4 layers36 × 50.2 mm
Racer
StuckAtPrototype/Racer
These are structured into their own files. I could have used submodules, but decided against it.
83 parts3.8kApache-2.0
2 layers52 × 66 mm
Relay timer
Duckle29/Relay-timerA relay with a 7segment display, and an arduino. Inteded to be used as a timer
- Size
- 52 × 66 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 47
- Nets
- 54
- Pads
- 148
- Tracks, vias
- 375, 20
- Pours
- 10
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 15 Jul 2018
- Updated
- 15 Jul 2018
Overview
Relay timer is an open-source printed circuit board by Duckle29, from the Duckle29/Relay-timer repository on GitHub. It is a 2-layer board of 52 × 66 mm with 47 parts on 54 nets, routed with 375 tracks and 20 vias.
It is built around the BSS138 and BSS84L. Its parts include 21 resistors, 13 transistors, 2 connectors, 2 switches and 1 IC. It belongs with the home automation and IoT and lEDs and displays boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
2README
readme.mdRelay Tiemr
This is a simple PCB for controlling a relay and 7segment display from an arduino nano.
The firmware and design isn't tested, but should work. It reads the potentiometer to set the time on the timer, and then on a button push it starts the timer. If you want to reset the timer, then you can hold the button, and it'll enter the setup again once you let go.
At the start of the timer, the relay will be turned on/off depending on the setting in the firmware, and when the timer reaches zero, it'll sound a buzzer, and set the relay back to what it was before starting the timer.
Both the firmware and the PCB is fairly easy to modify, to use whatever MCU you want :)
Parts
47| Qty | Value | Footprint | References |
|---|---|---|---|
| 13 | 10k | Resistor_SMD:R_0603_1608Metric_Pad0.84x1.00mm_HandSolder | R1, R2, R3, R4, R5, R6, R7, R8, R9, R18, R19, R20, R21 |
| 9 | BSS138 | Package_TO_SOT_SMD:SOT-23_Handsoldering | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9 |
| 8 | 150R | Resistor_SMD:R_0603_1608Metric_Pad0.84x1.00mm_HandSolder | R10, R11, R12, R13, R14, R15, R16, R17 |
| 4 | BSS84L | Package_TO_SOT_SMD:SOT-23_Handsoldering | Q10, Q11, Q12, Q13 |
| 1 | 1N4007 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1 |
| 1 | Arduino_Nano_v3.x | Module:Arduino_Nano | A1 |
| 1 | Buzzer | Buzzer_Beeper:Buzzer_12x9.5RM7.6 | BZ1 |
| 1 | CA56-12SRWA | Display_7Segment:CA56-12SRWA | U1 |
| 1 | DPST FormA | Relay_THT:Relay_DPST_Schrack-RT2-FormA_RM5mm | K1 |
| 1 | Input | TerminalBlock:TerminalBlock_bornier-3_P5.08mm | J1 |
| 1 | Output | TerminalBlock:TerminalBlock_bornier-3_P5.08mm | J2 |
| 1 | R_POT | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | RV1 |
| 1 | tactile | Button_Switch_THT:SW_TH_Tactile_Omron_B3F-10xx | SW1 |
The 43 most common of 47 parts.
Questions
How big is the Relay timer PCB?
It measures 52 × 66 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Relay timer use?
47 parts, built around the BSS138 and BSS84L. 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 Relay timer KiCad files?
From the Duckle29/Relay-timer repository on GitHub, at the commit this page was made from: the board is relay_timer.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Relay timer design in my own project?
Its repository states no licence, so its author keeps all rights: ask Duckle29 before reusing the design.
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