2 layers123 × 87.5 mm
FastLOGIC
Neumi/fastLOGIC
An affordable Arduino-based board designed for straightforward (industrial) logic control, ideal for building small-scale automation and control solutions.
180 parts23MIT
2 layers49 × 81 mm
ESPRelay
Rendman/ESPRelayAnother ESP-12 based relay module
- Size
- 49 × 81 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 23
- Nets
- 43
- Pads
- 86
- Tracks, vias
- 111, 0
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 8 Aug 2021
- Updated
- 8 Aug 2021
Overview
ESPRelay is an open-source printed circuit board by Rendman, from the Rendman/ESPRelay repository on GitHub. It is a 2-layer board of 49 × 81 mm with 23 parts on 43 nets, routed with 111 tracks and 0 vias.
It is built around the EL817. Its parts include 4 resistors, 4 diodes, 4 connectors, 3 ICs and 2 transistors. It belongs with the ESP8266 boards of this library.
Main components
1README
README.mdESP8266 2-Channel Relay
This project was originally designed to act a as wifi enabled IoT garage door opener. It has two relay channels and two sensor channels.
This hardware is largely a rip off of standard "Arduino" modules that you can find on eBay and other sources. It's really nothing special. It does proivde a higher degree of integration as you can mount a NodeMCU directly to the PCB.
I've tested this with the TASMOTA software and it seems to work pretty well.
Here is the TASMOTA Config for the module. Any kind of Commands or Backlog things are left to the user.
GPIO -> Function
GPIO4 -> Relay2
GPIO5 -> Relay1
GPIO12 -> Switch2
GPIO14 -> Switch1
This project also includes FreeCAD files for a 3D printable box for the device. I used the following as the magnetic sensor, but any other one would work just fine:
Seco-Larm Overhead Door Sensor
Here are a few pictures of the device and the sensor
Parts
23| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 2 | 1K | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R1, R2 |
| 2 | 1N4003 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D3, D4 |
| 2 | 2N3904 | Package_TO_SOT_THT:TO-92_Inline | Q1, Q2 |
| 2 | 510 | Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal | R3, R4 |
| 2 | EL817 | Package_DIP:DIP-4_W7.62mm | U2, U3 |
| 2 | G5Q-1 | Relay_THT:Relay_SPDT_Omron-G5Q-1 | K1, K2 |
| 2 | LED_Small_ALT | LED_THT:LED_D5.0mm | D1, D2 |
| 1 | NodeMCU_1.0_(ESP-12E) | ESP8266:ESP12F-Devkit-V3 | U1 |
| 1 | RELAY1 | SamacSys_Parts:5442251 | J1 |
| 1 | RELAY2 | SamacSys_Parts:5442251 | J2 |
| 1 | SENSOR_1 | TerminalBlock_TE-Connectivity:TerminalBlock_TE_282834-3_1x03_P2.54mm_Horizontal | J3 |
| 1 | SENSOR_2 | TerminalBlock_TE-Connectivity:TerminalBlock_TE_282834-3_1x03_P2.54mm_Horizontal | J4 |
Questions
How big is the ESPRelay PCB?
It measures 49 × 81 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ESPRelay use?
23 parts, built around the EL817. 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 ESPRelay KiCad files?
From the Rendman/ESPRelay repository on GitHub, at the commit this page was made from: the board is ESPRelay.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the ESPRelay design in my own project?
Its repository states no licence, so its author keeps all rights: ask Rendman before reusing the design.
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