Getting Started
Last revision 2026/02/05
The article provides comprehensive instructions on configuring functional pads for address parameters in I2C and I3C communication modes, detailing the connection logic for different modes and how to switch between addresses by adjusting resistors.
Functional Pad Configuration Instructions
The functional pads are used to configure address parameters for I2C and I3C communication. The specific logic is as follows:
| Communication Mode | Address | Pad 0x47 | Pad 0x46 | I2C_Pull_Up Pad |
|---|---|---|---|---|
| I2C | 0x47 (Factory Default) | Connected | Disconnected | No Operation |
| I2C | 0x46 | Disconnected | Connected | No Operation |
| I3C | 0x47 | Connected | Disconnected | Disconnected |
| I3C | 0x46 | Disconnected | Connected | Disconnected |
Configuration Notes
- The sensor's factory default I2C address is 0x47. To switch to 0x46, remove the resistor at the I2C ADDR 0x47 pad and re-solder it to the 0x46 pad.
- When enabling I3C mode, the resistor at the I2C_Pull_Up pad must be removed first. The address switching method is the same as that for I2C.
- The matrix pads are only used for I2C/I3C address configuration. Switching between 4-wire SPI and 3-wire SPI must be implemented by operating the 0x13 register (3-wire SPI mode is not currently supported by the library).
Was this article helpful?