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Found 1 result

  1. curtis63
    I'm attempting to get as close to an OpenCollector PIN as I can with the MSP430G2553 Launchpad and a sensor. SCL is P1.6 and SDA is P1.7. I digital write both pins LOW and then set the PinMode on both to INPUT which should allow both pins to float HIGH. I have a 4.7K pullup resistor on each pin connecting it to 3.55v (HIGH). Is my code wrong, or is the sensor that I'm using pulling the line low? The sensor says it operates at a max of 3.7 volts. I'm using the Launchpad which measures 3.55v. Am I overloading the sensor and causing it to pull SDA to low? #define SDA P1_7 #define
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