2 layers152.4 × 101.6 mm
8088-FE2010A SBC
skiselev/micro_8088
Micro 8088 - IBM XT Compatible Processor Board based on Faraday FE2010 chipset
72 parts412GPL-3.0
2 layers70 × 50 mm
Riscbot
kekiefer/riscbot8A simple LoFive RISC-V based two-wheel robot
- Size
- 70 × 50 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 19
- Nets
- 35
- Pads
- 94
- Tracks, vias
- 152, 0
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 31 Dec 2017
- Updated
- 31 Dec 2017
Overview
Riscbot is an open-source printed circuit board by kekiefer, from the kekiefer/riscbot repository on GitHub, published under the MIT licence. It is a 2-layer board of 70 × 50 mm with 19 parts on 35 nets, routed with 152 tracks and 0 vias.
It is built around the PN2222A. Its parts include 8 connectors, 4 resistors, 3 ICs, 2 diodes and 1 capacitor.
Main components
1README
README.mdRISCbot
Source files for the LoFive RISC-V RISCbot
Building software
This project leverages the freedom-e-sdk bsp, and can use a toolchain that is part of the freedom-e-sdk, or an external toolchain. You must define the following environment variables to build the project:
export BSP_BASE=/my/desired/location/freedom-e-sdk/bsp
export RISCV_OPENOCD_PATH=/my/desired/location/openocd
export RISCV_PATH=/my/desired/location/riscv64-unknown-elf-gcc-<date>-<version>After this, you can build the software as if you were building an example from the sdk:
make software upload PROGRAM=riscbot BOARD=freedom-e300-lofiveHardware design files
The directory pcb contains the KiCAD schematics used to prototype RISCbot.
Also included is a board layout that is complete to the best of my knowledge,
but please note that I have not actually fabricated this PCB as RISCbot was
hand-wired on a perforated circuit board.
Parts
19| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 220 | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2, R4 |
| 2 | LED | LEDs:LED_D5.0mm | D1, D2 |
| 1 | 2135 | riscbot:drv8835-rev | U2 |
| 1 | 220 | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3 |
| 1 | 2836 | riscbot:s9V11f5 | U1 |
| 1 | 5V_OUT | Pin_Headers:Pin_Header_Straight_1x02 | J6 |
| 1 | A_OUT | Pin_Headers:Pin_Header_Straight_1x02 | J5 |
| 1 | BAT | Pin_Headers:Pin_Header_Straight_1x02 | J2 |
| 1 | B_OUT | Pin_Headers:Pin_Header_Straight_1x02 | J3 |
| 1 | CP | Capacitors_THT:CP_Radial_D5.0mm_P2.50mm | C1 |
| 1 | DSM | Pin_Headers:Pin_Header_Straight_1x03 | J1 |
| 1 | GPIO | Pin_Headers:Pin_Header_Straight_1x05 | J8 |
| 1 | JTAG | Pin_Headers:Pin_Header_Straight_1x10 | J4 |
| 1 | PN2222A | TO_SOT_Packages_THT:TO-92_Inline_Wide | Q1 |
| 1 | SPI | Pin_Headers:Pin_Header_Straight_1x06 | J7 |
| 1 | lofive | riscbot:lofive | U3 |
Questions
How big is the Riscbot PCB?
It measures 70 × 50 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Riscbot use?
19 parts, built around the PN2222A. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Riscbot KiCad files?
From the kekiefer/riscbot repository on GitHub, at the commit this page was made from: the board is pcb/riscbot.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Riscbot design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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