These week I did testing with the Raspberry Pi to come up with a way to power the system for the required time. The first part of testing was coming up with a way to efficiently supply 5V, 5A or 25W of power to the Pi. I could not come up with a way to properly power the Raspberry Pi 5 and due to Jose's hardware integration, the system will go back down to the 4B. The 4B will need a power supply of 5V and 3A or a 15W. I used a power bank to test the system to see if it will suffice for power. I came up with a test that would first analyze the output voltage when plugged into its designated power supply. This was around 5.1-5.28 V and when I added strain to the Pi, the voltage dropped to 5.06V. I then connected the Pi to the Power Bank and it survived a boot, the first test was a success. I then tested the voltage and was receiving around 4.99-5.03V and when strain was added to the CPU, 4.95-4.98V was the drop. This test was also successful and was ready to move on to the next test. This test I went into the configuration and overclocked the CPU. I moved the CPUs frequency from 0.6 GHz to 1.75GHz. I then repeated the test by rebooting the system, which it survived. The voltage received from the output was 5.03V and can confirm that this test passed. I maxed out the CPU and GPU frequency and ran it at 2.14GHz. It survived a reboot without warning and successfully performed with strain on the CPU. The output voltage was roughly 4.90-5.0V and passed all tests. The power bank can be used to power the Pi.
I then kept the Raspberry Pi overclocked and played Youtube videos to keep the system working as if it were at a concert. I connected speakers to the Pi to draw power and connected a monitor to the HDMI to analyze the frequency changes. The system maintained the 2.14 GHz intended and stayed in the desired output voltage ranges. The plan of the test was to run the system until the power bank died. The system ran for four hours, our minimum requirement, and the power bank was still alive. This test was also a pass and will be used to power our system. The power bank has a capacity of 10,000 mAh and will be more than plenty for our system.
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