SecondaryBoard
About the SecondaryBoard PCB
SecondaryBoard is an open source PCB design by Kennystflr, published on GitHub. It is a 2-layer board measuring 85 × 31 mm, with 30 components from 13 distinct parts.
By type, the board carries 16 resistors, 5 capacitors, 4 diodes, 2 connectors and 2 switches.
It belongs with the audio and power & battery designs in this gallery.
From the project
Design of the electronic board for a speaker.
The purpose of this project is to design the electronic of a speaker. More specifically the goal is to take an entry signal from Jack 6.35 mm connector and to have sound coming out of a stereo loudspeaker. We could also have a parametric eq using 2 encoders 1 for the gain and 1 for the frequency we would be changing. We also want to have the system working on battery with Usb-C power delivery to charge-up the battery and power up the system even if there is no battery connected.
SecondaryBoard bill of materials (BOM)
30 components, 13 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | Conn_01x08 | JST_XH_B8B-XH-AM_1x08_P2.50mm_Vertical | J4, J5 |
| 1 | B10K | Potentiometer_Alpha_RD901F-40-00D_Single_Vertical | RV1 |
| 2 | ENCODER-RGB-SWITCH | ENCODER_LED_3 | S1, S2 |
| 1 | Green | LED_D3.0mm | D1 |
| 1 | Yellow | LED_D5.0mm | D2 |
| 1 | Orange | LED_D5.0mm | D3 |
| 1 | Red | LED_D5.0mm | D4 |
| 4 | 10nF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C2, C3, C4 |
| 1 | 100nF | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C5 |
| 8 | 10k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2, R3, R4, R5, R6, R7, R8 |
| 4 | 160 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R9, R12, R15, R16 |
| 3 | 180 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R10, R13, R14 |
| 1 | 120 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R11 |
SecondaryBoard design files
The KiCad project lives in the Kennystflr/Lightning-speaker repository on GitHub; these links point at the commit this page was built from.
SecondaryBoard: common questions
How big is the SecondaryBoard PCB?
The SecondaryBoard measures 85 × 31 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the SecondaryBoard?
30 components, from 13 distinct parts. The full bill of materials is listed on this page.
Where can I download the SecondaryBoard design files?
From the Kennystflr/Lightning-speaker repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the SecondaryBoard design in my own project?
The repository has no license, so all rights stay with Kennystflr. Use it as a reference, and ask the author before reusing the design.
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