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Component Datasheets

Official datasheets and product pages for every component in the project. Links point to manufacturer or distributor documentation.

Microcontroller​

ESP32-S3 — Espressif

Key sections:

  • Pin definitions: Table 2–4 in the datasheet
  • GPIO matrix: Chapter 5 in the Technical Reference Manual
  • SPI/I2C/I2S peripherals: Chapters 26–29

Display​

GDEY042T81-FL02 — Good Display

  • Product page — search "GDEY042T81"
  • Driver IC: SSD1683 — SSD1683 datasheet
  • Adapter: ESP32-FTS02 — available from Good Display with the display

Key sections in SSD1683 datasheet:

  • p.7: Absolute maximum ratings (VCC, input voltage limits)
  • p.11: BUSY pin behaviour (HIGH = busy, LOW = ready)
  • p.23: Initialisation sequence (required command sequence before first use)
  • p.40: Timing diagrams (RST pulse width, BUSY timeout)

Real-Time Clock​

DS3231 — Analog Devices (Maxim)

Key sections:

  • p.11: Register map (seconds, minutes, hours — all BCD encoded)
  • p.13: Alarm registers (two programmable alarms)
  • p.18: Electrical characteristics (pull-up sizing, operating voltage)

Audio Amplifier​

MAX98357A — Analog Devices (Maxim)

Key sections:

  • p.1: SD pin truth table (shutdown / channel select)
  • p.7: Electrical characteristics (VDD range, input voltage levels)
  • p.13: Application circuit (shows required bypass capacitors — included on breakout)

LittleFS and Flash Storage​

ESP-IDF LittleFS component:

mklittlefs (image builder):

ESP-IDF partition table:

ESP-IDF Documentation​

Libraries​