22 General

General Commands

These commands are available globally, regardless of the active mode.
They are used to manage the firmware, control settings, or switch modes.

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🧩 Commands

Arguments in < > are required, while arguments in [ ] are optional.

Command	Description
help	Show the list of available commands
man	Opens a firmware guide (quick start, examples, etc)
system	Opens an interactive shell for system commands
mode <name>	Change the active mode (uart, i2c, etc.)
profile	Opens a shell to load and save pins configuration
wizard <pin>	Monitor a pin and detect signal type
logic <pin>	Enable logic analyzer on the ESP32 display
analogic <pin>	Read and display analog values of the given pin on the ESP32 display
P	Enable internal pull-up resistors
p	Disable internal pull-up resistors

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⚙️ System shell

• 📊 System summary: High-level snapshot: model, firmware version, uptime, memory size.
• 📟 Hardware info: Static details: chip family/revision, cores/clock, capabilities (Wi-Fi/BT), flash.
• 🗄️ Memory: Live RAM view: total/free heap, PSRAM stats (if present).
• 🧩 Partitions: Flash layout: partition table and partition usage.
• 🗂️ LittleFS: Filesystem tools: total/used bytes.
• 🧰 NVS stats: Non-Volatile Storage overview.
• 📒 NVS entries: Inspect actual keys: namespaces, types.
• 🌐 Network: Connectivity status: Wi-Fi mode/SSID/RSSI/IP, DHCP, gateway/DNS.
• 🔄 Reboot: Reboot the device after confirmation
• 🚪 Exit: Leave the System Shell and return to the previous menu.

📝 Notes

• You can type mode or m without arguments to select the current mode. You can also type m uart or mode I2C.

• The P and p commands enable or disable pull-up resistors intelligently, based on the currently active mode.

• The behavior is context-sensitive and applies only to relevant pins:

Mode	Affected Pins	Description
UART	RX	Enables/disables pull-up on receive pin
HDUART	IO	Enables/disables pull-up on shared I/O
1WIRE	DQ	Controls pull-up on 1-Wire data line
I2C	SDA, SCL	Enables/disables pull-ups on both lines
SPI	MISO	Controls pull-up on MISO input line
Others	—	Pull-ups are not applicable

📌 Example Usage

help
system      # open system shell
mode uart   # direct switch to UART
m           # select mode
mode        # select mode
m spi       # direct switch to SPI
logic 1     # Logic start on pin 1
analogic 1  # analogic start on pin 1
wizard 1    # Analyze pin activity
P           # enable pull-up
p           # disable pull-up

▶️ Demo