PandaBoard Power Measurements

Reference Materials

 * Measuring Power Consumption of the OMAP4430 using the PandaBoard
 * Snowball Power Measurement Modifications
 * Low Cost Power Measurement presentation by David Anders
 * Video
 * [[media:danders-power-measurement.pdf|Slides]]

Parts

 * INA219 - I2C based power measurement IC
 * Standalone device and does not require an ADC for sampling
 * does voltage measurements
 * only needs an I2C interface for data transmission
 * Digikey product page
 * TI product page
 * INA199A2 - x100 OPAMP
 * requires the use of an ADC for sampling
 * recommend using an Atmel AVR or TI MSP430
 * Datasheet
 * Digikey product page
 * Shunt Resistor
 * 0603 package size
 * 0.05 Ohm resistance
 * Digikey product page

Power Rails for PandaBoard ES Rev B1 (Latest)


NOTE: L22 is on the back side of the PandaBoard-ES