
Boards using the ULN2003
151 boardsBoards in 128 GitHub repositories, designed in KiCad, that use the ULN2003 by BL (1.1V@250uA,100mA 25pF 2V 30V 500mA 50uA 50uA Seven channels SOP-16 Darlington Transistor Arrays ROHS). See how each wires it, with its parts, size, README and files; the ULN2003’s symbol, footprint and pinout are on its own page.
- 4 layers99.6 × 76.2 mm

- 2 layers31 × 64 mm

Power driver
jmfriedt/SDR-GB-SAR
Opensource, openhardware implementation of a Software Defined Radio (SDR) Ground Based Synthetic-Aperture RADAR (GB-SAR)
6 parts70 - 2 layers160 × 100 mm

MPCNC Nano Estlcam Shield
tnn85/MPCNC-Nano-Estlcam-Shield
Ein CNC Shield für die MPCNC in Verwendung mit Estlcam
96 parts70 - 2 layers42.5 × 43.2 mm

ElectronicFocuser
jlecomte/ascom-oag-focuser
Open Source ASCOM-Compatible OAG Focuser For Astrophotography
4 parts55MIT - 4 layers100 × 49.8 mm

- 2 layers134 × 91 mm

- 2 layers75 × 60 mm

DUTler V2
TheYoctoJester/dutler
A bench butler for your Device Under Test: turns a Raspberry Pi Pico into a USB-serial console bridge with power-relay and MOSFET strap/reset control for embedded-Linux bring-up and hardware-in-the-loop.
54 parts23Apache-2.0 - 4 layers76 × 82.5 mm

Nucleo64 CNC
terjeio/CNC_Breakout_Nucleo64
CNC breakout for STM324F411 and ST32F446 development boards
120 parts22 - 2 layers59 × 28 mm

- 2 layers147.8 × 106.3 mm

Mr washi
mayermakes/MyGenWashy
Generic washing Machine Controller - Result of the TuttleButtle Hackathon 2025
54 parts12GPL-3.0 - 2 layers60 × 80 mm

- 2 layers58.4 × 41.7 mm

Stepper board
felixzero/escrocs
Repository for the ESCROCS team for the french robotics cup 2020!
81 parts7GPL-3.0 - 4 layers170.2 × 135.1 mm

Temp
ka6s/rp_adapter
Red Pitaya Shield for HPSDR 1W Transceiver. Controls EB104.ru Hermes RX filter, 300W PA Transmit filter.
147 parts7 - 2 layers93 × 63 mm

- 4 layers92 × 95 mm

- 2 layers71.1 × 86.4 mm

Eezy mk3 driver
gonzafernan/educiaa-freertos
Control de brazo robótico básico mediante el uso de freeRTOS en placa de desarrollo EDU-CIAA-NXP.
43 parts5MIT - 2 layers85 × 100 mm

- 2 layers99.1 × 99.1 mm

Vent
pandemiaplan/OP-Vent
A Simple, Open-Source Ventilator using a Proportional Solenoid Valve
113 parts5 - 2 layers160 × 42 mm

ESP kicad2
Amrlxyz/esp-lfr-buggy
2nd Year Embedded Systems Project (ESP) - Line Following Robot Buggy
28 parts4 - 2 layers129.5 × 130.8 mm

- 2 layers

Carroza ESP32
peraltagonzalodavid21/Carroza-Arduino
Aca aunque ya me conozcan dejo mi nombre y promo por si este repo se sigue utilizando:
44 parts3 - 2 layers132.2 × 72.2 mm

Iconograph pcb
ademuri/iconograph-cnc
A hanging (vertical) plotter. Draws on a surface with implements such as pens, markers, etc. Uses a carriage suspended from two points.
45 parts2Apache-2.0 - 2 layers100 × 75 mm

Audioplayer
b00lduck/esp32-audioplayer
Arduino IDE sketch for a ESP8266 based MP3 audio player with RFID control
40 parts2GPL-3.0 - 2 layers60 × 100 mm

PCB01 KiCAD
Sajitha-Aldeniya/IOT-Based-fish-feeder
The IOT Based fish feeder is a small device which is design for aquarium industry. Specially for the small and lag scale fish farms, which need lot of man power to feed the fish in time.
33 parts2