01 HiZ

HiZ Mode (High Impedance)

This is the default mode when the firmware starts, it disables all lines.

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🧩 Commands

There are no specific commands available in HiZ mode.

You can still use global commands like:

Command	Description
mode <name>	Switch to another mode
system	Opens an interactive shell for system commands
man	Opens a firmware guide (quick start, examples, etc)
profile	Opens a shell to load and save pins configuration
alias	Create shortcuts for a command or multiple commands
repeat <count> <cmd>	Repeat a command or multiple commands
wizard <gpio>	Monitor a GPIO and detect signal type
listen <gpio>	GPIO activity to audio, using I2S configured output
logic <gpio>	Display a logic analyzer on the ESP32 screen
analogic <gpio>	Read and display analog values of the given GPIO on the ESP32 screen
help	Display available commands
P, p	Pull-up management (has no effect in HiZ mode)

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📝 Notes

⚠️ Note on ESP32 hardware limitations: The term HiZ comes from the original Bus Pirate, where GPIOs could be fully tri-stated.
On the ESP32, there is no true "disconnected" state — instead, we configure all GPIOS as inputs with no pull-up or pull-down resistors.

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📌 Example Usage

mode         # open mode selector
logic 1
analogic 1
wizard 1
repeat 5 scan
repeat 10 set 1 L || delayms 10 || set 1 H || delayms 100
listen 1
alias
help
system
P
p

▶️ Demo