2 layers101.8 × 52.5 mm
2 layers25.3 × 14.3 mm
Mini project 1
mbelanger0/Eclectronics_SP26The goal of this project is to design a circuit and PCB to blink an LED at 1Hz +/- 10% using a hysteretic oscillator implemented with an op-amp.
- Size
- 25.3 × 14.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 17
- Nets
- 14
- Pads
- 51
- Tracks, vias
- 60, 7
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 28 Jan 2026
- Updated
- 30 Mar 2026
Overview
Mini project 1 is an open-source printed circuit board by mbelanger0, from the mbelanger0/Eclectronics_SP26 repository on GitHub. It is a 2-layer board of 25.3 × 14.3 mm with 17 parts on 14 nets, routed with 60 tracks and 7 vias.
It is built around the MCP602-I/P. Its parts include 9 resistors, 4 capacitors, 2 ICs, 1 diode and 1 connector.
Main components
1README
mini_project_1/README.mdMini Project 1: Hysteretic Oscillator
The goal of this project is to design a circuit and PCB to blink an LED at 1Hz +/- 10% using a hysteretic oscillator implemented with an op-amp. The project includes simulation and worst-case analysis to verify the behavior of the circuit.
File Structure
- KiCad files are in this directory along with symbol/model imports
- Simulations are located in
simulation. Nominal simulation is titledmini_project_1.ascwhile worst-case sim is titledmini_project_1_worst_case.asc - The report is located in the
reportdirectory and is titledreport.pdf
Parts
17| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 1k | Resistor_SMD:R_0603_1608Metric | R1, R2, R7, R8, R9 |
| 2 | 0.1u | Capacitor_SMD:C_0603_1608Metric | C1, C4 |
| 2 | 1u | Capacitor_SMD:C_0603_1608Metric | C2, C3 |
| 2 | 2M | Resistor_SMD:R_0603_1608Metric | R3, R4 |
| 1 | 480370001 | 480370001:CONN_480370001_MOL | J1 |
| 1 | 49.9k | Resistor_SMD:R_0603_1608Metric | R6 |
| 1 | 499k | Resistor_SMD:R_0603_1608Metric | R5 |
| 1 | LED | LED_SMD:LED_0805_2012Metric | D1 |
| 1 | MCP1700x-330xxTT | Package_TO_SOT_SMD:SOT-23 | U2 |
| 1 | MCP602 | Package_SO:TSSOP-8_4.4x3mm_P0.65mm | U3 |
Questions
How big is the Mini project 1 PCB?
It measures 25.3 × 14.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Mini project 1 use?
17 parts, built around the MCP602-I/P. 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 Mini project 1 KiCad files?
From the mbelanger0/Eclectronics_SP26 repository on GitHub, at the commit this page was made from: the board is mini_project_1/mini_project_1.kicad_pcb and its schematic mini_project_1/mini_project_1.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Mini project 1 design in my own project?
Its repository states no licence, so its author keeps all rights: ask mbelanger0 before reusing the design.
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