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Found 6 results

  1. Hi. I'm new to 43oh. My team is building a platform for the breadboard for software developers. It allows you to configure prototypes without wires or other components. How? Connect the controller board to your breadboard and PC. Connect channels to IO pins in the user interface. The user interface will interact with the hardware and implement your configuration on a breadboard via a programmable switch matrix, thereby replacing wires. Then, if you want the user interface to interact with the ADC onboard the controller board: Connect the GPIO channel to the ADC channel on the same IO pin. Set the ADC channel on. Then you can analyse the signal, as shown here: https://www.youtube.com/watch?v=YtL6YwalWnk There is also an interface on the controller board for custom shields, which can replace other components, such as higher precision ADC, a DAC, a MIDI controller, an SoC, wifi adapter or an FPGA. This feature is still in development. Tell what you think about this tool kit. You can follow this project at https://hackaday.io/project/18755-the-metaboard to get updated as we prepare for a crowdfunded manufacturing run.
  2. This is my entry to the POTM Nov-Dec 2013. Minimalist's Clock? Multi-mode Clock? Matrix Clock? M-Clock Description to follow...
  3. Hi everyone! This is my second time on the forum. The first time i was here it was to ask for help with interrupts and an LED display. 43oh was very helpful and I accomplished my goal. Today I am here to ask for help again. Goal: Implement the code previously written into the chip only and drive it without the development board. (breadboard mode) I did some research and most post/websites told me that all i need is 3.3V and a 47k resistor going from VCC to the RST pin on the chip and that my program would start working... I tried this and it did not. reference:http://crossplatform.net/running-msp430-launchpad-on-a-breadboard/ My question is, since I am working with interrupts and my code is a bit complicated, would i need an external clock/crystal? What do i need to move away from the development board and onto the breadboard? Thanks in advanced, everyone here is so helpful!!
  4. I had a few of these "protoplates" made-- I fell in love with the one from AdaFruit for the BeagleBone and really wanted one for the LaunchPad and had some made. (I have to thank Bart, if he's on here, for really making my first Ponoko trial-run so smooth). So here is where you can order the sheet. It's 14 total plates on the Plastic- Acrylic- Clear- 3mm- P3 sized sheet, which comes out to be about 3.50 for each plate- total about 46.50 (Bart had free shipping since he's a regular user at Ponoko). I'm sure there is a more efficient way to arrange these to get more on the same sheet (there was a lot of extra plastic that wasn't used). This was a trail run for me. It comes in a large sheet, where you only need to pull off your plate I left the backing on the plate-- Added the breadboard: these breadboards from Mouser (I get them in packs of 10 so it comes out to be about 4.95 a piece) The hardest part was to figure out how to connect the LaunchPad to the sheet. Even though it's nice that the rubber feet were already included... it turned out to be inconvenient. The BeagleBone and the Arduinos have screws that allow you to use standoffs. In this case after trying: hot glue, epoxy, these scrapbooking "zots" (super strong adhesive tapes in dot shape) and double stick tape and found out that all of them don't adhere to the rubber well. What's worked is Crazy Glue. Put it on the LaunchPad, set it down and let it dry... then I peeled off the backing. I'll get to test these in a workshop soon, but so far I like them, but plan on changing a few things. I have about three extra that I wouldn't mind sending to anyone who wanted to see it. It's hard to know which direction is up... I have two sleds and one is right handed and the other is left handed... I guess if I just removed the logo all together I could have it be either right or left handed This is what I think my next one will look like, but I'm completely open for any suggestions! Hope that's helpful, I've included the files to make the edits in my dropbox (it's in illustrator and the forum doesn't like the format for some reason). https://www.dropbox.com/sh/6tho7jrplryvyhl/PJAJ22XqpQ Final- LaunchPad Proto-Sled v1.0- Bart.zip
  5. Often found that there are quite a lot of preparation work to do when trying to test out some simple code or concept, or explore an old IC of some sort collecting dust under the drawer. Everytime I have to pick up the LP, breadboard, jumper wires, LEDs, switches etc. This is my most favorite hobby but I can't afford a dedicated work bench so that means alot of work before and alot of clean up afterwards. I wondered are there more convenient ways of doing this.. I'm sure I'm not the only one facing this problem, and there are very fancy dev boards out there with almost everything imaginable on it - LEDs, switches, capsense, 7-digit display etc.. But I liked my LaunchPad with its small form factor and the unbeatable price tag. I think I needed something compact yet convenient. But compact implies less feature.. oh well, this little board is trying to see if it works for me. It is build upon a bare board, in an 90 degree inclined position sitting on the VCC and GND headers of the LP, providing these to the corresponding rails on the simple board (centered horizontally across). The stuff on this board includes: - 1x 18 pin socket - good for most of my simple ICs like shift registers - 1x 20 pin socket - good for sitting another G2553 for testing out I2C labs - 8x Blue LED - 8x Green LED All the pins on the sockets are brought out with male headers. The LEDs are all grounded so it only takes one wire for it to work. The 90 degree position isfor saving some space (instead of having the breadboard sitting somewhere else) while still have the freedom of most commonly used stuff I needed for breadboarding. I am not sure will it be easier to trace jumper wires but wanted to see if this will help. Some more stuff are planned, but I'm not sure these all can be packed ;-) - 1x 4-pin female headers for bluetooth - 2x switches with NC/NO option - 1x CR2032 battery holder - more headers for Vcc, GND, and blank for easy connections by wires / jumpers Another thought will be building upwards with simple connectors. But then the physical stress on the two pins may be to much.. will see how it goes
  6. Hi everyone! I'm waiting for my Stellaris boards to ship, and they won't be here until December at the earliest, so I thought maybe while I'm reading about ARM development I'd also try my hand at something a little more low level. I'm fairly comfortable with AVR development and one of the things I love about it is that you can pop a chip on a bare breadboard, add a power brick, voltage regulator, a few caps, and you've got a running "board" that you put together with your bare hands. Not that there's anything wrong with prefabbed boards like the Ardiuno or Stellaris, but there's a certain satisfaction that you get putting bits and pieces together. So I'm starting to think of possibly putting together an ARM breadboard solution. Stellaris M4 chips seem to be hard to come by so I'm probably going to either use a Stellaris M3 or one of the NXP M3 chips. One of the things the NXP has is a USB bootloader so (it looks like) I can just wire up a USB port and drop my firmware onto the chip right from my desktop with a minimum of work. I'm not sure if the Stellaris family offers something like this, I haven't dug through the datasheets extensively just yet but that's on my list of to-do's. So my question: Has anyone here tried this bare-bones approach before? I know getting a LQFP chip on a breadboard isn't going to be easy, but there are several prototyping options which would let me keep the chip itself off the breadboard and wire up everything I need with cables. I'm still going through datasheets trying to figure out exactly what other components the chip will depend on being present, but it seems to have internal oscillators and such, so I'm thinking this won't be a royal pain to put together. Anyway, apologies in advance if this doesn't belong in the Stellaris section. I'm not 100% sold on using the Stellaris chip yet, but it's in the running. This is really more of a "generic ARM" project since it's more about the hardware than the specific vendor implementation. Cheers!