1. SDC 2. HDMI 3. RTC 4. SingleStepper 5. IDE 6. DaisyChain / MPI 7. DriveWire 8. NekotOS 9. Internet

[broken] https://github.com/raspberrypi/pico-examples-rp2350/blob/a1/hstx/dvi_out_hstx_encoder/dvi_out_hstx_encoder.c

https://github.com/adafruit/circuitpython/blob/main/ports/raspberrypi/common-hal/picodvi/Framebuffer_RP2350.c

https://www.cnx-software.com/2024/08/15/raspberry-pi-rp2350-hstx-high-speed-serial-transmit-interface/ A closer look at Raspberry Pi RP2350’s HSTX high-speed serial transmit interface

https://dmitry.gr/?r=05.Projects&proj=27.%20rePalm#_TOC_0734fd58b98b17e23027547eec1258f5

https://dmitry.gr/?r=06.%20Thoughts&proj=11.%20RP2350 Why you should fall in love with the RP2350

https://hackaday.com/2024/08/20/close-up-on-the-rp2350-hstx-peripheral/

RTC: ( USD 0.25 to 0.52; 8 pin ) https://jlcpcb.com/parts/componentSearch?searchTxt=pcf8563 -- https://www.farnell.com/datasheets/1994603.pdf

SD Micro Socket: https://www.farnell.com/datasheets/1994603.pdf ( USD 0.16 ; SMT Assembly economic & standard)

https://www.amazon.com/WWZMDiB-Adater-Module-Support-Arduino/dp/B0B779R5TZ?source=ps-sl-shoppingads-lpcontext&ref_=fplfs&psc=1&smid=A1YZW40LYQY3L1&gQT=1

https://www.ti.com/lit/ds/symlink/sn74lvc125a.pdf

QUIIC Connector (I2C): https://www.sparkfun.com/qwiic-jst-connector-smd-4-pin-horizontal.html

CR2032 Battery Holder -- USD 0.17 Economic SMT -- https://jlcpcb.com/partdetail/QJ-CR2032_BS_61/C70377

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https://forums.raspberrypi.com/viewtopic.php?t=375277

https://github.com/adafruit/circuitpython/blob/main/ports%2Fraspberrypi%2Fcommon-hal%2Fpicodvi%2FFramebuffer_RP2350.c