Difference between revisions of "I2C-RPT"
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* Connects directly to I2C port on the [[Blue Pill Hub]] | * Connects directly to I2C port on the [[Blue Pill Hub]] | ||
** I2C address offset = 0x0 | ** I2C address offset = 0x0 | ||
| − | ** [[ | + | ** [[BLACK-PILL-HUB]] is set to offset=0x1 so it does not conflict |
** Uses 4x of [[I2CIO-8]] cards | ** Uses 4x of [[I2CIO-8]] cards | ||
* [https://github.com/land-boards/lb-Arduino-Code/tree/master/LBCards/ODAS/ODASTESTER ODAS Tester Github Repo] | * [https://github.com/land-boards/lb-Arduino-Code/tree/master/LBCards/ODAS/ODASTESTER ODAS Tester Github Repo] | ||
Revision as of 22:55, 31 March 2022
Features
- I2C Hub / Repeater / Replicator / Multiplexer / De-multiplexer
- Four I2C Ports
- Host port Controlled via I2C
- PCA9544A IC Multiple vendors
- 3.3V or 5V host operation
- 3.3V or 5V slave ports operation
- Voltage translation between the ports
- Example: A Raspberry PI which runs 3.3V can control an I2C device which runs at 5V
- Interrupt line on each channel and host
- 100KHz/400KHz operation
- On-board termination resistors
- 49x49mm form factor
- 4 solid 4-40 mounting holes
- Arduino driver and example code
- Raspberry Pi example code
Drivers/Example Code
- GitHub Repo - Arduino Driver code
- Github Repo - Example code
Schematic
Testing
- Arduino Based Test Station
- Connects directly to I2C port on the Blue Pill Hub
- I2C address offset = 0x0
- BLACK-PILL-HUB is set to offset=0x1 so it does not conflict
- Uses 4x of I2CIO-8 cards
- ODAS Tester Github Repo
