AV03 AA BAT

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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: AV03 AA BAT

URL: https://docs.leafony.com/en/leaf/power/av03/

Description / headings (excerpt): Features / Specification / Dimension / Power Supply

Features

Supply 3.3V power to the leaves from a single AA battery. You can turn the power on or off with the switch and read the battery voltage from an MCU (microcontroller) leaf.

This leaf includes an AA battery holder, a step-up power supply circuit that converts the battery’s 1.5V to 3.3V, and an I2C-connected AD converter for measuring battery voltage.

Specification

Dimension

Item	Description
Dimension	W23×D60×H24.2mm

Power Supply

Item	Description
Part number	TPS61099YFFR
Battery voltage	0.7～3.8V
Output voltage	3.3V±2%
Controlling method	PWM/PFM Automatic switching control
Maximum output current	300mA @3.3V to 5V
Protection circuit	Over current protection / Thermal shutdown

AD Converter

Item	Description
Part number	ADC081C027CIMK
Resolution	8bit
Reference voltage	Vdd(3.3V)
Sample rate	188.9kSPS(max)
Interfaces	I2C (Address: 0x50)

Block diagram

Pinassign

Tips

About the switch

Item	Description
Switch	Switch for turning on and off the 3.3v power