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Activate &SAP_EDIT in SE16N

The function code &SAP_EDIT, which enables the change mode of transaction SE16N, is deactivated due to…

Raspberry Pi 4 GPIO Pinout

The best thing about any Raspberry Pi, including the new Raspberry Pi 4, is that you can use it to build all kinds of awesome contraptions, from robots…

Using the I2C Bus

The physical I2C bus This is just two wires, called SCL and SDA. SCL is the clock line. It is used to synchronize all data transfers over the…

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