But from which channel does it read? I mean, there are seven ! And I must get a reading from both channel seven and channel one, in different events. Do you know how do I do that?
Thanks, Fernando. > Hi! > > On Mon, 20 Oct 2008, [EMAIL PROTECTED] wrote: > >> 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 7?s 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" >> >> (This is for MICA2) >> >> >> But how do I get this ADC_Count? Would that be what VoltageRead of >> VoltageC returns? I am not sure about that, but the veracity of this >> information is really important. If anyone can affirm this or correct >> me, >> please answer. > > In tinyos-2.x the ADC_Count is what the Read.readDone from VoltageC > returns. I attached a program that I use to verify this. When the MicaZ is > plugged in the USB the value returned was 405 which corresponds to about > 3V which seems reasonable. > > -- > Razvan ME _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
