60 lines
No EOL
1.1 KiB
Markdown
60 lines
No EOL
1.1 KiB
Markdown
---
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title: iPod Shuffle 3rd Gen attempts
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date: 2025-12-11
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modified: 2025-12-11
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draft: true
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---
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Parts:
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- Charging Circuit
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- 
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- Inputs:
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- Seems to take 5V
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- Outputs
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- VBAT to Battery? (is that what the connection to BAT0 does??)
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- VCC (3V) to system
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- Battery
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- Input: VBAT??
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- Output: VBAT??
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- MicroSD card Reader
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- **Inputs**:
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- VBUS? VSYS?
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- CLK
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- DI
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- CS
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- CD???
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- VCC
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- **Outputs**:
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- DO
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- TRRS Jack
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- Outputs:
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- Sleeve (is this analog or digital, if we're only checking for button press)
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- Right (Analog)
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- Left (Analog)
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- RSw/LSw (floats when plug is inserted, why are there two? Mono?)
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- BT Chip + Antenna (Built into SoC, assuming ESP32-S3)
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- Inputs:
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- Outputs:
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- Switch
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- Output state
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- LED
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- Input State
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- SoC
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- Assuming ESP32-S3
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- Outputs:
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- CLK
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- CS
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- TRRS Left (Analog)
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- TRRS Right (Analog)
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- SD DI
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- LED
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- USB D+/D-
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- Inputs:
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- TRRS Sleeve (Analog?)
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- SD DO
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- VCC
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- Switch
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- USB D+/D-
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- LSw, RSw (?)
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- USB-C Port
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- 
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- Outputs VBUS(5V?), USB D+/- |