Install sysbench that will be used to benchmark the CPU.Ensure you have Python 3 & pip3 installed.Please see my guide on how to setup a Pi to run in headless mode. without a display, keyboard and mouse) and will be using ssh to control the Pi. I have installed Raspberry Pi OS Lite onto a microSD card and configured the Pi to run in headless mode (i.e. NOTE: Don’t try this at home unless you know what you are doing and take safety precautions. I did not know before hand how much current the units will consume so I rigged up a USB charger using a double socket face plate that has a 3.2A USB charger built in. The Pi is held in place (in the air since I don’t know how hot it will get) using the Third Hand tool and I measure the power consumption using a Uni-T UT658B. The latest Raspberry Pi OS Lite (-raspios-buster-armhf-lite) is installed on a SanDisk Ultra A1 (Class 10) 32GB microSD card. The Raspberries will be running headless and only be connected to the USB power supply and my local WiFi network. I will be using a brand new unopened Raspberry Pi Zero W (v1.1) and Raspberry Pi Zero 2 W with no active (fan) or passive (heatsink) cooling and no case or GPIO headers. Here is a comparison of the Raspberry Pi Zero W v1.1 (Top) and Raspberry Pi Zero 2 W (Bottom).
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