Speaker board
About the Speaker board
Speaker board is an open source PCB design by bazsimarkus, published on GitHub. It is a 2-layer board measuring 60 × 40 mm, with 13 components from 12 distinct parts.
Other key parts include the LM386. By type, the board carries 6 capacitors, 3 resistors, 1 IC, 1 connector and 1 speaker.
It belongs with the audio and power & battery designs in this gallery.
From the project
An ATmega32-based ProTracker MOD music player with AM29F040B parallel flash memory and stereo PWM audio output. Program a MOD file onto the flash chip, plug it in, and music starts playing.
An ATmega32-based ProTracker MOD music player with AM29F040B parallel flash memory and stereo PWM audio output. Program a MOD file onto the flash chip, plug it in, and music starts playing.
- Overview - Features - Getting Started - What You Need - Programming the Flash Chip - Building and Flashing the Firmware - Schematic - Bill of Materials for the Main Board - How It Works - Flash Memory Interface - Audio Output - MOD Playback Engine - Channel Activity LEDs - Power Supply and Protection - Speaker Extension Board - Bill of Materials for the Speaker Extension Board - Documentation -…
Main components on the Speaker board
Speaker board bill of materials (BOM)
13 components, 12 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LM386 | DIP-8_W7.62mm | U1 |
| 1 | Conn_02x04_Odd_Even | PinHeader_2x04_P2.54mm_Vertical | J1 |
| 1 | CVS-2308 | SPKR_CVS-2308 | LS1 |
| 1 | Trimpot 3362-P | Trimpot 3386F | RV1 |
| 1 | 100uF | CP_Radial_D5.0mm_P2.00mm | C1 |
| 1 | 0.1uF | C_100nF_L7.0mm_W2.5mm_P5.00mm | C2 |
| 1 | 1uF | CP_Radial_D4.0mm_P2.00mm | C3 |
| 1 | 10uF | CP_Radial_D4.0mm_P2.00mm | C4 |
| 1 | 47nF | C_Disc_D3.0mm_W1.6mm_P2.50mm | C5 |
| 1 | 220uF | CP_Radial_D5.0mm_P2.00mm | C6 |
| 2 | 300k | R_10k_Axial_DIN0207 | R1, R2 |
| 1 | 10R | R_10k_Axial_DIN0207 | R3 |
Speaker board design files
The KiCad project lives in the bazsimarkus/avr-mod-player repository on GitHub; these links point at the commit this page was built from.
Speaker board: common questions
How big is the Speaker board?
The Speaker board measures 60 × 40 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Speaker board?
13 components, from 12 distinct parts. The full bill of materials is listed on this page.
Where can I download the Speaker board design files?
From the bazsimarkus/avr-mod-player repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Speaker board design in my own project?
The repository has no license, so all rights stay with bazsimarkus. Use it as a reference, and ask the author before reusing the design.
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