2 layers147.3 × 114.3 mm
Distributor
mentlerd/playground
A mishmash of my personal programming (or adjacent) projects/snippets/experiments
46 parts
2 layers
USB Relay Board
edmoac/usb-relay8KiCad project of USB relay board
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 27
- Nets
- 53
- Pads
- 139
- Tracks, vias
- 1, 0
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 23 Oct 2024
- Updated
- 20 Nov 2024
Overview
USB Relay Board is an open-source printed circuit board by edmoac, from the edmoac/usb-relay8 repository on GitHub. It is a 2-layer board with 27 parts on 53 nets, routed with 1 track and 0 vias.
It is built around the ULN2804A. Its parts include 12 capacitors, 3 ICs, 3 connectors and 1 crystal. It belongs with the home automation and IoT boards and the STM32 boards of this library.
Main components
1README
README.mdUSB relay 8
KiCad project of USB relay board, using STM32 microcontroller.
Parts
27| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | G5LE-14_DC5 | digikey-footprints:Relay_THT_G5LE-14 | RLY1, RLY2, RLY3, RLY4, RLY5, RLY6, RLY7, RLY8 |
| 5 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3, C4, C5, C6, C7 |
| 2 | 0.1u | Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C1, C2 |
| 2 | 18pF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C11, C12 |
| 2 | Conn_01x12 | TERM BLK 12P SIDE ENTRY 5MM PCB:PHOENIX_1935268 | J2, J3 |
| 1 | 10nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C9 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C10 |
| 1 | 4.7nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C8 |
| 1 | Crystal | Crystal:Crystal_HC18-U_Vertical | Y1 |
| 1 | STM32F070F6Px | Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm | U1 |
| 1 | TLV70036_SOT23-5 | Package_TO_SOT_SMD:SOT-23-5 | U2 |
| 1 | ULN2804A | Package_DIP:DIP-18_W7.62mm_LongPads | U3 |
| 1 | USB_B | Connector_USB:USB_B_Lumberg_2411_02_Horizontal | J1 |
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Questions
What parts does the USB Relay Board use?
27 parts, built around the ULN2804A. 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 USB Relay Board KiCad files?
From the edmoac/usb-relay8 repository on GitHub, at the commit this page was made from: the board is USB-Relay-Board.kicad_pcb and its schematic USB-Relay-Board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the USB Relay Board design in my own project?
Its repository states no licence, so its author keeps all rights: ask edmoac before reusing the design.