build a sensor board with a 12-bit or 16-bit ADC converter (such as the ADG7828 I2C ADC or a Texas Instruments SPI ADC). you'll need to write your own ADC drivers for whatever you decide on. Many other sensor boards including the mica weather board and ucla's mica interface board have used external ADCs.
Future micas will have the same processor. Although I lobbied for the TI MSP processor with 12-bit ADC, that will not exist anytime in the foreseeable future. -Joe -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Manuel Ruiz Sandoval Sent: Tuesday, April 01, 2003 11:01 PM To: [EMAIL PROTECTED] Subject: [Tinyos-users] A/D 10 bits not enough Hi, We are using the Micas to measure acceleration, and the A/D converter of 10 bits is insufficient to have a good resolution of the signal, especially for low amplitudes. Is there anyone that is trying to address this problem? Is there any chance that in the future the Micas will have a better microprocessor? Thank you, Manuel _______________________________________________ Tinyos-users mailing list [EMAIL PROTECTED] http://mail.Millennium.Berkeley.EDU/mailman/listinfo/tinyos-users
