2 layers121 × 75.5 mm
Jlctest
cjheath/jlcbasic
JLC Basic parts library for Kicad fetched and converted from EasyEDA
46 parts5
4 layers200 × 48.3 mm
Switchboard
photon-cat/envcontroltools better environmental controller for poultry, switchboard and relay hardware
- Size
- 200 × 48.3 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 65
- Nets
- 78
- Pads
- 219
- Tracks, vias
- 431, 89
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 11 Nov 2025
- Updated
- 2 Dec 2025
Overview
Switchboard is an open-source printed circuit board by photon-cat, from the photon-cat/envcontrol repository on GitHub. It is a 4-layer board of 200 × 48.3 mm with 65 parts on 78 nets, routed with 431 tracks and 89 vias.
It is built around the SP485EEN-L, AO3400A and SS24. Its parts include 23 resistors, 9 diodes, 9 switches, 8 transistors and 8 fuses.
Main components
3
SP485EEN-L
SOIC-8-40℃~+85℃ 1 1 10Mbps 4.75V~5.25V Transceiver SOIC-8 RS-485 / RS-422 ICs ROHSMaxLinearRS-485 / RS-422 ICs
AO3400A
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 SemiconductorMOSFETs
SS24
SMA(DO-214AC)-55℃~+150℃ 200uA@40V 2A 40V 50A 550mV@2A Independent SMA(DO-214AC) Schottky Diodes ROHShongjiachengSchottky Diodes
Parts
65| Qty | Value | Footprint | References |
|---|---|---|---|
| 14 | 10kΩ | PCM_JLCPCB:R_0603 | R1, R2, R3, R4, R5, R6, R23, R26, R29, R32, R34, R36, R38, R48 |
| 8 | 0 | PCM_JLCPCB:R_0603 | F1, F2, F3, F4, F5, F6, F7, F8 |
| 8 | 150Ω | PCM_JLCPCB:R_0603 | R21, R25, R28, R31, R33, R35, R37, R46 |
| 8 | AO3400A | PCM_JLCPCB:Q_SOT-23 | Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 |
| 8 | Red | PCM_JLCPCB:D_0805 | D1, D2, D3, D4, D5, D6, D7, D8 |
| 8 | ~ | custom:SW-TH_1MS1T1B1M1QES-5 | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8 |
| 1 | 100nF | PCM_JLCPCB:C_0603 | C1 |
| 1 | 120Ω | PCM_JLCPCB:R_0603 | R7 |
| 1 | 2604-1104 | custom:CONN4_2604-1104_WAG | J2 |
| 1 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Horizontal | J3 |
| 1 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J1 |
| 1 | SP485EEN | PCM_JLCPCB:SOIC-8_L5.0-W4.0-P1.27-LS6.0-BL | U2 |
| 1 | SS24 | Diode_SMD:D_SMA | D20 |
| 1 | YAAJ_BluePill_Part_Like | custom:YAAJ_BluePill_1 | U1 |
| 1 | ~ | custom:CHINA_MP1584EN | U3 |
| 1 | ~ | custom:IDC-TH_10P-P2.54-H-R2-C5-S2.54 | P1 |
| 1 | ~ | custom:SW-TH_12P-P2.54_SMQP-06B-TP | SW10 |
Questions
How big is the Switchboard PCB?
It measures 200 × 48.3 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Switchboard use?
65 parts, built around the SP485EEN-L, AO3400A and SS24. 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 Switchboard KiCad files?
From the photon-cat/envcontrol repository on GitHub, at the commit this page was made from: the board is hw/switchboard.kicad_pcb and its schematic hw/switchboard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Switchboard design in my own project?
Its repository states no licence, so its author keeps all rights: ask photon-cat before reusing the design.
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