4 layers52.5 × 50 mm
Wifi relay
ajvizganapathy-pixel/ESP8266-WiFiRelay-IndustrialIoT
ESP8266-based WiFi relay for industrial IoT — KiCad PCB, Gerbers, BOM, custom footprint libraries
20 parts1
2 layers78.9 × 71.3 mm
Rele wifi De Caro (1)
MatyDC/Rele-wifi- Size
- 78.9 × 71.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 42
- Nets
- 49
- Pads
- 127
- Tracks, vias
- 228, 2
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 7 May 2025
- Updated
- 18 Jun 2025
Overview
Rele wifi De Caro (1) is an open-source printed circuit board by MatyDC, from the MatyDC/Rele-wifi repository on GitHub. It is a 2-layer board of 78.9 × 71.3 mm with 42 parts on 49 nets, routed with 228 tracks and 2 vias.
It is built around the ESP32-CAM, BC847 and PC817B-S, with the PR13-5V-450-1C among its other parts. Its parts include 8 resistors, 8 diodes, 8 transistors, 5 connectors and 5 switches. It belongs with the radio and wireless boards and the ESP32 and RISC-V boards of this library.
Main components
4
ESP32-CAM
插件插件 WiFi Modules ROHSAi-ThinkerWiFi Modules
BC847
SOT-231 NPN 100MHz 100mA 100nA 110 200mW 45V 500mV 6V NPN SOT-23 Bipolar (BJT) ROHSShikuesBipolar (BJT)
PC817B-S
SOP-4Transistor, Photovoltaic Output OptoisolatorsUMWPR13-5V-450-1C
插件,19x15.5mm-40℃~+85℃ 100mΩ 10A 10A@30VDC、10A@250VAC 10ms 30V@DC、250V@AC 450mW 55Ω 5V 5ms One set changeover: 1C (SPDT - changeover) Silver Alloy 插件,19x15.5mm Power Relays ROHSCUIPower Relays
Parts
42| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 220 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R3, R4 |
| 4 | 680 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R5, R6, R7, R8 |
| 4 | BC847 | Package_TO_SOT_SMD:SOT-23 | Q9, Q10, Q11, Q12 |
| 4 | D | Diode_SMD:D_SMA | D3, D4, D6, D8 |
| 4 | LED | LED_SMD:LED_0805_2012Metric | D1, D2, D5, D7 |
| 4 | PC817-B | optoacoplador:SOT254P1025X400-4N | Q1, Q2, Q5, Q7 |
| 4 | PR13-5V-450-1C | relay:RELAY_PR13-5V-450-1C | K1, K2, K3, K4 |
| 4 | R | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | 10K1, 10K2, 10K3, 10K4 |
| 4 | Screw_Terminal_01x03 | TerminalBlock:TerminalBlock_bornier-3_P5.08mm | J1, J2, J3, J4 |
| 2 | 0.1uF | Capacitor_SMD:C_0805_2012Metric | C5, C6 |
| 1 | ESP32-CAM | esp cam:ESP32-CAM | U2 |
| 1 | MC7805CD2TG | 7805 d2pak:MC7805CD2TG | IC1 |
| 1 | SW_DPST_x2 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | SW1 |
| 1 | Screw_Terminal_01x02 | TerminalBlock:TerminalBlock_bornier-2_P5.08mm | J5 |
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Questions
How big is the Rele wifi De Caro (1) PCB?
It measures 78.9 × 71.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Rele wifi De Caro (1) use?
42 parts, built around the ESP32-CAM, BC847, PC817B-S and PR13-5V-450-1C. 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 Rele wifi De Caro (1) KiCad files?
From the MatyDC/Rele-wifi repository on GitHub, at the commit this page was made from: the board is Hardware/Rele-wifi De Caro (1).kicad_pcb and its schematic Hardware/Rele-wifi De Caro (1).kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Rele wifi De Caro (1) design in my own project?
Its repository states no licence, so its author keeps all rights: ask MatyDC before reusing the design.