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Original_Code_Pool_Kit/README.md

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Microprocessor

The Wi-Fi Pool Kit is controlled using an Adafruit Feather HUZZAH32 as its CPU. The HUZZAH is programmed using the Arduino IDE and uses an onboard ESP32 as its Wi-Fi transmitter.

ESP2 Board

PCB

The overall design of the PCB is quite simple. The CPU is powered and programmed through the panel-mount USB connector. The CPUs USB pin supplies the board's power bus with 5V.

Pool Kit PCB

Communication protocol

The CPU communicates with all peripheral sensors using the I2C data protocol. All data lines are directly connected to the CPUs I2C port. Using a different data protocol with this circuit board is not possible.

It is important to keep in mind that all Atlas Scientific components default to UART mode. When adding a new Atlas Scientific component to the kit, it must first be put into I2C mode.

Adding additional components of the same type, such as an additional pH or ORP sensor, is not hard to do. As mentioned above, you must set the device to I2C mode, and you must make sure that its I2C address is not the same as the already existing components.

The next table lists the default I2C address of Atlas Scientific components commonly added to this kit.