2 layers132.1 × 45.7 mm
IPoS
peterheinrich/InternetOverSpaghetti
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42 parts342
2 layers
Pulse sensor first
bgmbzk/pulse_sensor_pcbA non-invasive heart rate (pulse) monitor circuit designed with KiCad, utilizing an optical sensor and an operational amplifier.
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 10
- Nets
- 11
- Pads
- 26
- Tracks, vias
- 50, 0
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 15 Mar 2026
- Updated
- 15 Mar 2026
Overview
Pulse sensor first is an open-source printed circuit board by bgmbzk, from the bgmbzk/pulse_sensor_pcb repository on GitHub. It is a 2-layer board with 10 parts on 11 nets, routed with 50 tracks and 0 vias.
It is built around the LM358. Its parts include 2 resistors, 2 diodes, 1 capacitor and 1 IC. It belongs with the sensors and measurement and audio and music boards of this library.
Main components
1README
README.mdFirst PCB Design: Pulse Sensor
This project is my first electronic circuit design created using KiCad. I designed a finger pulse sensor based on the LM358 operational amplifier.
Project Content
- Schematic:
pulse_sensor.kicad_sch - PCB Design:
pulse_sensor.kicad_pcb - Manufacturing Files:
Gerber.zip
What I Learned
- Creating schematic symbols and assigning footprints.
- Routing tracks on PCB and creating copper pours.
- Preparing Gerber and Drill files for manufacturing.
Parts
10| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | 10ohm1, 470ohm1 |
| 1 | 1M | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R3 |
| 1 | 220 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R1 |
| 1 | 4.7uF | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C1 |
| 1 | Battery_Cell | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | BT1 |
| 1 | D_Photo_Filled | LED_THT:LED_D5.0mm | D3 |
| 1 | IR_LED | LED_THT:LED_D5.0mm | D1 |
| 1 | LED | LED_THT:LED_D5.0mm | gosterge_led1 |
| 1 | LM358 | Package_DIP:DIP-8_W7.62mm | U1 |
Questions
What parts does the Pulse sensor first use?
10 parts, built around the LM358. 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 Pulse sensor first KiCad files?
From the bgmbzk/pulse_sensor_pcb repository on GitHub, at the commit this page was made from: the board is pulse_sensor_first.kicad_pcb and its schematic pulse_sensor_first.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pulse sensor first design in my own project?
Its repository states no licence, so its author keeps all rights: ask bgmbzk before reusing the design.
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