Thanks & Have a Nice Day Mohamed
--- On Wed, 3/18/09, Mohamed H. Seddik <[email protected]> wrote: From: Mohamed H. Seddik <[email protected]> Subject: Battery Voltage measurement To: [email protected] Date: Wednesday, March 18, 2009, 1:47 AM how to use This " TinyOS component VoltageM.nc can be wired into an application to provide this measurement capability. The reserved keyword TOS_ADC_VOLTAGE_PORT is mapped to ADC Channel 30" how to get access to the channels and do whatever this say How can I do the following steps, According to "MPR-MIB Users Manual": "To compute the battery voltage: 1. Set the BAT_MON processor pin (PA5/AD5) to HI. 2. Program the application code to measure ADC Channel 7. 3. Compute battery voltage, Vbatt, from Channel 7s data by: Vbatt = Vref × ADC _ FS ADC _ Count where: Vbatt = Battery voltage ADC_FS = 1024 Vref = External voltage reference = 1.223 V ADC_Count = Data from the ADC measurement of Channel 7" Thanks & Have a Nice Day Mohamed
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