Build Flags & Limits

Override limits via build flags in platformio.ini:

build_flags =
  -DMCP_MAX_PINS=32
  -DMCP_MAX_TOOLS=32
  -DMCP_SERIAL_BUFFER=1024

Configuration Flags

Constant	AVR default	ESP32 default	Description
`MCP_MAX_PINS`	8	16	Max registered pins
`MCP_MAX_TOOLS`	8	24	Max registered tools
`MCP_SERIAL_BUFFER`	256 B	512 B	Serial read buffer
`MCP_MAX_BUFFERED_PINS`	2	8	Max pins with ring buffers
`MCP_MAX_BUFFER_SIZE`	20	300	Max samples per ring buffer
`MCP_DEFAULT_BUFFER_SIZE`	10	120	Default buffer size

How to Set

Add to your platformio.ini:

[env:esp32dev]
platform = espressif32
board = esp32dev
framework = arduino

build_flags =
  -DMCP_MAX_PINS=32
  -DMCP_MAX_TOOLS=32
  -DMCP_SERIAL_BUFFER=1024
  -DMCP_MAX_BUFFERED_PINS=16

lib_deps =
  bblanchon/ArduinoJson @ ^7