2 layers80 × 35 mm
2 layers184 × 114.8 mm
Poly555
oskitone/poly55593The POLY555 is a polyphonic, analog, square wave synth based on the 555 timer chip.
- Size
- 184 × 114.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 262
- Nets
- 168
- Pads
- 733
- Tracks, vias
- 2,027, 24
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 9 Jul 2020
- Updated
- 23 Nov 2024
Overview
Poly555 is an open-source printed circuit board by oskitone, from the oskitone/poly555 repository on GitHub. It is a 2-layer board of 184 × 114.8 mm with 262 parts on 168 nets, routed with 2,027 tracks and 24 vias.
It is built around the LM386, L7805 and FSM4JSMATR, with the EG1218 among its other parts. Its parts include 85 resistors, 67 capacitors, 23 ICs, 22 diodes and 22 switches. It belongs with the audio and music boards of this library.
Main components
4
LM386
SOP-80.2% 0℃~+70℃ 4V~12V 4mA 50dB 700mWx1@8Ω Analog voltage gain SOP-8 Audio Amplifiers ROHSGcoreAudio Power OpAmps
L7805
TO-220ST0℃~+125℃@(Tj) 1 1.2A 20V 2V@(1A) 42uV 500uA 5V 73dB@(120Hz) Fixed Positive Short Circuit Protection TO-220ST Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSOSENVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
FSM4JSMATR
SMD-4P,6x6mm-40℃~+85℃ 1.6N 100,000 cycles 24V 50mA 5mm 6mm 6mm Gull Wing Round Button SPST-NO Surface Mount,Vertical Without Bracket SMD-4P,6x6mm Tactile Switches ROHSTE ConnectivityTactile Switches
EG1218
插件-20℃~+70℃ 11.6mm 200mA 30V 4mm 7.4mm Black PC Pin Rectangular Columnar SPDT Through Hole Plugin Slide Switches ROHSE-SwitchSlide Switches
README
readme.mdPOLY555 Synth
The POLY555 is a polyphonic, analog, square wave synth based on the 555 timer chip.
Demo: https://vimeo.com/487720782
Purchase a kit: https://www.oskitone.com/product/poly555-synth-diy-kit
Assembly Guide: https://oskitone.github.io/poly555/
Blog post: https://blog.tommy.sh/posts/poly555-synth/
Code
This repo contains:
- The kicad project for the PCB
- The openscad code for generating the models for 3D-printing
- The assembly_guide code for, you guessed it, generating the Assembly Guide
License
Designed by Oskitone. Please support future synth projects by purchasing from Oskitone.
Creative Commons Attribution/Share-Alike, all text above must be included in any redistribution. See license.txt for additional details.
Parts
262| Qty | Value | Footprint | References |
|---|---|---|---|
| 22 | .1uF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C1, C4, C10, C13, C16, C19, C22, C25, C28, C31, C34, C37, C40, C43, C46, C102 +6 |
| 22 | 1k | Potentiometer_THT:Potentiometer_Piher_PT-6-V_Vertical | RV1, RV2, RV3, RV10, RV11, RV12, RV13, RV14, RV15, RV16, RV17, RV18, RV19, RV20, RV21, RV103 +6 |
| 22 | LED | LED_THT:LED_D5.0mm | D1, D2, D3, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D101 +6 |
| 21 | 220 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R1, R5, R13, R17, R21, R25, R29, R33, R37, R41, R45, R49, R53, R57, R61, R65 +5 |
| 20 | 100 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R3, R11, R15, R19, R23, R27, R31, R35, R39, R43, R47, R51, R55, R59, R63, R67 +4 |
| 20 | 100k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R2, R6, R10, R14, R18, R22, R26, R30, R34, R38, R42, R46, R50, R54, R58, R62 +4 |
| 20 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R4, R12, R16, R20, R24, R28, R32, R36, R40, R44, R48, R52, R56, R60, R64, R68 +4 |
| 20 | 10nF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C3, C12, C15, C18, C21, C24, C27, C30, C33, C36, C39, C42, C45, C48, C51, C54 +4 |
| 20 | 4.7uF | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C2, C5, C11, C14, C17, C20, C23, C26, C29, C32, C35, C38, C41, C44, C47, C50 +4 |
| 20 | 555 | Package_DIP:DIP-8_W7.62mm | U1, U2, U3, U4, U5, U10, U11, U12, U13, U14, U15, U16, U17, U18, U19, U20 +4 |
| 20 | FSM4JSMATR | Button_Switch_THT:SW_TH_Tactile_Omron_B3F-10xx | S1, S2, S3, S4, S5, S10, S11, S12, S13, S14, S15, S16, S17, S18, S19, S20 +4 |
| 2 | 1M | Potentiometer_THT:Potentiometer_Bourns_PTV09A-1_Single_Vertical | RV101, RV102 |
| 2 | 9v | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | BT1, BT101 |
| 2 | EG1218 | Button_Switch_THT:SW_Slide_1P2T_CK_OS102011MS2Q | S21, S101 |
| 2 | VAL** | Panelization:mouse-bite-2.54mm-slot | mouse-bite-2.54mm-slot, mouse-bite-2.54mm-slot |
| 1 | .01uF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C101 |
| 1 | .22uF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C61 |
| 1 | 10 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P2.54mm_Vertical | R83 |
| 1 | 100 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R82 |
| 1 | 10uF | Capacitor_THT:CP_Radial_D4.0mm_P2.00mm | C103 |
| 1 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R102 |
| 1 | 220uF | Capacitor_THT:CP_Radial_D8.0mm_P3.50mm | C64 |
| 1 | 330 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R101 |
| 1 | 47nF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C63 |
| 1 | L7805 | Package_TO_SOT_THT:TO-220F-3_Horizontal_TabDown | U21 |
| 1 | LM386 | Package_DIP:DIP-8_W7.62mm | U22 |
| 1 | LM556 | Package_DIP:DIP-14_W7.62mm_LongPads | U101 |
| 1 | Speaker | custom-footprints:Speaker_30mm_36MS30008-PN | LS101 |
| 1 | Speaker | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | LS1 |
The 249 most common of 262 parts.
Questions
How big is the Poly555 PCB?
It measures 184 × 114.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Poly555 use?
262 parts, built around the LM386, L7805, FSM4JSMATR and EG1218. 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 Poly555 KiCad files?
From the oskitone/poly555 repository on GitHub, at the commit this page was made from: the board is kicad/poly_555.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Poly555 design in my own project?
Its repository states no licence, so its author keeps all rights: ask oskitone before reusing the design.
Similar boards
- 4 layers65.8 × 77.2 mm
- 2 layers139.7 × 88.9 mm
- 4 layers170 × 80 mm
- 2 layers114.3 × 188 mm
- 2 layers127 × 76.2 mm
- 2 layers101.6 × 73.7 mm
- 2 layers88.9 × 215.9 mm
Mss crossover array
IowaScaledEngineering/mss-crossover
Integrated Crossover Module for Free-mo Modular Signal System
291 parts