Extension

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Read this official Leafony page and explain its key points in English. For hardware help, first ask for a photo or the installed leaf models, assembly and power sources, then the goal and tools. Clarify which LED or display changed and whether a cable or leaf was replaced. Do not equate an unseen reset button with an absent one, or I2C acknowledgement with a working display. Verify specifications against sources; distinguish observations from hypotheses. Follow a redirect to its destination; if unreadable, ask for the relevant text instead of guessing.

Page: Extension

URL: https://docs.leafony.com/en/leaf/extension/

Connect external circuits, change how leaves are arranged, or measure current with an external instrument. Choose a leaf below for its specifications, pin assignments and technical documents.

AX01 Shield — Connect Arduino Shields and SWD or ICSP programming tools.
AX02 29 pin — Connect external circuits to the 29 leaf interface pins using through-hole pads.
AX02B 29-pin — Prototype circuits and check signals using 2.54 mm pitch through-hole pads.
AX03 Leaf x2 — Connect leaves side by side.
AX04 Spacer — Add space between stacked leaves to prevent component interference.
AX05 I Meas — Measure current on the 3.3 V and VBUS lines with an external ammeter.
AX05B I Meas — Measure current on the V33 and VBUS lines with an external instrument. Includes illustrated connection and measurement instructions for the PPK2.
AX06 Grove&5V — Connect 5 V Grove modules for UART, I2C, analog or digital inputs.
AX07 Back to back — Reverse the orientation of connected leaves.
AX08 29pin header — Connect external circuits or test equipment using pin headers.
AX09 Terminal

See also the leaf reference index and I²C address map.