M5: replaced discrete'ish switchmode with module

uhppoted · Feb 24, 2025 · fb94966 · fb94966
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diff --git a/m5stack/NOTES.md b/m5stack/NOTES.md
@@ -30,6 +30,7 @@
 28. https://www.analog.com/en/resources/analog-dialogue/raqs/raq-issue-187.html
 29. https://www.reddit.com/r/PrintedCircuitBoard/comments/16oiaoh/review_request_first_attempt_at/?rdt=39790
 30. https://www.digikey.ca/en/articles/protecting-inputs-in-digital-electronics
+31. https://electronics.stackexchange.com/questions/680928/unidirectional-or-bi-directional-tvs-diodes-which-one-to-use
 
 ## Isolation
 1. https://medium.com/@jaydesai36/wiegand-interface-517a24107ede

diff --git a/m5stack/TODO.md b/m5stack/TODO.md
@@ -2,7 +2,7 @@
 
 ## PCB
     - [x] Replace SMD TranzOrbs with through-hole (for hand soldering)
-    - [ ] DC converter module
+    - [x] DC converter module
     - [ ] Use ISO7843 to drive WS2812
     - [ ] Lose the TX/RX jumpers and connect both UARTs
     - (?) Put ISOW7842 on 'other' side of RP2040

diff --git a/m5stack/kicad/library/uhppoted.kicad_sym b/m5stack/kicad/library/uhppoted.kicad_sym
@@ -110,6 +110,54 @@
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@@ -647,24 +695,24 @@
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@@ -734,7 +782,7 @@
         (alternate "SPI0 RX" input line)
         (alternate "UART1 TX" output line)
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@@ -764,7 +812,7 @@
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         (alternate "UART0 TX" output line)
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diff --git a/m5stack/kicad/library/uhppoted.pretty/1769205241.step b/m5stack/kicad/library/uhppoted.pretty/1769205241.step
diff --git a/m5stack/kicad/library/uhppoted.pretty/WPME-FISM_SMT-8_1769205241.kicad_mod b/m5stack/kicad/library/uhppoted.pretty/WPME-FISM_SMT-8_1769205241.kicad_mod
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