Water Drinking Reminder Device

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Below is a summary of the schematic changes to add the Seeeduino XIAO ESP32-S3, the ST7789 1.3" TFT, and three push buttons with optional pull-up resistors.
Add the following components:
  1. Microcontroller (U1)
  2. Display (U2)
  3. Push Buttons
  4. Pull-up Resistors (if not using internal pull-ups):
  5. Ground Reference
Make the following connections:
  1. Power and Ground
  2. SPI Interface
    • U2 SCL → SCK pin on U1
    • U2 SDA → MOSI pin on U1
  3. Display Control
    • U2 RES → GPIO8 (example) on U1
    • U2 DC → GPIO10 (example) on U1
    • U2 BLK → 3.3V (or attach to a PWM pin on U1 if brightness control is desired)
  4. Push Buttons
    • S1 → GPIO0 on U1
    • S2 → GPIO1 on U1
    • S3 → GPIO2 on U1
    • The other pin of each switch → Ground
    • If external pull-ups are needed, connect R1, R2, and R3 from each GPIO pin to 3.3V.
You can use the "Apply changes" button to apply these suggestions to your schematic.
Check net connectivity
Add decoupling capacitors
Verify schematic wiring
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Files

Schematic

Layout

3D View

Schematic of Inevitable Lime Warp Drive
R1
Resistance
10kΩ
R3
Resistance
10kΩ
R2
Resistance
10kΩ
U1

Inevitable Lime Warp Drive

Inevitable Lime Warp Drive thumbnail