Tentative Power Report
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Item# of itemsExpected Current (mA)
Total Estimated
Measured Current (mA)Total Current (mA)Uncertainty (%)Margin(±)Conditions of Testing
Amphours (Ah)
Being Powered by 5V on PCB
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Motors6373.32239.875045005225Motors running at maximum speed Forward2.2681.62Powered by Battery
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Bluetooth Module18.58.59.49.450.47In use, with LED test0.00473760.003384
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Ultrasonic Sensor215302.975.9450.297In use testing distances0.002993760.0021384
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Servos2450900831662541.5Range from 41-120 using
servo controller and 9V
0.0836640.05976
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LED Headlights2200400111222511.16V battery pack0.1118880.07992
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Arduino Mega1480480122.19122.1956.1095Measured with 9V battery
source with motors/servos/
ultrasonic sensors/bluetooth
connected to arduino
0.061583760.0439884
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Motor Shields335.7107.142.8128.41012.84Calculated using specifications
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Encoders61006001006001060
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Total 4765.45753.93357.31652.899980722.0714148
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Total by Buck (mA)2525.61253.93132.31650.631980720.4514148
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Total by Battery (mA)2239.845002252.2681.62
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Allocation Battery (Ah)7Allocation Buck (Ah)3.6
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Total Power (Ah)2.268Total Power (Ah)0.63198072
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Total Margin (Ah)0.1134Total Margin (Ah)0.066687516
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Contingency 4.6186Contingency2.901331764
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Based off of power report of Generation 6. Estimated current determiend by measured current.
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Current Limit from Buck Converter
bluetooth
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3.6 A
8.3 mA when connected to Power
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9.4 max when connected to ground
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