
Ultra DB X51 v1
ExploreEmbedded/8051_DevelopmentBoard
Design files and sample code for 8051 development Ultra Boards

RoboticsBoard is an open-source printed circuit board by rcardenes, from the rcardenes/RoboticExperimentsPCB repository on GitHub. It is a 2-layer board of 51.5 × 41 mm with 16 parts on 12 nets, routed with 145 tracks and 2 vias.
It is built around the L293D. Its parts include 12 connectors, 1 capacitor, 1 resistor, 1 IC and 1 diode.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 1 | 100µF | Capacitor_THT:CP_Radial_D4.0mm_P2.00mm | C1 |
| 1 | 10k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1 |
| 1 | Center | Connector_PinHeader_2.00mm:PinHeader_1x03_P2.00mm_Vertical | J6 |
| 1 | EN+1 | Connector_PinHeader_2.00mm:PinHeader_2x01_P2.00mm_Vertical | J11 |
| 1 | IP/MOTOR | Connector_PinHeader_2.00mm:PinHeader_1x04_P2.00mm_Vertical | J10 |
| 1 | Ip1 | Connector_PinHeader_2.00mm:PinHeader_1x03_P2.00mm_Vertical | J5 |
| 1 | L293D | Package_DIP:DIP-16_W7.62mm_Socket | U1 |
| 1 | Op1_Left | Connector_PinHeader_2.00mm:PinHeader_2x01_P2.00mm_Vertical | J3 |
| 1 | Op1_Right | Connector_PinHeader_2.00mm:PinHeader_2x01_P2.00mm_Vertical | J4 |
| 1 | Op3_Left | Connector_PinHeader_2.00mm:PinHeader_2x01_P2.00mm_Vertical | J1 |
| 1 | Op3_Right | Connector_PinHeader_2.00mm:PinHeader_2x01_P2.00mm_Vertical | J2 |
| 1 | Power | Connector_PinHeader_2.00mm:PinHeader_2x01_P2.00mm_Vertical | J12 |
| 1 | RV_Bottom | Connector_PinHeader_2.00mm:PinHeader_2x01_P2.00mm_Vertical | J9 |
| 1 | RV_Top | Connector_PinHeader_2.00mm:PinHeader_2x01_P2.00mm_Vertical | J8 |
| 1 | Red LED | LED_THT:LED_D3.0mm | D1 |
| 1 | Right | Connector_PinHeader_2.00mm:PinHeader_1x03_P2.00mm_Vertical | J7 |

ExploreEmbedded/8051_DevelopmentBoard
Design files and sample code for 8051 development Ultra Boards

NikodemBartnik/Small-Projects
All of smaller projects (Arduino, PCBs, electronics, code)

geno543/Redropi_highway
the project aims to detect asteroids and meteor movement using high-quality cameras and radar detection methods using an AI model for accurate analysis, and it classifies bodies be in three categories: non-meteor…


harrislab-brown/DropGen
DropGen uses a fluid reservoir and a piezoelectric buzzer to precisely and repeatably dispense small droplets on demand.



It measures 51.5 × 41 mm and has 2 copper layers, 1.6 mm thick.
16 parts, built around the L293D. 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.
From the rcardenes/RoboticExperimentsPCB repository on GitHub, at the commit this page was made from: the board is RoboticsBoard.kicad_pcb and its schematic RoboticsBoard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask rcardenes before reusing the design.