2 layers8.1 × 25 mm
2 layers
Relay
Memetrans/relerele wifi
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 43
- Nets
- 69
- Pads
- 155
- Tracks, vias
- 233, 0
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 26 Mar 2025
- Updated
- 7 Jun 2025
Overview
Relay is an open-source printed circuit board by Memetrans, from the Memetrans/rele repository on GitHub. It is a 2-layer board with 43 parts on 69 nets, routed with 233 tracks and 0 vias.
It is built around the GP2S700HCP, L7805 and MMBT2222A. Its parts include 8 resistors, 8 diodes, 8 connectors, 6 ICs and 5 switches. It belongs with the radio and wireless and home automation and IoT boards of this library.
Main components
3
GP2S700HCP
SMD-4P1.2V 20mA 20us@100uA,1kΩ 20us@100uA,1kΩ 5.5mm 950nm Phototransistor SMD-4P Reflective Optical Interrupters ROHSSHARPReflective Optical Interrupters
L7805
TO-220ST0℃~+125℃@(Tj) 1 1.2A 20V 2V@(1A) 42uV 500uA 5V 73dB@(120Hz) Fixed Positive Short Circuit Protection TO-220ST Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSOSENVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
MMBT2222A
SOT-23-55℃~+150℃ 1 NPN 100 100nA 1V 300MHz 300mW 40V 600mA 6V NPN Standalone SOT-23 Bipolar (BJT) ROHShongjiachengBipolar (BJT)
Parts
43| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | R | Resistor_SMD:R_0805_2012Metric | R1, R2, R3, R4, R5, R6, R7, R8 |
| 4 | Conn_01x03_Pin | TerminalBlock:TerminalBlock_bornier-3_P5.08mm | J1, J2, J3, J4 |
| 4 | D | Diode_SMD:D_0805_2012Metric | D1, D4, D6, D8 |
| 4 | GP2S700HCP | OptoDevice:Sharp_GP2S700HCP | U1, U2, U3, U4 |
| 4 | LED | LED_SMD:LED_0805_2012Metric | D2, D3, D5, D7 |
| 4 | MMBT2222A | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3, Q4 |
| 4 | SANYOU_SRD_Form_C | Relay_THT:Relay_SPDT_SANYOU_SRD_Series_Form_C | K1, K2, K3, K4 |
| 2 | C | EESTN5:CAP_0.1 | C3, C4 |
| 2 | C_US | EESTN5:CAP_ELEC_8x11.5mm | C1, C2 |
| 1 | Conn_01x02_Pin | Connector_PinHeader_2.00mm:PinHeader_1x02_P2.00mm_Vertical | J7 |
| 1 | Conn_01x04_Pin | Connector_PinHeader_2.00mm:PinHeader_1x04_P2.00mm_Vertical | J8 |
| 1 | Conn_01x06_Pin | Connector_PinHeader_2.00mm:PinHeader_1x06_P2.00mm_Vertical | J6 |
| 1 | L7805 | Converter_DCDC:Converter_DCDC_RECOM_R-78E-0.5_THT | U5 |
| 1 | SW_Nidec_CAS-120A1 | Connector_PinHeader_2.00mm:PinHeader_1x03_P2.00mm_Vertical | SW1 |
| 1 | Screw_Terminal_01x02 | TerminalBlock:TerminalBlock_bornier-2_P5.08mm | J5 |
| 1 | ~ | esp:ESP32S_38_PINES | U6 |
Questions
What parts does the Relay use?
43 parts, built around the GP2S700HCP, L7805 and MMBT2222A. 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 KiCad files?
From the Memetrans/rele repository on GitHub, at the commit this page was made from: the board is harware/relay/relay.kicad_pcb and its schematic harware/relay/relay.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Relay design in my own project?
Its repository states no licence, so its author keeps all rights: ask Memetrans before reusing the design.
Similar boards
- 2 layers65 × 56 mm
- 2 layers46 × 69.5 mm
Pannel
atuleu/aristeus
Yet another Open Source Hardware Apiary project for monitoring bees.
108 partsCERN-OHL-S-2.0 - 2 layers90.9 × 50.9 mm
- 2 layers150 × 100 mm
- 2 layers100.1 × 99.9 mm
- 2 layers90 × 119 mm
Skid Steer 4x4 ESP32 DRV8833 PCB
retrobuiltRyan/4x4_Rover_ESP32
1:10 scale robot Rover with ESP32 and PS4 controller. Custom PCB for multi channel motor control
111 parts2BSD-3-Clause - 2 layers80 × 47.9 mm
ESP32 XIAO IoT PCB
retrobuiltRyan/esp32c3_xiao_iot_pcb
PCB for MQTT projects. Sensor, i2c, Screen, and buck converter breakout
60 parts1BSD-3-Clause