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Showing content with the highest reputation on 11/22/2010 in all areas

  1. took a few shots of my cables today in case someone needs to compare w/ their hacks. this one is the more recent ca-42s from ebay and dealextreme if u just need uart and don't care about powering your project, u can just rip off the phone end connector and u will have 3 wires. Rx-Red, Tx-Blue, Orange-Gnd. u can just add header pins and connect to your breadboard project. note that Rx,Tx mentioned are from the cable, u need to connect Rx to Tx of MCU and Tx to Rx of MCU on your project. if u had a dku-5 cable, the pcb is the same, but the dongle is in black color and the wires ar
    2 points
  2. bluehash

    jbremnant on Hackaday

    jbremnant got featured on Hackaday today for his LED Matrix. Good going! Congratulations.
    1 point
  3. mnpumar

    Digital LED Clock

    So here it is: (EDIT: the forum seems to be cutting off some of the pictures to the right, if you'd like to see the full version of them, go here: http://img718.imageshack.us/gal.php?g=25703750f.png) 4 MSP430's working together The whole thing runs off a single 9V battery. The two digits for the hours are connected to one MSP430, and the two digits that make up the minutes are each connected to separate MSP430s. The whole thing is controlled by another MSP430 which keeps the time. The itself clock has two modes, one mode where it counts time
    1 point
  4. the difference for P1.6 between launchpad and breadboarded is that on the launchpad it is connected to a LED (unless u removed the jumper). may be to need to setup your pull-up / pull-down for P1.6 and P1.7 (if these are your SDA/SCLs) if u haven't done so typical i2c requires the bus master to have pull-ups, if u don't breadboard them physically, u should use internal pull-ups P1OUT |= 0xc0; // p1.6, p1.7 as pull-up high P1REN |= 0xc0; // enable resistor for the two pins
    1 point
  5. simpleavr

    P2.7 As Input?

    see the second diagram in the following link http://www.rentron.com/Myke6.htm also, u should set P2DIR = 0 instead of P2DIR = BIT7, your P2IN can still get reading but it may not be reliable, if your P2OUT has also set BIT7 on (which u did not), u may even blow up a pin when u use a wire to poke around. from slau144e.pdf to do non-interrupt button de-bounce, i would . setup P2.7 as input, w/ pull-up enable P2DIR = 0; P2REN = BIT7; P2OUT = BIT7; . tie the button between P2.7 and Gnd (i.e. low activate) . use a counter for de-bouncing. this setup will be input n
    1 point
  6. i've put up the original source on my project page, if anyone is interested. http://www.simpleavr.com/msp430-projects/3p4w-clock also a short video showing how to enable the "egg" tune player. you will also see added parts (PCF8563 RTC, diode and capacitor for backup) on the video. i am quite happy w/ this addition, before the breadboard was too bland (too few parts). i am making new firmware to use the RTC properly (calender, alarm, etc), will post it when done. thanks.
    1 point
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