BTM308-host
About the BTM308-host PCB
BTM308-host is an open source PCB design by KingJacker, published on GitHub. It is a 4-layer board measuring 23 × 40 mm, with 52 components from 26 distinct parts.
Other key parts include the Bluetooth Module, OPA1678 and PJ-320A. By type, the board carries 21 resistors, 13 capacitors, 7 connectors, 5 switches, 3 ICs and 3 diodes.
It belongs with the iot & wireless designs in this gallery.
From the project
This is a carrier board for the BTM308 Bluetooth audio module.
Main components on the BTM308-host
BTM308-host bill of materials (BOM)
52 components, 26 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | Bluetooth Module | BTM308 | U1 |
| 1 | OPA1678 | SOIC-8_5.3x5.3mm_P1.27mm | U2 |
| 1 | PJ-320A | PJ-320A | U3 |
| 1 | Bottom | PinHeader_2x05_P2.54mm_Vertical | J1 |
| 1 | USB_C_Receptacle_USB2.0_16P | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J2 |
| 2 | Battery + | PinHeader_1x01_P2.54mm_Vertical | J3, J6 |
| 2 | Battery - | PinHeader_1x01_P2.54mm_Vertical | J4, J7 |
| 1 | Top | PinHeader_2x05_P2.54mm_Vertical | J5 |
| 1 | PLAY | TST-A002_0.6MM_BOSS | SW1 |
| 1 | VOL- | TST-A002_0.6MM_BOSS | SW2 |
| 1 | VOL+ | TST-A002_0.6MM_BOSS | SW3 |
| 1 | ON/OFF | SLW8645745ARAND | SW4 |
| 1 | Battery Status | TST-A002_0.6MM_BOSS | SW6 |
| 1 | BLUE | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1 |
| 1 | RED | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D2 |
| 1 | SMAJ6.0A | D_SMA | D3 |
| 3 | 220uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2, C11 |
| 3 | 22uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3, C5, C10 |
| 1 | 100nF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4 |
| 4 | 1uF | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C6, C7, C8, C9 |
Show 6 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 10uf | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C12, C13 |
| 5 | 1k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R3, R4, R5 |
| 10 | 10k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R6, R7, R8, R9, R10, R11, R12, R13 +2 |
| 2 | 0 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R14, R21 |
| 2 | 5.1k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R17, R18 |
| 2 | 47 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R19, R20 |
BTM308-host design files
The KiCad project lives in the KingJacker/BTM308-bluetooth-module-host repository on GitHub; these links point at the commit this page was built from.
BTM308-host: common questions
How big is the BTM308-host PCB?
The BTM308-host measures 23 × 40 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the BTM308-host?
52 components, from 26 distinct parts. The full bill of materials is listed on this page.
Where can I download the BTM308-host design files?
From the KingJacker/BTM308-bluetooth-module-host repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the BTM308-host design in my own project?
The repository has no license, so all rights stay with KingJacker. Use it as a reference, and ask the author before reusing the design.
More boards in BTM308-bluetooth-module-host
Similar boards
EinkPDA screen
TalismanDesign
95 × 54 mm27 parts2LApache-2.02.0k
RPi RM0 WiFi/Bluetooth Module
schlae
11.1 × 14 mm76 parts6LNo license1.0k
Breakout board
Luos-io
26.7 × 27.9 mm29 parts2LMIT547
Stm32f0 disco Luos shield
55.9 × 99.1 mm26 parts2LMIT547
L0 USB
20.3 × 15.3 mm19 parts2LMIT547
L0 USBA
20.3 × 15.3 mm19 parts2LMIT547