4 layers68.9 × 50.7 mm
DigitalClock ATMega328
bostang/PCBs
My repository for documenting all PCB Projects I have done
74 parts
2 layers30 × 20 mm
Btt relay display
galagithub/btt_relay_displayA small PCB to display the status of a BTT Relay and reset it's state
- Size
- 30 × 20 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 20
- Nets
- 14
- Pads
- 43
- Tracks, vias
- 72, 18
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 7 Dec 2024
- Updated
- 10 Dec 2024
Overview
Btt relay display is an open-source printed circuit board by galagithub, from the galagithub/btt_relay_display repository on GitHub. It is a 2-layer board of 30 × 20 mm with 20 parts on 14 nets, routed with 72 tracks and 18 vias.
It is built around the BC847 and SS14. Its parts include 6 resistors, 3 diodes, 2 transistors, 2 connectors and 1 capacitor. It belongs with the home automation and IoT and lEDs and displays boards of this library.
Main components
2README
README.mdBTT Relay Display
A small PCB that can display the status of the relay, it connects to it through a 5 pin cable. A reset switch is also provided. You can also program/flash the relay through it, there is a separate header for programmer connection.
Related projects
- BTT Relay v1.2 https://github.com/bigtreetech/BIGTREETECH-Relay-V1.2
- Custom firmware with platform.io https://github.com/galagithub/btt_relay_os
Parts
20| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 1k | Resistor_SMD:R_0805_2012Metric | R1, R2, R3, R4 |
| 2 | 470 | Resistor_SMD:R_0805_2012Metric | R5, R6 |
| 2 | BC847 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2 |
| 1 | 1u | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | OFF (RED) | LED_THT:LED_D3.0mm | D1 |
| 1 | ON (GRN) | LED_THT:LED_D3.0mm | D2 |
| 1 | PROGRAM | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J2 |
| 1 | RELAY | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J1 |
| 1 | RESET | Button_Switch_THT:SW_PUSH_6mm_H5mm | SW1 |
| 1 | SS14 | Diode_SMD:D_SMA | D3 |
The 15 most common of 20 parts.
Questions
How big is the Btt relay display PCB?
It measures 30 × 20 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Btt relay display use?
20 parts, built around the BC847 and SS14. 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 Btt relay display KiCad files?
From the galagithub/btt_relay_display repository on GitHub, at the commit this page was made from: the board is kicad/btt_relay_display.kicad_pcb and its schematic kicad/btt_relay_display.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Btt relay display design in my own project?
Its repository states no licence, so its author keeps all rights: ask galagithub before reusing the design.
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