Backpack
Backpack is an open source PCB design by osrf: a 4-layer, 138 × 50 mm board with 54 components (25 distinct parts). It is built around the VN-100, ISOW7842DWER, MAX3221EIPWR, SN74AXCH8T245PWR and more.
the Open Vision Computer
The idea for OVC3 is to dramatically reduce costs from OVC2 by using a mass-produced high-density module for the FPGA/SoC, RAM, and so on. Ideally this module will contain a Zynq UltraScale+ SoC with I/O that can function as a USB3 transceiver.
Some candidate modules: Trenz TE0820 (40mm x 50mm) Trenz TE0803 / TE0808 (52mm x 76mm) UltraZed Enclustra Mercury
For the smallest front cross-sectional area, it would be necessary to keep the "sensor" and "compute" portions on separate boards. Unfortunately, this would also increase small-quantity production costs.
Built around
Parts list
54 components, 25 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | VN-100 DNP | VN-100 | U1 |
| 2 | ISOW7842DWER ISOW7842 Texas Instruments | SOIC-16W_7.5x10.3mm_P1.27mm | U2, U3 |
| 1 | MAX3221EIPWR MAX3221E Texas Instruments | TSSOP-16_4.4x5mm_P0.65mm | U4 |
| 2 | SN74AXCH8T245PWR SN74AXCH8T245 Texas Instruments | TSSOP-24_4.4x7.8mm_P0.65mm | U5, U6 |
| 1 | SN74AVCH2T45DCUT SN74AVCH2T45 Texas Instruments | VSSOP-8_2.3x2mm_P0.5mm | U7 |
| 1 | FT230XS-R FT230XS FTDI | SSOP-16_3.9x4.9mm_P0.635mm | U8 |
| 1 | uIMU-2 DNP | uIMU-2 | U9 |
| 1 | WM15144 GPIO1 Molex | Molex_Nano-Fit_105313-xx05_1x05_P2.50mm_Horizontal | J1 |
| 1 | 20021111-00030T4LF TO_CAMERA Amphenol/FCI | PinHeader_2x15_P1.27mm_Vertical | J2 |
| 1 | ROOT CONSOLE DNP | PinHeader_1x03_P2.54mm_Vertical | J3 |
| 1 | WM15142 RS232 Molex | Molex_Nano-Fit_105313-xx03_1x03_P2.50mm_Horizontal | J4 |
| 1 | 629105150521 USB_B_Micro Wurth | USB_Micro-B_Wuerth_629105150521_CircularHoles | J5 |
| 1 | IMU_UART2 DNP | PinHeader_1x03_P2.54mm_Vertical | J6 |
| 1 | IMU_UART0 DNP | PinHeader_1x03_P2.54mm_Vertical | J7 |
| 1 | debug DNP | PinHeader_2x05_P2.54mm_Vertical | J8 |
| 1 | debug DNP | PinHeader_1x03_P2.54mm_Vertical | J9 |
| 1 | LTST-C191KRKT RXLED Lite-On | LED_0603_1608Metric | D1 |
| 1 | LTST-C191KGKT TXLED Lite-On | LED_0603_1608Metric | D2 |
| 2 | BLM18KG601SN1D ferrite Murata | R_0603_1608Metric | FB1, FB2 |
| 5 | GRM188R61A106KE69D 10u Murata | C_0603_1608Metric | C1, C4, C5, C8, C23 |
Show 5 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 19 | CL10B104KO8NNNC 100n Samsung | C_0603_1608Metric | C2, C3, C6, C7, C9, C10, C11, C12 +11 |
| 2 | GCM1885C2A470JA16D 47p Murata | C_0603_1608Metric | C20, C22 |
| 2 | RC0603FR-0727RL 27R Yageo | R_0603_1608Metric | R1, R2 |
| 2 | RC0603FR-07270RL 270R Yageo | R_0603_1608Metric | R3, R4 |
| 2 | RC0603FR-0710KL 10k Yageo | R_0603_1608Metric | R5, R6 |
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