I²C Address Space¶
The following table lists the I²C addresses used across the HARDWARIO TOWER - Industrial IoT Kit system.
All addresses are provided in a 7-bit format.
Important
Addresses 0x00-0x07 and 0x78-0x7F are I2C reserved addresses and cannot be used.
Address |
Chip |
HARDWARIO TOWER product |
Remark |
---|---|---|---|
0x08 |
NT3H2011 |
Changed from default to avoid collision |
|
0x19 |
LIS2DH12 |
Channel I2C0 |
|
0x20 |
TCA9534 |
IQRF Module |
|
0x21 |
TCA9534 |
||
0x22 |
TCA9534 |
RFID Module |
|
0x23 |
TCA9534 |
||
0x24 |
TCA9534 |
Ethernet Module |
|
0x25 |
TCA9534 |
Audio Module |
|
0x26 |
TCA9534 |
Reserved |
|
0x27 |
TCA9534 |
Reserved |
|
0x38 |
TCA9534A |
||
0x39 |
TCA9534A |
Reserved |
|
0x3a |
TCA9534A |
Reserved |
|
0x3b |
TCA9534A |
Default address |
|
0x3c |
TCA9534A |
||
0x3d |
TCA9534A |
Reserved |
|
0x3e |
TCA9534A |
Default address |
|
0x3f |
TCA9534A |
Alternate address |
|
0x40 |
SHT20 |
||
0x40 |
HDC2080 |
Default address |
|
0x41 |
HDC2080 |
Alternate address |
|
0x44 |
OPT3001 |
Default address |
|
0x45 |
OPT3001 |
Alternate address |
|
0x48 |
TMP112 |
Default address |
|
0x49 |
TMP112 |
Alternate address |
|
0x49 |
TMP112 |
Channel I2C0 |
|
0x4b |
TLA2021 |
RS-485 Module ADC |
Channel I2C0 |
0x4d |
SC16IS740 |
I2C to UART bridge |
Channel I2C0 |
0x4e |
SC16IS750 |
RS-485 Module I2C to UART bridge |
Channel I2C0 |
0x4f |
SC16IS750 |
RS-232 Module I2C to UART bridge |
Channel I2C0 |
0x58 |
SGP30 |
Default address |
|
0x5f |
HTS221 |
||
0x60 |
MPL3115A2 |
||
0x64 |
ATSHA204A |
Channel I2C0 |
|
0x64 |
ATSHA204A |
Channel I2C1 |