BM20 breadboard adapter v1
About the BM20 breadboard adapter v1 PCB
BM20 breadboard adapter v1 is an open source PCB design by tomaskovacik, published on GitHub under the Custom license license. It is a 2-layer board measuring 29.5 × 47.2 mm, with 23 components from 14 distinct parts.
Other key parts include the BM20. By type, the board carries 8 capacitors, 6 connectors, 4 resistors, 2 switches, 2 diodes and 1 IC.
It belongs with the dev boards & breakouts designs in this gallery, and the repository also holds 1 earlier revision of it.
From the project
HW (pcb, schematics etc) for my projects
This is directory with whole kicad project files for breadboard adapter for BM20 and BM62 bluetooth modules from Microchip
assembled or bare boards can be found on my tindie store:
Main components on the BM20 breadboard adapter v1
BM20 breadboard adapter v1 bill of materials (BOM)
23 components, 14 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | BM20 | BM20_no_silk_screen_under_antena | U1 |
| 2 | CONN_18 | Pin_Header_Straight_1x18 | CON1, CON2 |
| 1 | batt | Pin_Header_Straight_1x02 | CON3 |
| 2 | PJ-320B | 3.5mm_stereo_jack_PJ320B | J1, J2 |
| 1 | USB_B_Micro | USB_Micro-B | J3 |
| 2 | SWITCH_SPST | SW_SPST_FSMSM | SW1, SW2 |
| 1 | LEDGREEN | LED-1206 | D1 |
| 1 | LEDRED | LED-1206 | D2 |
| 2 | 2u2/10V | C_1206_HandSoldering | C1, C2 |
| 2 | 0,1u/16V | C_1206_HandSoldering | C3, C4 |
| 2 | 100n | C_0805_HandSoldering | C5, C8 |
| 2 | 10u/16V | C_1206_HandSoldering | C6, C7 |
| 3 | 1k | R_0805_HandSoldering | R1, R2, R3 |
| 1 | 2k | R_0805_HandSoldering | R4 |
BM20 breadboard adapter v1 design files
The KiCad project lives in the tomaskovacik/hw repository on GitHub; these links point at the commit this page was built from.
BM20 breadboard adapter v1: common questions
How big is the BM20 breadboard adapter v1 PCB?
The BM20 breadboard adapter v1 measures 29.5 × 47.2 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the BM20 breadboard adapter v1?
23 components, from 14 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 BM20 breadboard adapter v1 design files?
From the tomaskovacik/hw repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the BM20 breadboard adapter v1 design in my own project?
It is published under Custom license, which limits how it may be reused; read the license before building on it.
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Earlier revisions in the repo: BM20_breadboard_adapter
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