4 layers115 × 55 mm
Roamr motors
uw-roamr/roamr
turn your phone into a robot running SLAM with two motors, two control boards, and a bluetooth chip
110 parts6
2 layers59 × 41 mm
AS28H USBC
jgraichen/AS28H-USBCUSB-C charger board for AS28H DECT phones
- Size
- 59 × 41 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 32
- Nets
- 13
- Pads
- 77
- Tracks, vias
- 55, 10
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 20 Dec 2025
- Updated
- 20 Dec 2025
Overview
AS28H USBC is an open-source printed circuit board by jgraichen, from the jgraichen/AS28H-USBC repository on GitHub, published under the CC-BY-SA-4.0 licence. It is a 2-layer board of 59 × 41 mm with 32 parts on 13 nets, routed with 55 tracks and 10 vias.
It is built around the 1N5819HW-7-F-01 and LESD5D5.0CT1G. Its parts include 6 resistors, 6 diodes, 5 connectors, 2 capacitors and 1 IC. It belongs with the power boards of this library.
Main components
2README
README.mdAS23H-USBC
USB-C powered charger board for AS24H DECT phones.
The board has three USB-C connectors and transforms the voltage to the required 4V for the phones.
Do not chain via USB, only use one input at most.
Board
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License
Parts
32| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 5.1k | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4, R5, R6 |
| 6 | TestPoint | TestPoint:TestPoint_THTPad_D1.0mm_Drill0.5mm | TP3, TP4, TP5, TP6, TP7, TP8 |
| 3 | 1N5819HW-7-F | Diode_SMD:D_SOD-123 | D2, D4, D6 |
| 3 | LESD5D5.0CT1G | Diode_SMD:D_SOD-523 | D1, D3, D5 |
| 3 | USB_C_Receptacle_PowerOnly_6P | Connector_USB:USB_C_Receptacle_GCT_USB4125-xx-x-0190_6P_TopMnt_Horizontal | J3, J4, J5 |
| 2 | Conn_01x01_Socket | Connector_Pin:Pin_D1.0mm_L10.0mm | J1, J2 |
| 1 | 10µF | Capacitor_SMD:C_0603_1608Metric | C3 |
| 1 | 1µF | Capacitor_SMD:C_0603_1608Metric | C2 |
| 1 | LP2985-4.0 | Package_TO_SOT_SMD:SOT-23-5 | U1 |
The 26 most common of 32 parts.
Questions
How big is the AS28H USBC PCB?
It measures 59 × 41 mm and has 2 copper layers, 1.6 mm thick.
What parts does the AS28H USBC use?
32 parts, built around the 1N5819HW-7-F-01 and LESD5D5.0CT1G. 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 AS28H USBC KiCad files?
From the jgraichen/AS28H-USBC repository on GitHub, at the commit this page was made from: the board is AS28H-USBC.kicad_pcb and its schematic AS28H-USBC.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the AS28H USBC design in my own project?
Its repository publishes it under the CC-BY-SA-4.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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