually plan to dust it off and get things going on it again. It's amazing how time flys!
  12. I'll take 2 of each as well voodoofish ----- 2 modules ----- 2 boards
  13. Very cool project. Question for ya on the msp430 jeenode code. Was this tricky to set up and do you have any suggestions on using them? I've got a pair of rfm12b's as well and have been considering trying them out sometime. Just want to know what sort of issues you ran into (if any) while playing with them.
  14. This is the first graph of data pulled from the data logger. This was a simple test, but verified saving and retrieving of data from the chip and some other test functions that I have been working on. This test used the WDT interval timer and took roughly an hour to run to collect 4096 samples. The variances in temp were due to the time and the amount of sun hitting the logger(2 rapid increases in temp). I think it's time to populate another board as I know the setup works and would allow me to start running longer tests while working on code.
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