Remote Relay
About the Remote Relay PCB
Remote Relay is an open source ESP8266 PCB design by GadgetReboot, published on GitHub. It is a 2-layer board measuring 71.6 × 44.2 mm, with 26 components from 17 distinct parts.
Its main chip is the WeMos_D1_mini, from the ESP8266 family. Other key parts include the B0505S and PC817. By type, the board carries 8 resistors, 6 capacitors, 4 diodes, 3 ICs, 3 connectors and 1 transistor.
It belongs with the iot & wireless designs in this gallery.
From the project
Remotely control a relay over WiFi or UART pins (use a TTL to RS485 or Bluetooth module etc)
Main components on the Remote Relay
Remote Relay bill of materials (BOM)
26 components, 17 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | B0505S | Converter_DCDC_muRata_CRE1xxxxxx3C_THT | U1 |
| 1 | WeMos_D1_mini | WEMOS_D1_mini_light | U2 |
| 1 | PC817 | DIP-4_W7.62mm | U3 |
| 1 | 2N3904 | TO-92_Inline | Q1 |
| 1 | Screw_Terminal_01x03 | TerminalBlock_bornier-3_P5.08mm | J1 |
| 1 | Conn_01x05 | PinHeader_1x05_P2.54mm_Vertical | J2 |
| 1 | 3.5mm Jack PJ320E | Jack_3.5mm_PJ320E_Horizontal | J3 |
| 1 | SRD-05VDC-SL-C | Relay_SPDT_SANYOU_SRD_Series_Form_C | K1 |
| 2 | LED_Small_ALT | LED_D5.0mm | D1, D4 |
| 1 | 1N4001 | D_DO-41_SOD81_P10.16mm_Horizontal | D2 |
| 1 | 1N4148 | D_DO-35_SOD27_P7.62mm_Horizontal | D3 |
| 2 | 100nF | C_Disc_D3.0mm_W1.6mm_P2.50mm | C1, C2 |
| 3 | 10uF | CP_Radial_D5.0mm_P2.50mm | C3, C5, C6 |
| 1 | 10nF | C_Disc_D3.0mm_W1.6mm_P2.50mm | C4 |
| 6 | 1K | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2, R4, R5, R7, R8 |
| 1 | 470r | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3 |
| 1 | 100K | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R6 |
Remote Relay design files
The KiCad project lives in the GadgetReboot/Remote_Relay repository on GitHub; these links point at the commit this page was built from.
Remote Relay: common questions
What microcontroller does the Remote Relay use?
The Remote Relay is built around the WeMos_D1_mini, from the ESP8266 family.
How big is the Remote Relay PCB?
The Remote Relay measures 71.6 × 44.2 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Remote Relay?
26 components, from 17 distinct parts. The full bill of materials is listed on this page.
Where can I download the Remote Relay design files?
From the GadgetReboot/Remote_Relay repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Remote Relay design in my own project?
The repository has no license, so all rights stay with GadgetReboot. Use it as a reference, and ask the author before reusing the design.
Can I test firmware for the Remote Relay without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP8266 firmware against it before you order a PCB.
Similar boards
ESP8266ESP8266ControllerCircuit
stuartpittaway
75 × 30 mm20 parts2LCC-BY-NC-4.01.1k
ESP8266HASwitchPlate
aderusha
60 × 40 mm8 parts2LMIT738
ESP8266RatGDO-OpenSource-D1Mini-ESP8266
Kaldek
47.8 × 63.3 mm12 parts2LMIT506
ESP8266Goatgdo
32.9 × 53.3 mm23 parts2LMIT506
ESP8266RatGDO-OpenSource-Bare-ESP8266
55 × 82.7 mm20 parts2LMIT506
ESP8266Iaq board
nkitanov
70.1 × 43.2 mm17 parts2LNo license398