The advanced multi-channel power measurement solution for applications' power consumption optimization

ACME provides multi-channel power measurements capabilities to the BeagleBone Black.

ACME is based on an ACME Cape board and Power Probes, turning it into an advanced power measurement solution.

It enables up to eight channels with accurate VBUS, VSHUNT, CURRENT AND POWER measurements per ACME cape.

The ACME initiative was launched, with the objective of getting rid of all these limitations of current proprietary solutions and providing the community with the most flexible low-cost but high-perf solution! It is completely open source, from HW to SW drivers and applications.

ACME Cape characteristics:

• Up to 8 measurement channels per Cape
• Other BeagleBone Black Cape stacking still possible with full extension signals access
• I2C bus selection possibility through switch
• Identification EEPROM with programmable I2C base address
• Input/Output main signals 6-pin extension header allowing external connection/visualization

Power Probes general characteristics:

Data reporting:

• VBUS, VSHUNT, CURRENT AND POWER
• High Accuracy measurements
• 16-bit ADC
• 2.5uV offset for VSHUNT
• 1.25mV offset for VBUS
• 0.02% Gain error typical
• 140us conversion time minimum
• On-board noise filtering

Other features

• Calibration for optimum accuracy selection
• Multiple measures averaging
• Conversion time selection from 140us up to 8.244ms
• Programmable ALERT interrupt for over/under limit values
• Configurable operating mode
• I2C 400KHz data transmission bus

3 Power Probes versions according to your needs

• Jack / DC Barrel (2.5mm)
• USB
• HE10

Power_Probe_Jack (optional)

• Designed for Jack (DC Barrel) power supplied applications monitoring
• Includes power switching capability to power ON/OFF your application
• Up to 20V/6A input allowing measurements for wide range of applications

Power_Probe_USB (optional)

• Designed for USB power supplied applications monitoring
• Includes power switching capability to power ON/OFF your application
• Up to 5V/1A input allowing measurements compliant with USB Power standard

Power_Probe_HE10 (optional)

• Designed for onboard individual power rail measurements
• Small 2-pin header connection

Note the Power_Probe_HE10 comes in various versions to better match your needs:

• Power_Probe_HE10 - no shunt
• Power_Probe_HE10 - 5 mohm shunt
• Power_Probe_HE10 - 10 mohm shunt
• Power_Probe_HE10 - 20 mohm shunt
• Power_Probe_HE10 - 50 mohm shunt
• Power_Probe_HE10 - 100 mohm shunt
• Power_Probe_HE10 - 500 mohm shunt

Note that no probe is included.

To order additional Power Probes, please use the links provided above. An ACME Power Measurement Kit is also available, including 1x ACME cape and 1x Power_Probe_Jack.