419d85209e
hw: Final fixes for Rev 1.2
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- Move RC522 connector a bit further away from the MAX98375 module
footprint, so a JST-XH connector can be used here too.
- Update custom rules and fix some DRC warnings (no netlist and layout
changes).
Signed-off-by: Matthias Blankertz <matthias@blankertz.org >
2025-11-10 21:45:57 +01:00
0f4f72253c
hw: Update metadata, move silkscreen board name + rev
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No netlist or routing changes.
Signed-off-by: Matthias Blankertz <matthias@blankertz.org >
2025-11-10 19:19:28 +01:00
08fdb75297
hw: Add GND point for MAX98357 gain config
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Add a through-hole pad connected to GND next to the MAX98357 gain config
resistor to allow the user to select from all possible gains.
Signed-off-by: Matthias Blankertz <matthias@blankertz.org >
2025-11-08 13:47:10 +01:00
d28f0b1c0c
hw: Smaller 'production' version of board w/o keys and direct RC522 mount
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Signed-off-by: Matthias Blankertz <matthias@blankertz.org >
2025-11-07 22:52:34 +01:00
9147bab5bb
hw: Add fifth button, make traces wider
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Signed-off-by: Matthias Blankertz <matthias@blankertz.org >
2025-11-07 21:02:55 +01:00
834e07966a
hw: Cleanup schematic style, fix ERC violations
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No netlist changes.
Signed-off-by: Matthias Blankertz <matthias@blankertz.org >
2025-10-12 12:08:37 +02:00
e8beb4c8f7
hw: Use new and improved RPi Pico symbol in schematic
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Signed-off-by: Matthias Blankertz <matthias@blankertz.org >
2025-10-12 12:08:37 +02:00
09c8f522b8
hw: Clean up schematic, add RUN reset
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Clean up schematic and put battery power, buttons and run/reset in
subblocks.
Add missing switch on RUN to reset the RP2040. In the PCB this is
actually a jumper instead of a switch right now, so it fits in the
existing layout.
Signed-off-by: Matthias Blankertz <matthias@blankertz.org >
2025-09-02 22:17:59 +02:00
0ce0b51f1c
Add battery charger, PCB rev 1
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Signed-off-by: Matthias Blankertz <matthias@blankertz.org >
2025-09-02 22:17:59 +02:00
34f9a44cdb
schematic: Fix I2S_SD pullup
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Sparkfun I2S audio board already has MAX98357A SD pin pullup for mono
mode, so external pullup is redundant and can actually cause issues.
Remove it.
2025-07-22 22:07:44 +02:00
e2895589f1
schematic: Update to KiCad 9 and some minor fixes
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- Add gain setting resistor for I2S Amp
- Add three pushbuttons
2025-04-01 21:21:48 +02:00
096bd8a5cd
schematic: Add WS2812 / Neopixel on GPIO16
2024-05-31 15:17:16 +02:00
413433749c
Swap I2S LRCLK and DCLK for compatibility with micropython I2S
2024-04-30 09:44:21 +02:00
b1b822a306
Add initial schematic
2024-04-18 23:51:56 +02:00
