# Force Unit Breakout Board ## Description An I2C extension board with LTC4311 bus accelerator and shielded ethernet port. This board is for the target side. With proper controller side hardware and an SSTP ethernet cable, the board provides robust i2c communication over 10ft(could be longer, haven't tested it yet) with a bitrate of 400kHz under a noisy environment( near motors, power cables, switches, etc). The breakout board receives power from the controller side and can power i2c device. The board also supports drdy trigger, which is available on many i2c sensors. #project #I2C #shielded #robust #ltc4311 #long-distance ## Project Details - **Owner:** suckatpcbb - **Created:** 7/16/2024 - **Last Updated:** 2/24/2025 - **Visibility:** Public - **Pin Type:** Unspecified - **Part Type:** Terminal ## Key Components ### J1 — [R-RJ45R08P-B000](https://www.flux.ai/suckatpcbb/r-rj45r08p-b000~2f.md) - Manufacturer Part Number: R-RJ45R08P-B000 **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] - 4 [pin 4] - 5 [pin 5] - 6 [pin 6] - 7 [pin 7] - 8 [pin 8] - MH3 [pin MH3] - MH4 [pin MH4] ### J2 — [Pin Header 01x02 2.54mm Vertical](https://www.flux.ai/jharwinbarrozo/generic-pin-header-01x02-2p54mm-vertical~4uy.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - P1 [pin 1] - P2 [pin 2] ### J3 — [Adafruit NAU7802 Breakout Pin Header](https://www.flux.ai/suckatpcbb/adafruit-nau7802-breakout-pin-header~sg.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Connector **Pins:** - AVDD [pin 2] - DRDY [pin 6] - GND [pin 3] - SCL [pin 4] - SDA [pin 5] - VCC [pin 1] ### U1 — [LTC4311ISC6#TRPBF](https://www.flux.ai/jecstronic/ltc4311isc6trpbf~9fd.md) - Datasheet URL: https://www.analog.com/media/en/technical-documentation/data-sheets/4311fa.pdf - Manufacturer Part Number: LTC4311ISC6#TRPBF - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit - Manufacturer Name: Analog Devices Inc. **Pins:** - BUS1 [pin 6] - BUS2 [pin 4] - ENABLE [pin 3] - GND [pin 2] - GND [pin 5] - VCC [pin 1] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/suckatpcbb/force-unit-breakout-board~ri](https://www.flux.ai/suckatpcbb/force-unit-breakout-board~ri).* --- *Generated from [https://www.flux.ai/suckatpcbb/force-unit-breakout-board~ri](https://www.flux.ai/suckatpcbb/force-unit-breakout-board~ri)*