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‎GscriptCode.js‎

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var ss = SpreadsheetApp.openById('your spreadsheet ID here');
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var historyWeatherSheet = SpreadsheetApp.getActive().getSheetByName('Taipei City');
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var logSheet = ss.getSheetByName('Log');
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var taipeiToday = ss.getSheetByName('Sheet2');
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var nextRow = logSheet.getLastRow() + 1;
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var currentTimeDate10 = logSheet.getRange(3, 9).getDisplayValue();
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var currentTimeDate20 = logSheet.getRange(3, 11).getDisplayValue();
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var currentTimeDate30 = logSheet.getRange(3, 13).getDisplayValue();
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var currentTimeDate40 = logSheet.getRange(3, 15).getDisplayValue();
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var todayTime = logSheet.getRange(2, 3).getDisplayValue();
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function doGet(e){
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//----------------------------------------------------------------------------------
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//write_google_sheet() function in esp32 sketch, is send data to this code block
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//----------------------------------------------------------------------------------
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//get data from ESP32
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if (e.parameter == 'undefined') {
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return ContentService.createTextOutput("Received data is undefined");
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}
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//----------------------------------------------------------------------------------
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ssid = e.parameters.ssid;
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time = e.parameters.time;
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date = e.parameters.date;
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temp = e.parameters.temp;
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humid = e.parameters.humid;
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co2 = e.parameters.co2;
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//----------------------------------------------------------------------------------
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logSheet.getRange("A" + nextRow).setValue(ssid);
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logSheet.getRange("B" + nextRow).setValue(date);
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logSheet.getRange("C" + nextRow).setValue(time);
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logSheet.getRange("D" + nextRow).setValue(temp);
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logSheet.getRange("E" + nextRow).setValue(humid);
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logSheet.getRange("F" + nextRow).setValue(co2);
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//----------------------------------------------------------------------------------
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copyTodayWeather();
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findinWeatherHistory();
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//returns response back to ESP32
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return ContentService.createTextOutput("Status Updated in Google Sheet");
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}
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// get all the ID values we have in the sheet we want to check them. flat will convert all the returning
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// 2D array of values in a 1D array with all the IDs
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var idRange = historyWeatherSheet.getDataRange().getValues();
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function findinWeatherHistory() {
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// Get the new incoming data (ID and Ok/Nok) with each form submit by accessing
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// the trigger object e which is the submited and new form response row
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// Iterate for 10 years ago
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Logger.log("Looking for hystorical weather value...");
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for(i=0;i<idRange.length;i++){
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if(idRange[i][0] == currentTimeDate10){
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Logger.log("Found a match 10ys!");
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// set its value to the one submitted by the form
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tempValueTemp10 = historyWeatherSheet.getRange(i+1, 2).getValue();
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logSheet.getRange(nextRow, 9).setValue(tempValueTemp10);
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tempValueHumid10 = historyWeatherSheet.getRange(i+1, 3).getValue();
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logSheet.getRange(nextRow, 10).setValue(tempValueHumid10);
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}
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if(idRange[i][0] == currentTimeDate20){
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Logger.log("Found a match 20ys!");
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// set its value to the one submitted by the form
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tempValueTemp20 = historyWeatherSheet.getRange(i+1, 2).getValue();
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logSheet.getRange(nextRow, 11).setValue(tempValueTemp20);
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tempValueHumid20 = historyWeatherSheet.getRange(i+1, 3).getValue();
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logSheet.getRange(nextRow, 12).setValue(tempValueHumid20);
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}
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if(idRange[i][0] == currentTimeDate30){
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Logger.log("Found a match 30ys!");
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// set its value to the one submitted by the form
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tempValueTemp30 = historyWeatherSheet.getRange(i+1, 2).getValue();
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logSheet.getRange(nextRow, 13).setValue(tempValueTemp30);
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tempValueHumid30 = historyWeatherSheet.getRange(i+1, 3).getValue();
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logSheet.getRange(nextRow, 14).setValue(tempValueHumid30);
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}
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if(idRange[i][0] == currentTimeDate40){
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Logger.log("Found a match 40ys!");
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// set its value to the one submitted by the form
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tempValueTemp40 = historyWeatherSheet.getRange(i+1, 2).getValue();
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logSheet.getRange(nextRow, 15).setValue(tempValueTemp40);
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tempValueHumid40 = historyWeatherSheet.getRange(i+1, 3).getValue();
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logSheet.getRange(nextRow, 16).setValue(tempValueHumid40);
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}
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}
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}
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function copyTodayWeather() {
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Logger.log("Value to look for: " + todayTime)
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// get all the ID values we have in the sheet we want to check them. flat will convert all the returning
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// 2D array of values in a 1D array with all the IDs
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var idRange2 = taipeiToday.getDataRange().getDisplayValues();
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Logger.log("Looking for today weather value...");
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for(i=0;i<idRange2.length;i++){
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if(idRange2[i][24] == todayTime){
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Logger.log("Found a match!");
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// set its value to the one submitted by the form
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tempValueTemp = taipeiToday.getRange(i+1, 5).getValue();
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logSheet.getRange(nextRow, 7).setValue(tempValueTemp);
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tempValueHumid = taipeiToday.getRange(i+1, 12).getValue();
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logSheet.getRange(nextRow, 8).setValue(tempValueHumid);
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}
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}
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}

‎README.md‎

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# HealthDesk
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## Revision History
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## Rev1.0
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- Temp, Humidity and CO2 from SCD41 sensor
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- Publishing to GSheet
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- GSheet pulls data from historical weather database
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- LED ring effects with NeoPixel library
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## Rev1.1 (TBD)
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- Add a HMI (e-paper or LCD display)
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- Add a way to let the user force the update (before the 30 mins timer)
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- Improve conditional formatting
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## Rev1.2 (TBD)
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- Add TVOC sensor (SEN55 from Sensirion)
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- Create an eco-friendly enclosure for the device
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## Description
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An embedded system based on ESP32 and Google Sheet.
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Arduino IDE is used to flash the ESP32.
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Google Script code for additional functions on the Google Spreadsheet.
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The aim of this project is to get useful data about the environment.
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This device can be placed in an office to know when there's a need to ventilate (high CO2 values).
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It also helps having an idea of the climate change in Taipei by comparing the weather conditions of today, to those of the past.
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## How does it work?
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The device connects to a WiFi network with the credentials stored in its memory.
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If the saved network is out of range, or no credentials are present in the memory, the WiFi setup will begin.
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The ESP32 enters a WiFi setup mode by turning on an access point.
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A smartphone or PC can be used to connect to the ESP32 WiFi network. An intuitive webpage lets you pick an SSID and insert a password to connect to.
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The device restarts if the connection is successful.
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Once the device is connected to the internet, it gathers data every 30 minutes from a Sensirion SCD41 sensor connected via I2C interface.
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It then push the SSID name, current time and date, temperature, humidity and CO2 values to a Google Spreadsheet.
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The GSheet runs a Google Script (doGet) to read incoming data from the ESP32.
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An additional function is used to gather historical weather data from a different tab in the same sheet (10, 20, 30 and 40 years ago temperature and humidity data).
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## Setup
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See the instruction in main.ino for hardware setup.
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Google Script code is found in this repository.
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Google Spreadsheet template should be as below.
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<img src="https://github.com/fusiandrea28/HealthDesk/blob/main/GSheet_template.jpg" alt="GSheet page"/>
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--------
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MIT License
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Copyright (c) 2023 Andrea Fusi
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.

‎main/ledRingRGB.ino‎

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#include <FastLED.h>
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#define NUM_LEDS 12 /* The amount of pixels/leds you have */
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#define DATA_PIN 19 /* The pin your data line is connected to */
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#define LED_TYPE WS2812B /* I assume you have WS2812B leds, if not just change it to whatever you have */
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#define BRIGHTNESS 50 /* Control the brightness of your leds */
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#define SATURATION 255 /* Control the saturation of your leds */
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CRGB leds[NUM_LEDS];
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void ledRingSetup() {
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FastLED.addLeds<LED_TYPE, DATA_PIN>(leds, NUM_LEDS);
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}
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void ledLoop() {
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for (int j = 0; j < 255; j++) {
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for (int i = 0; i < NUM_LEDS; i++) {
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leds[i] = CHSV(i - (j * 2), SATURATION, BRIGHTNESS); /* The higher the value 4 the less fade there is and vice versa */
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}
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FastLED.show();
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delay(50); /* Change this to your hearts desire, the lower the value the faster your colors move (and vice versa) */
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}
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}

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