Bluetooth minidisc
About the Bluetooth minidisc PCB
Bluetooth minidisc is an open source PCB design by 17o2, published on GitHub. It is a 4-layer board measuring 72.4 × 44.5 mm, with 71 components from 29 distinct parts.
Other key parts include the LM393, TP4057, Würth 171010502 and ME6211C33M5. By type, the board carries 30 resistors, 20 capacitors, 6 transistors, 5 ICs, 4 LEDs and 2 transformers.
It belongs with the iot & wireless designs in this gallery.
From the project
Adding built-in bluetooth connectivity to a 20-year-old Mindisc player
Main components on the Bluetooth minidisc
Bluetooth minidisc bill of materials (BOM)
71 components, 29 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | LM393 | SOT-23-8_Handsoldering | U1 |
| 1 | TP4057 | SOT-23-6_Handsoldering | U2 |
| 1 | Würth 171010502 | U_Wurth_WPME-VDMM_171010502 | U3 |
| 1 | ME6211C33M5 | SOT-23-5_HandSoldering | U4 |
| 1 | ~ | bt_audio_smd | U5 |
| 2 | BSD235N | SOT-363_SC-70-6_Handsoldering | Q1, Q3 |
| 3 | BSD235C | SOT-363_SC-70-6_Handsoldering | Q2, Q4, Q6 |
| 1 | AO3401A | SOT-23_Handsoldering | Q5 |
| 1 | ANT | U.FL_Molex_MCRF_73412-0110_Vertical | Y1 |
| 1 | USB_C_Receptacle_USB2.0_16P | USB-C-SMD_12P-P0.50-H-F_TYPE-C-31-M-14 | J2 |
| 1 | Antenna_Shield | Texas_SWRA117D_2.4GHz_Left | AE1 |
| 2 | ED8_4 | Transformer_ED8_4-Lead_10.5x8mm_P5mm | T1, T2 |
| 3 | GN | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | LED1, LED3, LED4 |
| 1 | RD | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | LED2 |
| 1 | GS1A | D_SMA_Handsoldering | D1 |
| 8 | 1u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C6, C11, C12, C14, C15, C16, C17 |
| 6 | 10u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C3, C4, C5, C8, C9 |
| 1 | 22p | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C7 |
| 5 | 100n | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C10, C13, C18, C19, C20 |
| 3 | 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R9 |
Show 9 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 330k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3 |
| 1 | 150k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4 |
| 1 | 220k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5 |
| 12 | 100k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R7, R8, R10, R11, R12, R13, R14, R20 +4 |
| 6 | 5k1 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R15, R16, R25, R26, R27, R28 |
| 2 | 330R | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R17, R18 |
| 1 | 1k6 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R19 |
| 1 | 115k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R22 |
| 2 | 100R | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R29, R30 |
Bluetooth minidisc design files
The KiCad project lives in the 17o2/bluetooth-minidisc repository on GitHub; these links point at the commit this page was built from.
Bluetooth minidisc: common questions
How big is the Bluetooth minidisc PCB?
The Bluetooth minidisc measures 72.4 × 44.5 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Bluetooth minidisc?
71 components, from 29 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Bluetooth minidisc design files?
From the 17o2/bluetooth-minidisc repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Bluetooth minidisc design in my own project?
The repository has no license, so all rights stay with 17o2. Use it as a reference, and ask the author before reusing the design.
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