2 layers24.4 × 24.4 mm
OSO SWAT B1
joeycastillo/Sensor-Watch
A board replacement for the classic Casio F-91W wristwatch
39 parts2.1k
2 layers151.5 × 95 mm
Aciduino pcb
midilab/aciduino334Affordable and DIY, Roland TB-303 and TR-808 step sequencer clone and midi controller. Packed with additional features, specifically designed for musicians and DJs to use on live performances or streamline their studio creative process.
- Size
- 151.5 × 95 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 39
- Nets
- 47
- Pads
- 162
- Tracks, vias
- 227, 1
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 10 Mar 2018
- Updated
- 14 Oct 2026
Overview
Aciduino pcb is an open-source printed circuit board by midilab, from the midilab/aciduino repository on GitHub, published under the MIT licence. It is a 2-layer board of 151.5 × 95 mm with 39 parts on 47 nets, routed with 227 tracks and 1 via.
Its parts include 11 resistors, 7 diodes, 6 switches, 3 connectors and 1 IC. It belongs with the audio and music boards and the AVR (ATmega, ATtiny) boards of this library.
README
README.mdAciduino
The DIY Arduino-based Roland TB303 and TR808 Step Sequencer clone and MIDI Controller. Designed using readily available, inexpensive parts. It can be easily assembled on a protoboard or ordered as PCB.
There are two flavors of aciduino, the first version(v1) is a TB303 sequencer only, the second version(v2) is a TB303 and TR808 sequencer with oled display and step/pattern/mute grid system.
Find out more about at official home page
Aciduino V1
2 Tracks TB303 sequencer and MIDI Controller.
V1 on PCB
Aciduino V2
Up to 16 Tracks TB303/TR808 sequencer with step, pattern and mute automation grid system, MIDI Controller, OLED display and extensible modular design to plug more potentiometers, buttons, MIDI or CV/Gate interfaces.
V2 on Protoboard
V2 on PCB(prototype)
Features
303/808 Step Sequencer clone
Programming bass and drum steps using same analogy of original machines • Save your pattern work on microcontroller EPPROM memory for later live gigs • Use step length and shift to make some unusual sequences • Automation grid system for step edit, pattern navigation and mute tracks • Realtime and Step record modes for MIDI keyboard input(v2 only)
Professional grade Clock
Tight and solid clock system using hardware timers to achieve realtime professional grade tick system • Send or receive clock to keep all your external equipment synced
Generative Engine
Generate new and fresh acid music patterns by pressing a single button and twist some parameters • Harmonizer to force musical harmonic modes for bass lines • Euclidian generator for drum parts
Midi Controller
Controls up to 16 parameters per track of your external synthesizers(bass/drums) • Midi learn(v2 only) • 16 potentiometers modular support to extend aciduino as midi controller(v2 only)
Pattern memory
Store your patterns conveniently on the microcontroller's EEPROM, allowing you to access them effortlessly during live performances.
Easy and fast Assembly
1 or 2 hours assembly time on protoboard.
Parts
39| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 220R | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R3, R4, R5, R6, R7, R8, R9, R10 |
| 6 | LED | LED_THT:LED_D3.0mm | D1, D2, D3, D4, D5, D6 |
| 6 | SW_Cherry_MX_1.00u_PCB | Button_Switch_Keyboard:SW_Cherry_MX_tact_Dual | SW1, SW2, SW3, SW4, SW5, SW6 |
| 4 | 10k | Potentiometer_THT:Potentiometer_Alpha_RD901F-40-00D_Single_Vertical | RV1, RV2, RV3, RV4 |
| 4 | Hole_2.2mm | MountingHole:MountingHole_2.2mm_M2_Pad | mount1, mount2, mount3, mount4 |
| 1 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D7 |
| 1 | 4.7k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R11 |
| 1 | 6N138 | Package_DIP:DIP-8_W7.62mm | U1 |
| 1 | Arduino_Nano_v3.x | Module:Arduino_Nano | A1 |
| 1 | LOGO | PCB:logo | G*** |
| 1 | MIDI_IN | Connector:SDS-50J | J3 |
| 1 | MIDI_OUT | Connector:SDS-50J | J1 |
| 1 | battery | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2 |
The 38 most common of 39 parts.
Similar boards
- 2 layers100 × 33.5 mm
Breakout 48pin 174917-Connector
rusefi/rusefi
rusefi - GPL internal combustion engine control unit
39 parts1.2k - 2 layers33 × 26 mm
VL53L1x pwm
hackclub/OnBoard
💡 Join 1,000 teenagers and make your first PCB with a $100 grant!
39 parts915 - 2 layers43.4 × 18.8 mm
Usb sniffer lite
ataradov/usb-sniffer-lite
A simple USB sniffer based on Raspberry Pi RP2040
39 parts706BSD-3-Clause - 2 layers40 × 20 mm
ESP8266
windowsair/wireless-esp8266-dap
CMSIS-DAP compatible wireless debugger for ESP8266/ESP32/ESP32C3/ESP32S3. Optional 40MHz SPI acceleration, etc. 适配多种ESP芯片的无线调试器
39 parts690MIT - 2 layers100 × 70.3 mm
- 2 layers81.3 × 53.3 mm
RGB LED 1.4
lachlanA/eagle-to-kicad
Eagle SCH/LIB to KiCad SCH/LIB ULP conversion script
39 parts429GPL-2.0 - 2 layers65.7 × 44.8 mm
Questions
How big is the Aciduino pcb PCB?
It measures 151.5 × 95 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Aciduino pcb use?
39 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 Aciduino pcb KiCad files?
From the midilab/aciduino repository on GitHub, at the commit this page was made from: the board is v1/hardware/ijnekenamay-PCB/Kicad_file/aciduino_pcb.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Aciduino pcb design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).