

RCLight
Code
- Size
- 14.7 × 16.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 26
- Nets
- 22
- Pads
- 62
- Tracks, vias
- 91, 12
- Pours
- 54
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 9 Dec 2011
- Updated
- 24 Aug 2026
Overview
RCLight is an open-source printed circuit board by Ehryk, from the Ehryk/ehryk.github.com repository on GitHub. It is a 2-layer board of 14.7 × 16.2 mm with 26 parts on 22 nets, routed with 91 tracks and 12 vias.
It is built around the ATTINY814-SSN, AP2112K-3.3 and AO3400A, with the BAT54S among its other parts. Its parts include 7 resistors, 3 capacitors, 2 ICs, 2 transistors and 1 diode. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
4ATTINY814-SSN
SOIC-14-40℃~+105℃ 1.8V~5.5V 10bit 12 128Byte 20MHz 512Byte 8 Bit 8KB 8bit AVR Built-in FLASH SOIC-14 Microcontrollers (MCU/MPU/SOC) ROHSMicrochip TechnologyMicrocontrollers (MCU/MPU/SOC)AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorisedAO3400A
SOT-23-55℃~+150℃ 1 N-channel 1.45V 1.4W 30V 48mΩ@2.5V 5.7A 50pF 630pF 75pF 7nC@10V N-Channel SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETsBAT54S
SOT-231 Pair Series Connection 1V@100mA 200mA 2uA@25V 30V 600mA SOT-23 Schottky Diodes ROHSMDDSchottky Diodes
README
README.mdehryk.github.com
This is my github pages repo, viewable at ehryk.github.io. It also has some setup files that I sync between various computers, most notably git and bash aliases.
Github Pages (/, /js, /css, /img)
- xkcd 1288 Substitutions Bookmarklet
/linux && /git
These are the settings I sync between various computers. Update Config.bat for windows, update-config.sh for linux.
/rainmeter
Custom Rainmeter skins for GPU and CPU temps, etc.
/brian
Brian's Stuff. See more at Dr. Bird.org
Parts
26| Qty | Value | Footprint | References |
|---|---|---|---|
| 9 | WIRE | Ehryk:WIRE-24AWG | W1, W2, W3, W4, W5, W6, W7, W8, W9 |
| 4 | 10 kΩ | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R4, R5, R6 |
| 2 | 10 µF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2 |
| 2 | 100 Ω | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2, R3 |
| 2 | AO3400A | Package_TO_SOT_SMD:SOT-23 | Q1, Q2 |
| 1 | 100 nF | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C3 |
| 1 | 2.2 kΩ | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R7 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U1 |
| 1 | ATtiny814-SS | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U2 |
| 1 | BAT54S | Package_TO_SOT_SMD:SOT-23 | D1 |
| 1 | Reset | Ehryk:SW_SWT0010-015016SSA_REVA | S1 |
| 1 | UPDI | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J1 |
Questions
How big is the RCLight PCB?
It measures 14.7 × 16.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the RCLight use?
26 parts, built around the ATTINY814-SSN, AP2112K-3.3, AO3400A and BAT54S. 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 RCLight KiCad files?
From the Ehryk/ehryk.github.com repository on GitHub, at the commit this page was made from: the board is Circuits/RCLight/RCLight.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the RCLight design in my own project?
Its repository states no licence, so its author keeps all rights: ask Ehryk before reusing the design.
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