DOC: SPII2CHDWBrief - V2.71 07/25/2017
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Data Format and Communications
LadyBug sensors employ a standard I2C 7-bit addressing scheme with bits 0-6 as address and bit-
7, the eighth bit as a direction bit
(R/W̅)
. All messages begin by the user (master) issuing a
standard I2C
start condition
and terminate with a standard I2C
stop condition
. Each byte must be
acknowledged
by the receiver of the data. The figure below details an I2C message with address
information followed by a byte of data, which would normally contain header or instruction
information as detailed later in this document.
Figure 7 - I2C Address & Data
