EZO pH Circuit - Datasheet

5 parts
ASCII command string
Command (not case sensitive)Start
99 (0x63)
I
2
C address Write
Write
Stop
Start
I
2
C address
99 (0x63) Stop
Command
Sleep
Sending commands to device
A6
SDA
Start
Stop
SCL
A5 A4 A3 A2 A1 A0 W ACK ACK ACK
First letter of command
Last letter of command
The entire command as ASCII with all argumentsAddress bits
W = low
SCL
SDA
4.7k resistor
may be needed
0V0V
VCC
CPU
SCL SDA
SCL
SDA
VCC VCC
SDA
SCL
CPU
SCL SDA
SDA
(TX) (RX)
SCLSDA
(TX) (RX)
SCL
SDA
(TX) (RX)
SCL
Advanced
Example
r 0.1
44
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