4 layers28.6 × 43.1 mm
2 layers80.3 × 48.8 mm
Elektro bar
ElectroIGO/bak_rlBakalaura darbs 2025 VeA
- Size
- 80.3 × 48.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 44
- Nets
- 16
- Pads
- 81
- Tracks, vias
- 94, 0
- Pours
- 5
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 16 Apr 2025
- Updated
- 11 Jun 2025
Overview
Elektro bar is an open-source printed circuit board by ElectroIGO, from the ElectroIGO/bak_rl repository on GitHub. It is a 2-layer board of 80.3 × 48.8 mm with 44 parts on 16 nets, routed with 94 tracks and 0 vias.
It is built around the LM35. Its parts include 12 connectors, 11 resistors, 7 capacitors, 6 diodes and 2 ICs.
Main components
1Parts
44| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 12k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R7, R8, R9, R10 |
| 4 | 1N4001 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1, D2, D3, D4 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 2 | 0.1 uF | Capacitor_THT:C_Disc_D3.8mm_W2.6mm_P2.50mm | C3, C4 |
| 2 | 10uF | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C2, C5 |
| 2 | 1uF | Capacitor_THT:CP_Radial_D4.0mm_P2.00mm | C1, C6 |
| 2 | 220 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R4 |
| 2 | LM317_TO-220 | Package_TO_SOT_THT:TO-220-3_Vertical | U1, U2 |
| 1 | 1.1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R5 |
| 1 | 1.5k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3 |
| 1 | 100 uF | Capacitor_THT:CP_Radial_D10.0mm_P2.50mm | C7 |
| 1 | 12V | TerminalBlock:TerminalBlock_bornier-2_P5.08mm | J3 |
| 1 | 18k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R11 |
| 1 | 640 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R6 |
| 1 | 715 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2 |
| 1 | 9V | TerminalBlock:TerminalBlock_bornier-2_P5.08mm | J5 |
| 1 | ADC0 | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J10 |
| 1 | GND | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J4 |
| 1 | GREEN | LED_THT:LED_D5.0mm | D5 |
| 1 | LM35 | Connector_JST:JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J9 |
| 1 | MCU | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J7 |
| 1 | MCU-PWR | TerminalBlock:TerminalBlock_bornier-2_P5.08mm | J2 |
| 1 | MCU_PG | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J12 |
| 1 | NPN | Package_TO_SOT_THT:TO-92L_Inline | Q1 |
| 1 | PWR_PG | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J11 |
| 1 | Q_NMOS_GDS | Package_TO_SOT_THT:TO-220-3_Vertical | Q3 |
| 1 | R- | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J1 |
| 1 | RED | LED_THT:LED_D5.0mm | D6 |
| 1 | STBY+ | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J8 |
| 1 | STBY- | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J6 |
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Questions
How big is the Elektro bar PCB?
It measures 80.3 × 48.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Elektro bar use?
44 parts, built around the LM35. 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 Elektro bar KiCad files?
From the ElectroIGO/bak_rl repository on GitHub, at the commit this page was made from: the board is hardware/kicad/elektro_bar/elektro_bar.kicad_pcb and its schematic hardware/kicad/control_unit/control_unit.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Elektro bar design in my own project?
Its repository states no licence, so its author keeps all rights: ask ElectroIGO before reusing the design.