Zenith is a small single board computer made with the RK3328 which comes with 512 MegaBytes of DDR3 RAM. Zenith is built to run on battery backups along with USB Type-C power inputs. Features of zenith are:
- Quad core ARM Cortex-A53 CPU
- 512 MB DDR3 RAM
- SD support
- 100M ethernet
- HDMI out
- 24 bit audio
- 1x USB 3.0 2x USB 2.0
I made this SBC because i wanted to locally host some slack bots. There is literally no other reason. I have not compiled buildroot because i'll be using a prebuilt version from ROCK64. A small reason for this is because my laptop probably cannot handle compiling linux.
Check out this project on KiCanvas!
To check schematics, please go to the above link, imaging every page and putting it here would clutter the README..
- clone the repo and head to production:
git clone https://Github.com/Keyaan-07/Zenith
cd Zenith/hardware/production- go to your preferred PCB manufacturer and upload the gerber files there.
- get the PCBA option for both(or one) sides.
- Build the firmware from the buildroot repo.
- flash it to the SD card using rufus.ie
- plug the SD card in and start the board.
| Designator | Function | Value | Quantity | Price | Amount | Link |
|---|---|---|---|---|---|---|
| PCB | PCB | 85x55mm | 5 | 9.6 | 48 | https://jlcpcb.com/ |
| PCBA | Standard | PCBA | 2 | 42.75 | 85.5 | https://jlcpcb.com/ |
| BT1, BT2 | Battery Connectors | Battery_Cell | 4 | 0 | ||
| C0, C1, C10, C11, C12, C13, C14, C15, C16, C17, C18, C19, C2, C21, C22, C23, C24, C25, C26, C27, C28, C29, C3, C30, C31, C32, C33, C35, C37, C4, C40, C42, C47, C48, C5, C51, C52, C53, C54, C55, C58, C6, C62, C64, C67, C7, C70, C71, C74, C75, C8, C9 | Capacitor | 100n | 104 | 0.001 | 0.104 | https://www.lcsc.com/product-detail/C49062.html |
| C20, C34, C36, C38, C39, C41, C43, C44, C45, C46, C49, C50, C56, C57, C59, C63, C66 | Capacitor | 10u | 34 | 0.03 | 1.02 | https://www.lcsc.com/product-detail/C96446.html |
| C60, C61 | Capacitor | 15p | 4 | 0.0013 | 0.0052 | https://www.lcsc.com/product-detail/C277480.html |
| C65, C68 | Capacitor | 1u | 4 | 0.009 | 0.036 | https://www.lcsc.com/product-detail/C307385.html |
| C72, C73 | Capacitor | 47n | 4 | 0.0044 | 0.0176 | https://www.lcsc.com/product-detail/C2930549.html |
| D1 | LED | LED | 2 | 0.009 | 0.018 | https://www.lcsc.com/product-detail/C7496805.html |
| J1 | Ethernet magjack | - | 2 | 1.5 | 3 | https://www.lcsc.com/product-detail/C12074.html |
| J2 | HDMI | - | 2 | 1.5 | 3 | https://www.lcsc.com/product-detail/C916313.html |
| J3 | Micro SD Connector | - | 2 | 0.68 | 1.36 | https://www.lcsc.com/product-detail/C585350.html |
| J4 | UART header | - | 2 | DNP | DNP | DNP |
| J5 | Audiojack | - | 2 | 0.05 | 0.1 | https://www.lcsc.com/product-detail/C431535.html |
| J6, J7, J8, J9 | USB-C | - | 8 | 0.5 | 4 | https://www.lcsc.com/product-detail/C5156605.html |
| L1, L2, L3, L4, L5, L6 | Inductors | 2.2u | 12 | 0.03 | 0.36 | https://www.lcsc.com/product-detail/C45385204.html |
| Q1 | MOSFET | 2N7002 | 2 | 0.05 | 0.1 | https://www.lcsc.com/product-detail/C81445.html |
| Q2 | MOSFET | AON7262e | 2 | 0.58 | 1.16 | https://www.lcsc.com/product-detail/C176755.html |
| R1 | Resistor | 240 | 2 | 0.0009 | 0.0018 | https://www.lcsc.com/product-detail/C270354.html |
| R11, R17, R2, R26, R27, R3, R30, R31, R32, R33, R35, R38, R40, R5, R6, R8, R9 | Resistor | 10k | 34 | 0.0007 | 0.0238 | https://www.lcsc.com/product-detail/C7467266.html |
| R12, R41 | Resistor | 35k | 4 | 0.0015 | 0.006 | https://www.lcsc.com/product-detail/C180320.html |
| R13, R14, R15, R18, R19, R20 | Resistor | R | 12 | - | 0 | - |
| R16 | Resistor | 56k | 2 | 0.0008 | 0.0016 | https://www.lcsc.com/product-detail/C18164325.html |
| R21 | Resistor | 10m | 2 | 0.14 | 0.28 | https://www.lcsc.com/product-detail/C6250315.html |
| R22, R23, R24, R25, R34 | Resistor | 100 | 10 | 0.0009 | 0.009 | https://www.lcsc.com/product-detail/C270366.html |
| R28, R29 | Resistor | 0R | 4 | 0.0009 | 0.0036 | https://www.lcsc.com/product-detail/C106228.html |
| R36, R37, R39 | Resistor | 5.1k | 6 | 0.0007 | 0.0042 | https://www.lcsc.com/product-detail/C7467269.html |
| R4 | Resistor | 6.6k | 2 | 0.0008 | 0.0016 | https://www.lcsc.com/product-detail/C423452.html |
| U1 | RAM | NT5CB256M16ER-FL | 2 | 13.15 | 26.3 | https://www.lcsc.com/product-detail/C2841154.html |
| U10 | SoC | BQ29209DRBR | 2 | 0.76 | 1.52 | https://www.lcsc.com/product-detail/C139352.html |
| U2 | main IC | RK3328 | 2 | 8.65 | 17.3 | https://www.lcsc.com/product-detail/C2932939.html |
| U3 | ESD IC for HDMI | TPD12S016PWR | 2 | 0.8382 | 1.6764 | https://www.lcsc.com/product-detail/C201665.html |
| U4 | Buck | TPS565201 | 2 | 0.64 | 1.28 | https://www.lcsc.com/product-detail/C327676.html |
| U5 | Battery charger | BQ25690RBAR | 2 | 6.3 | 12.6 | https://www.lcsc.com/product-detail/C53283868.html |
| U6, U7, U8, U9 | Buck | TPS563252DRLR | 8 | 1.05 | 8.4 | https://www.lcsc.com/product-detail/C19188399.html |
| Y1 | Crystal | 24MHz | 2 | 0.58 | 1.16 | https://www.lcsc.com/product-detail/C41383245.html |
| 134.8488 |
here is the onshape link for the project