

Examples
Collection of arduino, avr and pic projects
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 41
- Nets
- 21
- Pads
- 100
- Tracks, vias
- 0, 0
- Routed
- Not yet
- KiCad
- KiCad 7 (file 20221018)
- Created
- 25 Nov 2020
- Updated
- 9 Apr 2026
Overview
Examples is an open-source printed circuit board by mwwhited, from the mwwhited/EmbeddedBakery repository on GitHub. It is a 2-layer board with 41 parts on 21 nets.
Its parts include 18 resistors, 12 diodes, 8 switches, 2 transistors and 1 connector.
README
circuits/HelperBoards/Wave Form Generator Amplifier/readme.mdWave Form Amplifier
By: Matthew Whited Out-of-Band Development 2023
Summary
This is a schematic for a LM324 based amplifier that takes provides matching amplification/attenuation and DC offset to an arbitray wave form generator.
Parts
41| Qty | Value | Footprint | References |
|---|---|---|---|
| 14 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14 |
| 8 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3, D4, D10, D11, D12, D13 |
| 8 | SW_Push | Button_Switch_THT:SW_Tactile_Straight_KSA0Axx1LFTR | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 |
| 4 | 220 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R15, R16, R17, R18 |
| 4 | LED | LED_THT:LED_D3.0mm | D17, D18, D19, D20 |
| 2 | 2N2222 | Package_TO_SOT_THT:TO-92 | Q1, Q2 |
| 1 | Conn_01x02_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
Questions
What parts does the Examples use?
41 parts. 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 Examples KiCad files?
From the mwwhited/EmbeddedBakery repository on GitHub, at the commit this page was made from: the board is circuits/DiodeLogicBoards/Examples/Examples.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Examples design in my own project?
Its repository states no licence, so its author keeps all rights: ask mwwhited before reusing the design.
More from mwwhited/EmbeddedBakery
12- 2 layers

- 2 layers225 × 157.5 mm

- 4 layers120.7 × 80 mm

- 2 layers132 × 64.5 mm

- 2 layers35 × 63.5 mm

OperationalAmplifierExamples
mwwhited/EmbeddedBakery
Collection of arduino, avr and pic projects
48 parts1 - 2 layers

- 2 layers127.5 × 100 mm

- 2 layers215.9 × 177.8 mm

- 2 layers41.5 × 46.5 mm

- 2 layers

- 2 layers76.2 × 35.2 mm

- 2 layers97.5 × 47.5 mm

Wave Form Generator Amplifier
mwwhited/EmbeddedBakery
Collection of arduino, avr and pic projects
22 parts1
Similar boards
- 2 layers70 × 35 mm

- 2 layers270 × 11 mm

Daylight Disco
VoronDesign/Voron-Hardware
Cool Hardware designed by the Voron Design group
41 parts1.1kGPL-3.0 - 2 layers27.5 × 48.3 mm

ICE40DevBoard
hackclub/OnBoard
💡 Join 1,000 teenagers and make your first PCB with a $100 grant!
41 parts915 - 2 layers45 × 25 mm

Easy PD Sink
openwch/ch32v003
CH32V003 is an ultra-cheap RISC-V MCU with 2KB SRAM, 16KB flash, and up to 18 GPIOs that sells for under $0.10
41 parts599 - 2 layers97 × 78.5 mm

Dumbpad
imchipwood/dumbpad
Simple 4x4 numpad with rotary encoder. Powered by QMK via ATmega32u4 Pro Micro
41 parts517GPL-2.0 - 2 layers96.1 × 78.6 mm

EYEBROW WARNING INDICATOR LEFT
jrsteensen/OpenHornet
OpenHornet 1:1 F/A-18C Simulator Repository
41 parts431 - 2 layers37 × 15 mm

- 2 layers20.3 × 69.7 mm

PG attiny404
fabiansteiner/OpenValve
3D-printable pinch valve for irrigation and sensor-driven liquid control.
41 parts276CERN-OHL-S-2.0