bufonete / chip parar buggens

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flux

1:49

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Tu objetivo: alimentar WS2812 a 5V desde una Li‑ion 3.7V y actualizar el cargador para sostener esa ruta de potencia.
Plan:
  1. Añadir un elevador Boost Converter a 5V dimensionado a tus LEDs, con capacitores de entrada/salida y un diodo Schottky en serie.
  2. Reemplazar el cargador por uno con power‑path (load sharing) para operar mientras carga, con indicadores.
  3. Añadir adaptador de nivel 3.3V→5V (p.ej. 74AHCT125) y una resistencia serie de 300–500 Ω en la línea DATA a WS2812 (WS2812B); opcional: switch de potencia en el rail 5V LEDs.
  4. Conectar 5V y GND al conector de tiras, y la DATA desde U1; actualizar nets/BOM y revisar.
Para ajustar:
  • ¿Cuántos LEDs máx. y brillo esperado (corriente total)?
  • ¿Quieres que funcione mientras carga (power‑path)?
  • ¿Usaremos el conector existente J2 para batería y añadimos otro para la tira? Pulsa Start cuando listo.
Plan
#Goal
  • Add a 5V power rail generated from a 3.7V Li‑ion battery to drive WS2812 LEDs, and update the charger module to support boost conversion with power‑path (load sharing) operation so the system (including the ESP32-C3 SuperMini [U1]) and WS2812 LED strip can properly run while charging.
#Implementation plan
  1. Boost Converter and 5V Rail
    1. Select and add a boost converter capable of stepping up 3.7V to 5V with sufficient current for the LED load.
    2. Add recommended bulk capacitors at the boost converter output (and input as required) to stabilize the rail.
    3. Insert a series Schottky diode on the 5V rail for reverse polarity protection.
    4. Route the new 5V rail to the WS2812 LED connector and plan for multi-point power injection if a long strip is used.
  2. Charger Module & Power-Path Upgrade
    1. Replace or update the existing Li‑ion charger module with one supporting power‑path (load sharing) functionality to allow system operation during charging.
    2. Add status LEDs on the charger module accordingly and include polarity protection elements.
    3. Integrate the boost converter with the updated charger design to form a unified power subsystem.
  3. Data Level Shifter and WS2812 Interface
    1. Add a 3.3V to 5V level shifter using an AHCT gate or buffer (avoid auto translators such as TXS0108E) to interface the MCU [U1] GPIO with the WS2812 data line.
    2. Insert a 300–500 Ω resistor in series with the data line to the WS2812 LEDs.
    3. Include a power‑gating switch (P‑MOS or load switch) on the 5V rail for the LED load.
  4. System Integration & Connectivity
    1. Connect the new 5V rail to the WS2812 connector and ensure a proper common GND reference with the ESP32-C3 SuperMini [U1].
    2. Update net connections, BOM, and perform ERC/availability checks.
#Success criteria
  • The booster converter reliably outputs 5V from the 3.7V Li‑ion battery with adequate current for the WS2812 load under operating conditions.
  • The charger module supports power‑path operation allowing the MCU and LED strip to run while charging.
  • The data level shifting and series resistor correctly interface the MCU GPIO with the WS2812 data input, and the power‑gating switch functions as expected.
  • All schematic nets and BOM entries are updated and verified through ERC with no errors.
Especificar carga LEDs
Habilitar power-path
Conector para tira
Seleccionar boost converter
Agregar diodo Schottky
201 days
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U1
J1
SW2
U1 GND - SW2 P1
U1 GND - SW2 P1
SW1

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