peimu/monsoon_power_measurement

monsoon_power_measurement

Equipment and Cable Connections

Monsoon Power Monitor

Software Pre-request

https://github.com/msoon/PyMonsoon/tree/master

# create Python2.7 env
conda create -n monsoon python=2
conda activate monsoon

# install the specific version of libusb1
pip install libusb1==1.9.3

# install monsoon
pip install monsoon

Firmware

LVPM_RevE_Prot_1_Ver32.fwm

install firmware

Hold the "output enabled" button on the front panel and push the power button. Run with sudo.

import Monsoon.reflash as reflash  
Mon=reflash.bootloaderMonsoon()  
Mon.setup_usb()  
fwm_name=b"LVPM_RevE_Prot_1_Ver32.fwm"  
Header, Hex = Mon.getHeaderFromFWM(fwm_name.decode('latin-1'))  
  
if Mon.verifyHeader(Header):  
Mon.writeFlash(Hex)

Measure Experiments

Since the max voltage of Mon.setVout() is 4.55V, we power the embedded board by laptop. One cable between power monitor and embedded board, another cable between power monitor and laptop.

Run the experiments

Run with sudo.

which python
sudo ...

import Monsoon.LVPM as LVPM  
import Monsoon.sampleEngine as sampleEngine  
import Monsoon.Operations as op  
  
Mon = LVPM.Monsoon()  
Mon.setup_usb()  
  
# Mon.setVout(4.0)  
engine = sampleEngine.SampleEngine(Mon)  
# engine.enableCSVOutput("Main Example.csv")  
engine.ConsoleOutput(True)  
numSamples=50000 #sample for ten second  
# engine.startSampling(numSamples)  
  
#Disable Main channels  
engine.disableChannel(sampleEngine.channels.MainCurrent)  
engine.disableChannel(sampleEngine.channels.MainVoltage)  
#Enable USB channels  
engine.enableChannel(sampleEngine.channels.USBCurrent)  
engine.enableChannel(sampleEngine.channels.USBVoltage)  
#Enable Aux channel  
# engine.enableChannel(sampleEngine.channels.AuxCurrent)  
#Set USB Passthrough mode to 'on,' since it defaults to 'auto' and will turn off when sampling mode begins.  
Mon.setUSBPassthroughMode(op.USB_Passthrough.On)  
  
engine.enableCSVOutput("USB Example.csv")  
engine.startSampling(numSamples)