1. Download and install the latest Arduino IDE ```Windows Installer``` from [arduino.cc](https://www.arduino.cc/en/Main/Software) 2. Download and install Git from ...
I have code that has been working for a long time. It uses hardware SPI to communicate with a couple devices. After updating from Arduino IDE 2.0.4 to Arduino IDE 2.1.0, hardware SPI no longer works.
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