2 layers65 × 56 mm
2 layers50.8 × 22.9 mm
Feathertooth
dholth/feathertooth1feather form factor BGM113 module
- Size
- 50.8 × 22.9 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 23
- Nets
- 47
- Pads
- 128
- Tracks, vias
- 237, 30
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 19 Sep 2019
- Updated
- 19 Sep 2019
Overview
Feathertooth is an open-source printed circuit board by dholth, from the dholth/feathertooth repository on GitHub. It is a 2-layer board of 50.8 × 22.9 mm with 23 parts on 47 nets, routed with 237 tracks and 30 vias.
Its parts include 5 capacitors, 5 connectors, 3 resistors, 3 ICs and 2 diodes. It belongs with the microcontroller boards boards of this library.
README
README.mdfeathertooth
Feather form factor (but no USB code upload) SiLabs BGM113 carrier.
Mistakes in this version of the board:
- No diode to provide USB power if battery not charged
- Many of the BGM113 pins are connected internally, routing to the feather pins could be improved
Daniel Holth dholth@gmail.com, 2019
Parts
23| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | C | Capacitors_SMD:C_0603 | C1, C2, C4, C5 |
| 2 | 470 | Resistors_SMD:R_0603 | R2, R3 |
| 2 | LED | LEDs:LED_0603 | D1, D2 |
| 2 | MountingHole | Mounting_Holes:MountingHole_2.5mm | MH1, MH2 |
| 2 | Strap | Connect:PINTST | MH3, MH4 |
| 1 | 10k | Resistors_SMD:R_0603 | R1 |
| 1 | 4.7uF | Capacitors_SMD:C_0603 | C3 |
| 1 | BAT | Daniel:JST-S2B-PH | J3 |
| 1 | BGM113 | Daniel:BGM113 | U1 |
| 1 | BottomRow | Pin_Headers:Pin_Header_Straight_1x16_Pitch2.54mm | J2 |
| 1 | Conn_ARM_JTAG_SWD_10 | Pin_Headers:Pin_Header_Straight_2x05_Pitch1.27mm_SMD | J5 |
| 1 | E_SWITCH | Daniel:E_SWITCH | SW1 |
| 1 | MCP1703A | TO_SOT_Packages_SMD:SOT-89-3 | U2 |
| 1 | MCP73831-2-OT | TO_SOT_Packages_SMD:SOT-23-5 | U3 |
| 1 | TopRow | Pin_Headers:Pin_Header_Straight_1x12_Pitch2.54mm | J1 |
| 1 | USB_B_Micro | Daniel:SUNTECH_ST-USB-001G | J4 |
Questions
How big is the Feathertooth PCB?
It measures 50.8 × 22.9 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Feathertooth use?
23 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Feathertooth KiCad files?
From the dholth/feathertooth repository on GitHub, at the commit this page was made from: the board is feathertooth.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Feathertooth design in my own project?
Its repository states no licence, so its author keeps all rights: ask dholth before reusing the design.
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