ADC2 is output and low. GIO pins can only source ~2mA of current, so I don't recommend using them to power a device.
-Joe On 9/3/06, Simon Davis <[EMAIL PROTECTED]> wrote:
Hello, I'm trying to use GIO1 as a power source for a sensor so I can turn it on and off to save power. If I put a voltmeter on the pad of R16 I get the battery voltage of about 3V appearing as it turns on. If I solder a 0ohm bridge on R16 to feed it to pin 7 of the 10 pin header (which is also used by ADC2), the voltage drops to about 1.3V and it draws over 30mA - this is without any load on pin 7. What am I doing wrong!? It's presumably something programmatic. I'm using TOSH_MAKE_GIO1_OUTPUT() and then turning it on and off with TOSH_SET_GIO1_PIN() and TOSH_CLR_GIO1_PIN(). Should I do something with ADC2 and why is the voltage dropping and 30mA being drawn? Many thanks Simon Davis -- ___________________________________________________ Play 100s of games for FREE! http://games.mail.com/ _______________________________________________ Tinyos-help mailing list [email protected] https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
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