WK2168

To be able to have 8 uarts on the PvbrainV2 card 2 WK2168 cards are necessary.

It communicates via I2C.

-sda: GPIO41

-scl: GPIO40

or via SPI

mosi: GPIO6
miso: GPIO41
clk: GPIO40

Its configuration file is located in the base folder.

For an I2C configuration, you will need to move the DIP SWITCH "1" and "2" according to the desired address.

in the "base" folder you will have to uncomment "device_wk2168_i2c: !include device_wk2168_i2c.yaml" and comment "device_wk2168_spi: !include device_wk2168_spi.yaml" and leave the dip switch "3" on 0

For an SPI configuration, you will need to move DIP SWITCH "1" and "2" to 0 and put DIP SWITCH "3" to 1.

you will also need to do 2 soldering on the back of the wk2168 card.



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to end up in the "base" folder you will have to comment out "device_wk2168_i2c: !include device_wk2168_i2c.yaml" and uncomment "device_wk2168_spi: !include device_wk2168_spi.yaml"

https://github.com/SeByDocKy/pvbrain2/blob/main/pictures/wk2168_back_solder.png