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MQTT WiFi controlled mains halogen dimmer

MQTT WiFi controlled mains halogen dimmer that can be controlled by rotary controller or from home automation (OpenHab) by PIC and ESP8266

marc-spoorendonkMarc Spoorendonk
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  • Description
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  • Components 4
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  • Logs 3
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  • Instructions 0
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  • marc-spoorendonkMarc Spoorendonk

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pic ESP8266 mqtt openhab

This project was created on 01/06/2016 and last updated a year ago.

Description

MQTT WiFi controlled mains halogen dimmer that can be controlled by rotary controller or from home automation (OpenHab) by PIC and ESP8266. The 300W halogen lamp is dimmed on the primary side of a round (conventional) transformer. The dimming electronics are decoupled from the mains for easy debugging. The zerocross signal is taken from the secondary side of a small transformer that also supplies the circuit with about 3.7V (old phone charger).

Components

  • 1 × ESP8266 wifi tranceiver
  • 1 × PIC16F628A Microprocessors, Microcontrollers, DSPs / ARM, RISC-Based Microcontrollers
  • 1 × MOC3032 optocoupler Opto and Fiber Optic Semiconductors and ICs / Optocouplers and Optoisolators
  • 1 × Triac Discrete Semiconductors / Thyristors (DIACs, SIDACs, TRIACs, SCRs)

Project Logs
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  • Mains part built. Now testing.

    Marc Spoorendonk • 02/10/2016 at 22:22 • 0 comments

    The mains part with the triac is now built on perfboard. Works fine. A small reallife test showed that it also works on the 300W halogen transformer. Had to pull an extra nullwire as it wasn't present at this location.

  • Learning Fritzing

    Marc Spoorendonk • 02/07/2016 at 19:57 • 0 comments

    Learning how to use Fritzing in order to create a small perfboard to test the high-voltage part on the 300W halogen lamp.

  • ESP8266 blinking

    Marc Spoorendonk • 01/06/2016 at 20:55 • 0 comments

    Got the ESP-102 to work with Arduino IDE. Now make it speak to the PIC at 9600 baud.

View all 3 project logs

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