Hello Everyone,
I am working on a project to help me better understand low-power design techniques. The unit will make a temperature measurement, transmit the data via XBee to a computer, where it will be logged in a CSV file, then the unit will go into sleep/low-power mode. The unit I am designing will have the following:
-Anson
I am working on a project to help me better understand low-power design techniques. The unit will make a temperature measurement, transmit the data via XBee to a computer, where it will be logged in a CSV file, then the unit will go into sleep/low-power mode. The unit I am designing will have the following:
- Low-power MCU (MSP430, RX111, or some other low-power MCU)
- Digital temperature sensor (DS18B20)
- XBee module (Probably Series 2 but still need to look into it more)
- 3.6V Lithium Ion rechargeable coin cell battery
- 3.3V LDO regulator
- Battery management IC (Probably TI or Maxim)
- Put the MCU, XBee, and battery management in sleep-mode when waiting to take/send a temperature measurement
- Perhaps run the MCU at a lower frequency
- Maybe use a transistor on the power pin of the temperature sensor to keep the sensor from drawing power when it's not being used
-Anson