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Showing content with the highest reputation on 11/14/2010 in all areas

  1. Yea, the I2C Explorer has a bus-pirate like way of communicating from a pc through the uart to an i2c bus. It uses the builtin USI of the msp430G2231 to handle receiving and transmitting. It is nearly exactly what the TI description of how to use the USI for I2C master shows, put in C code. MSP430 Family Guide with USI description (PDF Page 449): http://focus.ti.com/lit/ug/slau144e/slau144e.pdf What you want is USI Slave though. It does not implement that. TI has great USI Slave examples that run on the msp430g line (I have not personally tried them). TI also has a precreated I2C USI
    1 point
  2. be practical, if u are driving individual leds (or a few leds per segment), you need 4 x 9 segment = 36 transistors, it is a lot to do on a breadboard. each transistor has 3 pin, each led 2 pins, each resistor 2 pins will need hundreds of tie-points and the fact that breadboard are connected column-wise (5 points per column), it will be difficult if impossible to lay them out properly. switching from blue to red led is a wise move, u can drive them leds directly if eventually u want to do that. for blues, its not possible because of voltage being too low. get a few red leds and try laying
    1 point
  3. bluehash

    Member Ranks

    Hello fellow 43oh'ers Forum users now have ranks. This is just an indication that a member has been helpful to the forums by posting regularly. This is solely based on the number of posts... like Karma. An interesting feature will be rolled out in the next month or so - Badges. - A badge if a member receives "Thanks" above a certain count. - A badge if a member wins a "Project Of The Month" contest. - Many more, we have to think as this community evolves. Thanks again for all your support by visiting, helping and posting here. If for any reason, you don't like a feature, feel fre
    1 point
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