2 layers178 × 145 mm
Ultra DB X51 v1
ExploreEmbedded/8051_DevelopmentBoard
Design files and sample code for 8051 development Ultra Boards
145 parts70
2 layers
8085 mini elevator system
GitGuru826004/mini_elevator- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 23
- Nets
- 43
- Pads
- 127
- Tracks, vias
- 175, 0
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 9 Mar 2026
- Updated
- 9 Mar 2026
Overview
8085 mini elevator system is an open-source printed circuit board by GitGuru826004, from the GitGuru826004/mini_elevator repository on GitHub. It is a 2-layer board with 23 parts on 43 nets, routed with 175 tracks and 0 vias.
It is built around the C8051F38C-GM and L293D. Its parts include 8 resistors, 6 switches, 3 ICs, 2 diodes and 1 capacitor.
Main components
2
C8051F38C-GM
QFN-32-EP(5x5)-40℃~+85℃ 10bit 16KB 2.25KB 2.7V~5.25V 25 51 Family 8 Bit Built-in FLASH QFN-32-EP(5x5) Microcontrollers (MCU/MPU/SOC) ROHSSilicon LabsMicrocontrollers (MCU/MPU/SOC)
L293D
DIP-16-40℃~+150℃ 1.2A 2 4.5V~36V 4mA 600mA DIP-16 Brushed DC Motor Drivers ROHSSTMicroelectronicsStepper Motor Driver
README
README.mdmini_elevator_system_using_8051
A mini elevator system for 5 floors using the C8051F3BC-GM microcontroller and L293D motor driver. Designed in KiCad with schematic and PCB layout. Features bidirectional motor control, GPIO-based logic, and floor indication via LEDs. Ideal for embedded systems practice.
Parts
23| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R3, R4, R5, R6 |
| 5 | SW_Push | Button_Switch_SMD:SW_DIP_SPSTx01_Slide_9.78x4.72mm_W8.61mm_P2.54mm | SW2, SW3, SW4, SW5, SW6 |
| 2 | 330 | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R7, R8 |
| 2 | LED | LED_THT:LED_D4.0mm | D1, D2 |
| 1 | 10uF | Capacitor_THT:C_Radial_D6.3mm_H5.0mm_P2.50mm | C1 |
| 1 | Battery_Cell | Battery:BatteryHolder_Keystone_3000_1x12mm | BT1 |
| 1 | Battery_Cell | Battery:BatteryHolder_Keystone_3008_1x2450 | BT2 |
| 1 | C8051F38C-GM | Package_DFN_QFN:QFN-32-1EP_5x5mm_P0.5mm_EP3.3x3.3mm_ThermalVias | U1 |
| 1 | D148K | Display_7Segment:D1X8K | U3 |
| 1 | L293D | Package_DIP:DIP-16_W7.62mm_SMDSocket_SmallPads | U2 |
| 1 | Motor_DC | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | M1 |
| 1 | SW_Push | Button_Switch_SMD:SW_DIP_SPSTx01_Slide_6.7x4.1mm_W6.73mm_P2.54mm_LowProfile_JPin | SW1 |
Questions
What parts does the 8085 mini elevator system use?
23 parts, built around the C8051F38C-GM and 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.
Where can I download the 8085 mini elevator system KiCad files?
From the GitGuru826004/mini_elevator repository on GitHub, at the commit this page was made from: the board is 8085_mini_elevator_system.kicad_pcb and its schematic 8085_mini_elevator_system.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the 8085 mini elevator system design in my own project?
Its repository states no licence, so its author keeps all rights: ask GitGuru826004 before reusing the design.
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