Devboard

Pineappley-Devboard-V1

Custom designed ESP32-S3-WROOM devboard designed for prototyping.

Hardware

• Microcontroller: ESP32-S3-WROOM with 16MB Flash 8MB PSRAM
• Display: Onboard 0.91 Inch OLED
• Communication: Native USB CDC
• Peripherals: GPIO, I2C, SPI, ADC, PWM

PCB

I designed the PCB myself in KICAD. The board includes an onboard AMS1117 3.3 voltage regulator, filtered by 10uF and 0.1uF capacitors.
There is a power indicator LED on the left side of the board.
The BOOT and RESET buttons work perfectly along with the onboard addressable LED and OLED display.

Onboard Mapping

• Display: SCL: IO9 SDA: IO8
• LED: IO2

Programming

This project is built on the PlatformIO and Arduino Framework.
You can upload standard Arduino C++ to the devboard via the USB-C port.

Ensure the Pineappley Devboard is in bootloader mode.
Do this by powering up the board then holding the BOOT button (rightmost), pressing the RESET (leftmost) button once then releasing the BOOT Button.

platformio.ini below

[env:esp32-s3-devkitc-1]
platform = espressif32
board = esp32-s3-devkitc-1
framework = arduino

monitor_speed = 115200

build_flags = 
    -DARDUINO_USB_MODE=1
    -DARDUINO_USB_CDC_ON_BOOT=1
    -DBOARD_HAS_PSRAM

board_build.arduino.memory_type = dio_opi
board_build.flash_mode = dio
board_upload.flash_size = 16MB
board_upload.maximum_size = 16777216

lib_deps =
    adafruit/Adafruit SSD1306 @ ^2.5.9
    adafruit/Adafruit GFX Library @ ^1.11.9