2 layers49.4 × 40.4 mm
Transformerless power supply
Mahender0408/Embedded-Systems-Projects
Embedded Systems, IoT and PCB Design Projects
18 parts
2 layers62.7 × 28.9 mm
DC moter speed controller
Mahender0408/Embedded-Systems-ProjectsEmbedded Systems, IoT and PCB Design Projects
- Size
- 62.7 × 28.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 19
- Nets
- 11
- Pads
- 42
- Tracks, vias
- 89, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 23 Aug 2026
- Updated
- 23 Aug 2026
Overview
DC moter speed controller is an open-source printed circuit board by Mahender0408, from the Mahender0408/Embedded-Systems-Projects repository on GitHub. It is a 2-layer board of 62.7 × 28.9 mm with 19 parts on 11 nets, routed with 89 tracks and 0 vias.
It is built around the NE555P and TIP122. Its parts include 4 diodes, 3 capacitors, 3 resistors, 2 connectors and 1 IC.
Main components
2Parts
19| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 1N4007 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1, D2, D3 |
| 2 | 100nf | Capacitor_THT:C_Disc_D4.7mm_W2.5mm_P5.00mm | C1, C2 |
| 2 | 1k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1, R2 |
| 2 | Screw_Terminal_01x02 | TerminalBlock:TerminalBlock_MaiXu_MX126-5.0-02P_1x02_P5.00mm | J1, J2 |
| 1 | 1000uf | Capacitor_THT:CP_Radial_D10.0mm_P5.00mm | C3 |
| 1 | 100k | Potentiometer_THT:Potentiometer_Alps_RK163_Single_Horizontal | RV1 |
| 1 | 2.2k | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R3 |
| 1 | LED | LED_THT:LED_D5.0mm | D4 |
| 1 | NE555P | Package_DIP:DIP-8_W7.62mm | U1 |
| 1 | TIP122 | Package_TO_SOT_THT:TO-220-3_Vertical | Q1 |
The 15 most common of 19 parts.
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Questions
How big is the DC moter speed controller PCB?
It measures 62.7 × 28.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the DC moter speed controller use?
19 parts, built around the NE555P and TIP122. 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 DC moter speed controller KiCad files?
From the Mahender0408/Embedded-Systems-Projects repository on GitHub, at the commit this page was made from: the board is PCB_Design/project_4_Dc_moter_speed_Controller/DC_moter_speed_controller/DC_moter_speed_controller.kicad_pcb and its schematic PCB_Design/Project_1_Ac_to_Dc_conveter_/Ac_to_Dc_Conveter/Ac_to_Dc_Conveter.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the DC moter speed controller design in my own project?
Its repository states no licence, so its author keeps all rights: ask Mahender0408 before reusing the design.