# Distant dimmer for discharge PV surplus

I remaster the distant dimmer with the new ALL in dimmer from Robotdyn ( and support 8A !! )

Installation

make a git clone of the project and use Visual Studio Code for build and upload to the board.

for the dimmer with AC and Wemos on board

by default, D0 and D1 is used and solt on the board. D2 can be used by a Dallas 18b20, I explaint after how to make the small board

for StandAlone Boards

D5 D6 and D7 is configured (configured for a lolin NodeMCU)

On Visual Studio upload firmware AND filesystem.

First Start

at the first start, the wemos use the Wifimanager for configure the Wifi. It create a new Wifi AP 'dimmer', connect on it at 192.168.4.1 and configure your Wifi

sequenceDiagram
Start -->> New Wifi : 
New Wifi -->> Configure: 192.198.4.1
Configure -->> Start : wifi configured 
Start  -->> Run : Open Website and Dim

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Update

You can update your firmware directly by the url /update it's open OTA web page, and you can push the firmware or filesystem.

for generating firmware, on Visualstudio/ plateform IO, use the build option the build firmware is stored at .pio\build\d1_mini\firmware.elf folder

CHANGE POWER ( for control )

You can control the power by an HTTP request :

Control : http://IP/?POWER=xx the max power limit is configured on the config.html page

sequenceDiagram
Website -->> Dimmer : ?POWER=x
Dimmer -->> Website : Apply

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you can send the command by you domotic server or your pv router

Use with Pv router

You can control directly the dimmer with this PV router code https://github.com/xlyric/pv-router-esp32

It use this pv routeur,

The board was sold by a French Association ( APPER ) and a TTGO Tdisplay, A SCT013-30 and AC12 power supply need to be bought separatly The board is open source and freely for non commercial usage.

Chaine dimmer

You can now chaine multiple dimmers 2 options : equal : send the same command to the other dimmer delest (surplus) : send command to the other dimmer when the maximum power is reached on the first dimmer.

Dallas probe

You can use dallas 18b20 Probe for limit the temperature of your water tank the limit temp configuration is on /config.html page.

MQTT configuration

if you need a password for connect to your mosquitto (MQTT) serveur, the information of connection is in the file config.h

Note on Robotdyn librairie

with actual version of arduino GUI or VS, the librairie not working ( memory problem ) I modify the librairie and is called in the lib_deps variable lib_deps = https://github.com/xlyric/RBDDimmer

and called by plateformio.ini file

Create the Dallas board

on a test plate, solder the long female pin from your Wemos D1 mini

( I cut the 3rd pin ( RX ) I use the place for GND connector )

solder a 5.6kOhms resistance between 3.3V hole ( first hole ) and D2 ( last hole ) and sold 3.3V - GND and D2 to your Dallas 18b20 or add connector

you can now connect the board to the main board

Print Dallas board

A printed Board look like this