4 layers180.3 × 114.9 mm
Boards using the NE555
170 boardsBoards in 144 GitHub repositories, designed in KiCad, that use the NE555 by GR (-20℃~+70℃ 1 1.5mA 200mA 4.5V~15V Adjustable duty cycle oscillation、Reset function、Duty cycle stabilization SOP-8 555 Timers / Counters ROHS). See how each wires it, with its parts, size, README and files; the NE555’s symbol, footprint and pinout are on its own page.
- 2 layers297.2 × 180.3 mm
- 2 layers203.2 × 149.9 mm
- 2 layers
LM80C R6
leomil72/LM80C
A Z80-based homebrew computer withTMS9918, AY-3-8910, Z80 CTC, Z80 PIO, and Z80 SIO
153 parts123GPL-3.0 - 2 layers249.9 × 89.4 mm
CSCvon8
DoctorWkt/CSCvon8
A crazy small 8-bit CPU built with only seventeen 7400-series chips.
55 parts112GPL-3.0 - 2 layers160.1 × 101 mm
PLC-14500
nicolacimmino/PLC-14500
Retro trainer board based on the MC14500 1-bit ICU. The project is OSHW certified and a ready to assemble kit is available on Tindie.
173 parts70GPL-3.0 - 2 layers63 × 46 mm
Pi485
bvarner/pi485
An open-source TTL UART <-> RS485 converter, intended for a Raspberry Pi or Arduino
31 parts41MIT - 2 layers9.9 × 110.1 mm
ADSR
kraakenstuff/ADSR
2HP ADSR module based on "Fastest Envelope in the West" by René Schmitz (https://www.schmitzbits.de/adsr.html)
44 parts37 - 2 layers159.5 × 99.8 mm
- 2 layers
- 4 layers172.7 × 135.9 mm
- 2 layers37.1 × 24.1 mm
- 2 layers79.8 × 129.5 mm
- 2 layers49.3 × 81.9 mm
C64-Joystick Switcher
tebl/C64-Joystick-Switcher
Wanted a joystick switcher for my Commodore 64, so I built one by adapting C64 Mega Switcher for use with Atari-style joysticks.
30 parts21 - 2 layers88.9 × 88.9 mm
- 2 layers49.3 × 81.5 mm
C64-Mega Switcher
tebl/C64-Mega-Switcher
Adapter for using Sega Mega Drive/Genesis controllers on a C64, with builtin port switcher so no more cable switching!
34 parts20 - 2 layers
BreadBin
c0pperdragon/BreadBin
A CPU made of 7400 logic on breadboards - inside a bread bin ;-)
45 parts18 - 2 layers68 × 89 mm
ParanoiaBox
profdc9/ParanoiaBox
A standalone elliptic curve/AES file encryption and decryption device
60 parts17 - 2 layers90.8 × 22.9 mm
- 2 layers
RFIDZapper
envido32/rfid-zapper
RFID Zapper sirve para quemar, dejando fuera de funcionamiento de forma irreversible los chips tipo RFID
37 parts12 - 2 layers83.8 × 91.4 mm
Tangnano20k vectrex
ryomuk/tangnano20k-vectrex
Tang Nano 20K top level module for Dar's Vectrex
109 parts11 - 2 layers82.6 × 40.6 mm
Amiga Mouse Switch
tebl/Amiga-Mouse-Switch
An attempt at building an automatic Amiga Mouse/Joystick switch (when used with Amiga port 1) - pushing the button changes the device connected. No more two-cable Merengue for me on the Amiga 500, forever more!
25 parts11 - 2 layers156.5 × 67.5 mm
NixieScanDisplay
profdc9/NixieClock
A Nixie clock that uses IN-14 tubes and very generic components that can be easily sourced.
106 parts10 - 2 layers100 × 100 mm
