if you write your own arduino code. you can use your KC868-A6 with KinCony ATF SD Card module.
KC868-A6 have a extender "serial port" on PCB. You can use these two pins connect with AFT module. just two boards connect with serial port.
![[Image: KC868-A6-1_05.jpg]](https://www.kincony.com/images/KC868-A6/KC868-A6-1_05.jpg)
![[Image: esp32-sd-card-pins.jpg]](https://www.kincony.com/images/ATF/esp32-sd-card-pins.jpg)
About ATF details , you can check at here: https://www.kincony.com/esp32-sd-card-module.html
About ATF arduino demo source code , you can check at here: https://www.kincony.com/forum/forumdisplay.php?fid=57
KC868-A6 have a extender "serial port" on PCB. You can use these two pins connect with AFT module. just two boards connect with serial port.
About ATF details , you can check at here: https://www.kincony.com/esp32-sd-card-module.html
About ATF arduino demo source code , you can check at here: https://www.kincony.com/forum/forumdisplay.php?fid=57