4 layers100 × 75 mm
OpenAirScope
emertcakir/OpenAirScope
Open-source air quality and environmental monitoring node with STM32H743 + ESP32-C3, LoRaWAN, RS485, USB-C, Li-ion charging, and multi-sensor support.
282 parts26MIT
2 layers155.1 × 86.1 mm
OverlordDimmer
Nimfrodian/OverlordDimmerRepository for a dimmer circuit and code
- Size
- 155.1 × 86.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 187
- Nets
- 196
- Pads
- 550
- Tracks, vias
- 1,407, 311
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 13 Dec 2023
- Updated
- 25 Sep 2025
Overview
OverlordDimmer is an open-source printed circuit board by Nimfrodian, from the Nimfrodian/OverlordDimmer repository on GitHub. It is a 2-layer board of 155.1 × 86.1 mm with 187 parts on 196 nets, routed with 1,407 tracks and 311 vias.
It is built around the SN65HVD230D, IRF740 and 2N7002E, with the 2SC4061KT146N, BC817 and SBR1A40S1 among its other parts. Its parts include 66 resistors, 45 transistors, 19 diodes, 13 capacitors and 12 ICs.
Main components
6
SN65HVD230D
SOIC-8-40℃~+85℃ 1 17mA 1Mbps 370uA 3V~3.6V CAN Transceiver Low-power mode、Wake-up function、ESD protection、Thermal shutdown protection、Bus fault protection、Hot-swap protection SOIC-8 CAN Transceivers ROHSTexas InstrumentsCAN Transceivers
IRF740
TO-220-55℃~+175℃ 1 N-channel 1.162nF 100W 10A 17pF 32nC@10V 400V 4V 500mΩ@10V N-Channel TO-220 MOSFETs ROHSMinosMOSFETs
2N7002E
SOT-23-55℃~+150℃ 1 N-channel 2.5V 225mW 3.5Ω@5V 300mA 60V N-Channel SOT-23 MOSFETs ROHSSlkorMOSFETs
2SC4061KT146N
SC-59-3-55℃~+150℃ 1 NPN 100MHz 100mA 200mW 2V 300V 500nA 56 5V NPN SC-59-3 Bipolar (BJT) ROHSROHM SemiconductorBipolar (BJT)BC817
SOT-231 NPN 100nA 150MHz 300mW 40 45V 500mA 5V 700mV NPN SOT-23 Bipolar (BJT) ROHSShikuesBipolar (BJT)
SBR1A40S1
SOD-123-65℃~+150℃ 1A 200uA@40V 20A 40V 520mV@1A SOD-123 Super Barrier Rectifiers (SBR) ROHSDiodes IncorporatedSuper Barrier Rectifiers (SBR)
Parts
187| Qty | Value | Footprint | References |
|---|---|---|---|
| 20 | 470k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R4, R10, R14, R16, R20, R24, R26, R29, R34, R37, R40, R42, R48, R51, R53 +4 |
| 20 | IRF740 | Package_TO_SOT_THT:TO-220-3_Vertical | Q1, Q10, Q11, Q12, Q14, Q16, Q19, Q20, Q24, Q25, Q27, Q28, Q32, Q35, Q36, Q39 +4 |
| 18 | Connector_Conn_01x01_Male | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | Dbg1, Dbg2, Dbg3, Dbg3V3, Dbg4, Dbg5, Dbg5V0, Dbg6, Dbg7, Dbg8, Dbg9, Dbg10, DbgCRX1, DbgCTX1, DbgEdge1, DbgGND1 +2 |
| 13 | 220 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5, R17, R18, R28, R31, R39, R41, R43, R52, R55, R64, R65, R66 |
| 12 | VISHAY S07J-GS08 | Diode_SMD:D_SMF | D1, D2, D3, D4, D5, D6, D7, D8, D9, D14, D15, D17 |
| 11 | 1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R2, R8, R11, R21, R22, R33, R36, R38, R49, R50, R56 |
| 10 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R6, R9, R19, R23, R32, R35, R46, R47, R57 |
| 10 | 2N3904 | Package_TO_SOT_THT:TO-92_Inline | Q2, Q7, Q8, Q15, Q18, Q23, Q26, Q30, Q34, Q37 |
| 10 | 2N3906 | Package_TO_SOT_THT:TO-92_Inline | Q3, Q6, Q9, Q13, Q17, Q29, Q31, Q33, Q38, Q41 |
| 10 | 4.7u | Capacitor_SMD:CP_Elec_3x5.4 | C1, C2, C3, C5, C6, C7, C8, C10, C11, C13 |
| 10 | 4N25 | Package_DIP:DIP-6_W7.62mm | U1, U2, U3, U5, U6, U7, U8, U9, U10, U11 |
| 5 | 1N4148 | Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal | D10, D11, D12, D13, D16 |
| 2 | 10K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R25, R30 |
| 2 | 220k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R44, R45 |
| 2 | 2N7002E | Package_TO_SOT_SMD:SOT-23 | Q21, Q22 |
| 2 | 2SC4061KT146N | Package_TO_SOT_SMD:SC-59_Handsoldering | Q43, Q45 |
| 2 | 5K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R15, R27 |
| 2 | Connector_Screw_Terminal_01x09 | TerminalBlockCustom:TerminalBlock_9_5.08mm | J1, J4 |
| 2 | MountingHole | MountingHole:MountingHole_3.5mm | H1, H2 |
| 1 | 100k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R61 |
| 1 | 100nF | Capacitor_THT:C_Disc_D6.0mm_W2.5mm_P5.00mm | C4 |
| 1 | 10uF | Capacitor_THT:CP_Radial_D4.0mm_P1.50mm | C12 |
| 1 | 120 | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R13 |
| 1 | 1nF | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm | C9 |
| 1 | 2.2k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R63 |
| 1 | 20K | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R12 |
| 1 | 22k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R59 |
| 1 | 4N35 | Package_DIP:DIP-6_W7.62mm | U12 |
| 1 | 75k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R60 |
| 1 | BC817 | Package_TO_SOT_SMD:SOT-23 | Q44 |
| 1 | BZX84C12LT1G | Package_TO_SOT_SMD:SOT-23 | D18 |
| 1 | Conn_01x02_Male | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | 11 |
| 1 | Conn_01x12_Female | Connector_Molex:Molex_CLIK-Mate_502386-1270_1x12-1MP_P1.25mm_Horizontal | J6 |
| 1 | Conn_01x12_Pin | Connector_Molex:Molex_Picoflex_90325-0012_2x06_P1.27mm_Vertical | J6 |
| 1 | ESP-DevKitC-V4 | Overlord:ESP32-DevKitC-V4 | ESP1 |
| 1 | RJ45x2 | Connector_RJ:RJ45_Amphenol_RJHSE538X-02 | J3 |
| 1 | SBR1A40S1 | Diode_SMD:D_SOD-123 | D18 |
| 1 | SN65HVD230 | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U4 |
| 1 | USB_B | Connector_USB:USB_B_OST_USB-B1HSxx_Horizontal | J5 |
| 1 | USB_cable | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J2 |
The 184 most common of 187 parts.
Similar boards
- 2 layers147 × 92 mm
Van
blinken/vandal
An ESP32-based lighting control system for campervans (or anything else)
227 parts6GPL-3.0 - 4 layers144.2 × 82.8 mm
SmartFuseBox
k3ldar/PowerControlHub
PowerControlHub is a flexible automation controller for 12V systems. It combines relay switching, sensor monitoring, and smart‑home connectivity (MQTT, Home Assistant, REST, BLE) into one device.
93 parts5GPL-3.0 - 2 layers43 × 43 mm
- 4 layers80 × 80 mm
Flightcomputer2
UTS-Rocketry/ODIN-FlightController2026
Primary avionics flight controller for the 2026 AURC rocket.
114 parts1 - 2 layers90 × 58.5 mm
SensactHsNano
klaus-liebler/sensact
Es gibt vier Namespaces für Nachrichten "REQUEST" und "RESPONSE", "EVENT" und "ACKNOWLEDGE". Dies wird mit den beiden LSB des Versions-Namespace-Bytes erklärt (Somit bleiben 64 Versionierungsmöglichkeiten) Alle vier…
130 parts4Apache-2.0 - 2 layers67.8 × 86.9 mm
- 6 layers31.7 × 110 mm
Eurorack pmod pcb
apfaudio/eurorack-pmod
A eurorack-friendly audio frontend compatible with many FPGA boards, based on the AK4619VN audio CODEC.
155 parts241
Questions
How big is the OverlordDimmer PCB?
It measures 155.1 × 86.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the OverlordDimmer use?
187 parts, built around the SN65HVD230D, IRF740, 2N7002E and 2SC4061KT146N. 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 OverlordDimmer KiCad files?
From the Nimfrodian/OverlordDimmer repository on GitHub, at the commit this page was made from: the board is other/KiCad/OverlordDimmer/OverlordDimmer.kicad_pcb and its schematic other/KiCad/OverlordDimmer/OverlordDimmer.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the OverlordDimmer design in my own project?
Its repository states no licence, so its author keeps all rights: ask Nimfrodian before reusing the design.