Esp8266-led dimmer
stelioskat·esp8266-led-dimmer·layout/ESPDimmer.kicad_pcb
About the Esp8266-led dimmer PCB
Esp8266-led dimmer is an open source ESP8266 PCB design by stelioskat, published on GitHub under the MIT license. It is a 2-layer board measuring 36 × 31 mm, with 10 components from 9 distinct parts.
Its main chip is the ESP-12E, from the ESP8266 family. Other key parts include the TLV1117. By type, the board carries 3 connectors, 3 capacitors, 2 ICs, 1 transistor and 1 resistor.
It belongs with the iot & wireless and usb & debug tools designs in this gallery.
From the project
Wifi enabled LED strip dimmer that is controlled using MQTT messages.
1. Layout 1. Parts 2. Schematic 2. Firmware 1. MQTT
This is a very simple wifi enabled (ESP8266 12e) LED dimmer for single colored LED strips.
Its purpose was originally to be controlled by Node-RED (http://nodered.org) and node-red-contrib-homekit (https://flows.nodered.org/node/node-red-contrib-homekit) using MQTT events. Thus, one could control this with Apple Homekit.

Main components on the Esp8266-led dimmer
Esp8266-led dimmer bill of materials (BOM)
10 components, 9 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TLV1117 | SOT-223 | U1 |
| 1 | ESP-12E | ESP-12E | U2 |
| 1 | IRLB8721 | TO-220_Neutral123_Vertical | Q1 |
| 1 | CONN_01X03 | BARREL_JACK | P1 |
| 1 | Serial | Socket_Strip_Straight_1x03 | P2 |
| 1 | ProgMod | Socket_Strip_Straight_1x02 | P4 |
| 2 | 100n | C_0402 | C1, C2 |
| 1 | 1u | C_0402 | C3 |
| 1 | 10k | R_0805 | R1 |
Esp8266-led dimmer design files
The KiCad project lives in the stelioskat/esp8266-led-dimmer repository on GitHub; these links point at the commit this page was built from.
Esp8266-led dimmer: common questions
What microcontroller does the Esp8266-led dimmer use?
The Esp8266-led dimmer is built around the ESP-12E, from the ESP8266 family.
How big is the Esp8266-led dimmer PCB?
The Esp8266-led dimmer measures 36 × 31 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Esp8266-led dimmer?
10 components, from 9 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Esp8266-led dimmer design files?
From the stelioskat/esp8266-led-dimmer repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Esp8266-led dimmer design in my own project?
Yes, under the terms of its MIT license, which stelioskat chose for the repository.
Can I test firmware for the Esp8266-led dimmer 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.
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