Arduino read array from sd card. Commented Aug 27, 2019 at 10:42.

Arduino read array from sd card The file is on the SD card. The text file's content format is SETTING=VALUE, Ex. The main goal is to I can follow other posts with how to loop through this CSV on my SD card and print it to the serial monitor; however I am a bit lost of how to read it into an array. These modules can not handle high-capacity memory cards. Although I'm using a Mega, the ammount of RAM available is pretty limited. program should align the bytes as two HEX values on arduino terminal. I have the first line abcde12345, it would display like this. Please help! Thanks Using Arduino Strings or char arrays to process the load would likely both be problematic. I am using the arduino uno along with the arduino ethernet shield which has the micro SD slot, the ID-20 RFID reader and the I2C/TWI LCD1602 Module. bembe24 January 26, 2017, 4:32pm 1. Projects. Background: Making an in-car computer for high speed rally events. I got this To read the key-value from the Micro SD Card and convert it to int, float, string, See Arduino - Read Config from SD Card. 1: // write String variable to SD card in line myFile. Please help!!!!! /* SD card read/write This example shows how to read and write data to and from an SD card file The circuit: * SD card attached to SPI bus as follows: ** MOSI - pin 11 ** MISO - pin 12 ** CLK - pin 13 ** CS - pin 4 created Nov 2010 by David A. If the values You read data from the SD card just like from the serial port - one character at a time. Reading from file is basically the same as you need. read());" line. . open Arduino IDE. I am doing a job, I need to read the value from excel to arduino, and output the value into an analog pin, but not only one excel file, are many files, there are many numerical data in excel, so need to read excel directly File to output, or even can transfer the excel file to another file to read it. Every second the pressure sensor is read, displayed on the LCD and stored in a 10 places array. // Function to read a text file one field at a time. I tried to use the read file function from the specific SD Basically the function needs a pointer to a buffer to store the data in. txt 56 52 49 50 57 49 48. Furthermore you need a function to read a line an put it in a given array index, something like Hello, I've connected an LCD and SD card to the arduino UNO, the card is recognised and its reading the file. I need to get all the file names from a specific folder inside the SD card and save them to an array. I want to transfer igc formatted gps data from sd card to array. I want to do something similar to what loadtxt() does in python basically myArray[]=loadtxt('myFile') text file contains : 1 11 106 5 52 7 31 20 . 6: 7476: May 6, 2021 Read What is the code you used for reading from the SD card (the read file function), and what exactly means ' it didn't work' ? – Michel Keijzers. For example, if the data file is as below: 10,15,23,108,65 15,86,97,54,180 178,65,107,65,10 etc. Dear all, I have a problem with a program that I am developing I am using and Arduino Ethernet Shield with the incorporated SD. txt file is done in this way: 131. This whole process repeats until there is no more I'm trying to read the value 1005 (last line), starting from char 43 until char 47 inclusive. You assign all the array of pointers to this same one string: After further research, I got how . Keep the array NULL terminated, or append a NULL at the end. It will then compare the values to what a sensor reads. However, I am uncertain how to allow the matrix to be "seen" by setup() and loop(), as the matrix is defined within my ReadCardInfo Here is the situation: Open a text file from the SD card of the eth shield: CHECK Read and split the information of each row into two different variable: CHECK (from some code on this forum) Make an array out of the two diffrent variable, the first is the array index and the second data is the content of the same index: Unable Here is my txt fil Here is a simple function for reading CSV text files one field at a time. SD card file storage: First, I read a data from SD card. In a text file i have: "1 First" "2 Second" "3 Third" "4 Fourth" How would i get the arduino to take the current value on Hi, can someone can help me with code. TXT. So, in order to read the entirety of the file you have to remove the Serial. Using Arduino. This blows my SRAM and crashes the program. Other Hardware. 1 Like. Open "data. Should i read the a buffer of example 30 characters, then check if there is a eol. Hence, Arduino should read this file from the SD card module and display it on OLED Screen. Ie - Original tex I'm playing with the sd card read/write tutorial. Did some researching and came across this site explaining that it is better and faster to store it in . Arduino Forum Read from SD card to LCD screen. I tried with no array ints, I am starting a project in Arduino and I need to read data from an CSV stored in an SD card. Now reading : reading from /graphPV. I am working on a sketch where I need to open a text file and get the text from a specific line number. David. The Overflow Blog Four approaches to creating a specialized LLM. If possible, it would be better to store binary files on the SD card instead of text files, so you just read every bytes of a file and store them in the array directly, no need to watch for , or to convert hex strings, and it will be much faster I need to access large amount of data in my project. Every 10th second the average of the 10 last measurements are stored on the SD card I wish to display the last 20 entries from a . const uint8_t File[1024] PROGMEM = { 0x00,0x00,. This process repeats with a second set of 84 characters being read off the SD card then displayed. My MEGA2560 has lots of Flash memory but I want to do it. Read first line data 3. txt" from SDcard 2. Hi, I am new to arduino and am a fair novice in programing. The text file contains numbers in the form of: 1,2,3,4,5,6,7,8,9,10 1,2,3,4,5,6,7,8,9,10 1,2,3,4,5,6,7,8,9,10 . What I am trying to do is build an array of file names. This is what I need. The only thing I can do is display all text written in file to the serial monitor. write portion and convert the characters into char:. The Mega2560 is a bit slow at decoding JPG but it is comparable to displaying BMP from SD card. The txt or csv will have multiple lines with 2 rows of values. array a = [1985,1] array b= [1985,2] array c= [1985,3] array d= [1985,4] array e= [1985,5] In the attached file, there are 5 columns Hello everybody, My project is to read a bitmap from an SD card and show it on an OLED. Programming. I have a problem reading a specific line in a file from You have to parse the character array in order to convert it to floats. val1 and val2. arduino-mega; sd-card; array; or ask your own question. 2: 843: May 6, 2021 Using Nicooo: The output: Request_Mode=<Auto> Set_Temp=<190> So far i'm fine, it succesfully reads from the SD. First I changed the bitmap to hexadecimal unsigned char variable as shown in the OLED example for drawing a bit map. I will add the code to the question and modify it – Teofil Sandu. The Serial class derives from Print. It only requires a character array two bytes longer than the longest field. h> #include I am currently in the middle of creating a Persistence of Vision Display project using an Arduino Nano; The POV display code would access the color values held in an array and send them to the LEDs. Hi, i have been working for the last 2 days trying to understand how to read data from an SD card and get it into an int array with my skill level it has been a much more difficult task than i thought I have tried to use other peoples programs but have not been able to undersandt what is going on below is what i have come up with which is working and if no one thinks Hi. So its 24*10 comma separated variables. mp3 This creates the array of char pointers you needed: char* arrayStrings[13]; But those are just the pointers, not the strings themselves. Writing it into an array of the form: array[24][10] (so pretty self explanatory). h> Relatively new to Arduino's, and I'm trying to Use the SD Card Module to store a bitmap and display it on an OLED but I'm a bit stuck! it takes a pointer to a byte array. This guide collects compatible I have a text file with an IR raw code that I need to read from the SD in order to send it and I don't know how to do it. They need to know this because they can NOT determine the size of the array AND the size of the array is not an indication of how much useful data is in the array. You reduce the SD read time at the expense of a bit more processing. print(myChar); } I believe I can have an array as large at I want as long as I have ram for Hi all. Any suggestions on a way of doing this that won't take up RAM? If I write the array to flash (PROGMEM) will I be . "read ()" #include <SPI. show() and - voila - for some magic reason all the data read from SD card is already shown by the LED matrix. The values are properly storage in a file. Where do you do a read from SD card? I see just a I made this code just for testing purpose, I wanted to read an integer from txt file stored in SD card and use that value to control led on off delay ! the integer is extracted fine, but the LED is not turning On or OFF, ive tried putting a constant instead of the value in the txt file but it is still not working. When I create a text file in notepad, copy it to an sd card and open it using the arduino, the formatting is different. txt" 6. By using an array with one entry you get a pointer to a buffer that is big enough for one (32-bit) integer. your help will be much appreciated. txt file on the SD card (Ethernet shield on a Mega2560). chrisnet July 18, Putting all such variables in a struct could be a good choice, as you can then copy the contents of the struct as raw data to/from the card (though getting at it from another system like a PC would require knowledge of how the Arduino compiler packs structs). how to create array with separator comma . The first is that the parameter being passed to atof() is not a zero terminated array of chars and secondly there is a parenthesis missing. println (myCharArray); // write char array to Hello, Been scratching my head for a little while, I cant seem to figure out how to read a file name of a file I have on SD card, and save the file name (not its contents, just the file name itself) to a string. user: abcde pass: 12345 then after reading arduino will delete that first line and will read the next line. txt" from SDcard. The task is to parse the text file into variables. arduino. Mellis The atof() function operates on an array of chars terminated by a zero, otherwise known as a C style string. -- I need the Arduino to read the first line on the text file, and separate the first 5 char and last remaining char . I can read the data from the file using the SdFat readwrite sketch. txt file on an SD card. But now i want to put this output into a string, so i uncomment the "//SD_Read=SD_Read+statusFile. read. I know to read data from SD but dont know how to map data available in sd with Arduino declared 2D Array? Sharing a part of code to understand you (but it dont contain SD read function) hey guys i try to read certain words from text file in sd card the fille is something like 2000 chars and i want to read just few words how i can do it? thanks in advance. Writing a CSV file to an SD card is a fairly easy matter, create a string, add a comma between each number and send that string to the SD card. So, it's the Serial class' implementation of the virtual write method that ultimately gets called to write() Hi I have a Yun Shield attached to UNO (using bridge) I am able to read sensor and write to txt without problem. I have to read lines of a long . I am writing code for an arduino mega that is meant to read MIDI files from an SD card and then spit out a digital output for each "note" through the digital output pins. txt The purpose is to have an arduino id and time/date started to keep track of readings as I am deploying 15-20 of these Hi. I'm able to open the file, position the cursor with seek to the desired position but then I'm stuck as I don't know how to read the 5 bytes (store them in an array) and afterwards use the array as a variable. I have a file "CONFIG. cc/en/Tutorial/LibraryExamples/Listfiles. You can access it from File → Examples → SD → listfiles. The code for reading the values is read but it seems that I cannot set up an array without knowing the My data is in a text file in sd card, and i am trying to make it an array in arduino. The write works but the read does not. I'm playing with the sd card read/write tutorial. ino SD Card Type: SDSC 968MB. You will have to read all the data in from your SD card and then pass the result to . If the data to read is, say just The task is to parse the text file into variables. read works: It reads the character its cursor is pointing at while advancing the cursor. I only need to read one line of the file at a time (could be the 1st, 5th, 200th, whatever). Hardware Required. All values are numbers < 50000. It was possible to read the file with the card in the line and display the contents of the line in the monitor fo Good afternoon, comrades. The thing is, firstly I store all the data that comes from the voltage signal in an array of ints (15000 positions) and then I write it in the SD card but when I executed the code, the arduino simply does nothing. You don't have to, it's just one way of doing it. I have got the SD card working and I can read the file one line at a time. The problem I am struggling with is I am working on an system and need to read values on an sd card. The module interfaces in the SPI Is there a way to create an array of all files on a SD card using Arduino? This is a great way to list files and works: https://www. Is there is anyway to read hex data from file located in sd card and assign it to uint8_t array? the following example showing direct hex value to uint8_t variable and no issue with that. And you then get Reading data from SD card. It is protected from long fields and does not use dynamic memory, like the String type. If they match, it will stop searching the txt file. File on Browse through a series of examples on how to read and write to SD cards from an Arduino board. What I would like to achieve is for the arduino to open the sd file, take line one, split it into its two values. Hello, This involves a couple different topics so I figured general programming guidance would cover all my bases. Arduino: read a specific line from SD card. saving this array 84 129 106 139 99 20 112 107 18 138 4 19 40 49 time spent for saving : 59 mS. read();" line and comment the "Serial. But my file consist of long strings like this: B09101 Hello, I have installed an SD formatted to FAT32, and I am reading a txt file with data 0-255. Code structure: 1. (values do not matter/are random, number of values are unknown/ can change depending on text file) this Hi, I need a help from the community to read the set of data points column wise and save complete 1st column's data set as a array variable in Arduino. At the end, result would be like this, array[0]=-32, array[1]=-20. I am a novice arduino, do not know how to deal with, My English is not good, so Hello, I connected the cnc shield and 2 stepper motors to my Arduino uno board and uploaded the "GRBL" library. (Just not pulling anything from it yet) I have 2 switches connected raising or lowering a number displayed (+1 or -1) on the screen. TXT" saved on my SD card, the contents are as follow: CONFIG. I have now saved all my waypoints on an SD card. How can I read the GCodes in the SDCard with Arduino nano and send them to my Uno card via Rx-Tx connection and run them? I would I modified the SD sketch to read WIFI setting from a file named CONFIG. ex. Displays. String finalString = ""; while (mappa. Your SerialUSB. write(statusFile. h contains data of raw Bitmap i. My first problem was, i needed an array that could change sizes during the runtime. General Guidance. Each number in separate line. dat file then in . I need to find only those that end with ". Is it possible to do something like this? 1anyone have any clue how i could store a byte array on the arduino sd card and then load into into progmem for display on an oled? i have the function to display a const unsigned char [] PROGMEM = { to the oled, i just need to get the byte array in from the sd card Read and display binary bitmaps in txt from SD. 00000000 255. mp3 to 9999. But you can also read the variables one by one; the big problem at present is that your code doesn't have any So I planned to store all array in SD card and will fetch details from it. Similarly, continue for n number of columns. There is no fast way to do this: since the Arduino has no FPU, anything involving floats is slow. I am new to this and not sure how to go about it. Input read data into int "TargetCur" 4. Read Line by Line SD Card. The example sketch works fine. Once action above completed, read second line data from "data. I can do by reading the text file into an array, but the text file can be up to 20k at times. The idea here is that I don't know how many files are on a card. println(atof(read_buffer[0]); has 2 problems. txt file stored in an SD but I still haven't understood which would be the better solution for my problem. Hi I need some help with my project: I want to read values from a txt file on SD card and store them in an array. Basically the read function needs a pointer to a buffer to store the data in. I'm looking for a fast efficient way of writting to a SD card. I am very new to programming and think the values would either be array of string or array of char. Hey guys, I have a text file on an SD card and I would like to read this into an array on my Arduino. (I just need to read one line at time) the format Double click on the "SDCard1" component and in the Elements window drag "File" to the left side ; Now on the Left side of the Elements window select "File1" and in the properties window set "New Line" to False, "Path Name" to TEST. Step 1: What Is SD and Micro SD Card Module? The SD and micro SD card modules allow you to communicate with the memory card and write or read the information on them. My current milestone is to read a test text file in the SD card and save it as a copy on the same card, all within Arduino A. I'm trying to find a answer to this one but every exemple I find is people putting Int (exemple: 123,10,200) into a Array from a SD card. You can use the principle of example 2 in Serial Input Basics - updated; that will read serial data into a nul terminated character array and when a '\n' is encountered it has 'read a line'. h> #include <SD. I'm fairly new here so I'm still learning and I hope someone can help me, please! I need to read sets of 5 integer variables one line at a time from a CSV file stored on an SD card. can someone please help me write a code that can read 24 bit bmp file from an SD card, save converted 8 bit bmp internally, and display 8 bit bmp pixel values on arduino terminal as a 2d matrix. txt and then adding the contents (one line) to file. Usually, the maximum identifiable capacity of these modules is 2 GB for SD cards, and 16 GB for micro SD cards. h> const int chipSelect = Hello, First some project info I'm building a small pressure data logger for my agricultural sprayer. What I have spent hours and days on, is being able to read one waypoint at a time. Using an SD card to store the bitmap images converted into a 24bits array due to the limited storage of the Arduino Nano, the only issue now is getting the main The program I have created runs out of space quickly as I add more waypoints to the array. Second i put this variable in an text file and the Learn how Arduino reads key-value from a config file on Micro SD Card and saves it in int variable, float variable, and string variable. The data is stored as the following: id, value, date. Arduino Forum Parsing a text file from an SD card. Then, call atoi() or atol(). Which works for a 255 char limit but I would like 350. This article was revised on 2021/11/18 by Karl Söderby. e. Hi There, I am using a ESP8266 and am trying to read text from a text file to char array. Hello community, I have the following issue: I'm trying to sampling and store a voltage signal using the ADC and also the SD card module. Hi, i want to read data from a txt file stored in sd card with arduino(uno) the file structure is like this: [2 2 3 4 5 3 1 5 8 2 4 4 5 6 7 4 5 6 8 1] How to read a file on sd line by line. }; It should be displayed on OLED Screen(i2c 128x64) from SD Card. read(); } import your bmp file into the SD card. If the Arduino (in this case an ESP32) should crash or get without power, I To use these modules with Arduino you need the SD library. Thanks in advance. I am attempting to alphabetically sort a list of files on an SD card, as part of a project to make an SD file browser using a Teensy 4. Reading the whole file into an array an then iterating through the array backwards works until the file gets to a size that makes the array too large for RAM. What I want to do is read the file, filter by date and then store the values by id. I'm using SD. parse() method. The csv file must be read from SD card. 51 56 53 49 51 55 55 time spent for reading : 81 mS. I can read The file. h> File myFile; union { // This Data structure lets byte asBytes[4]; // us take the byte array uint8_t asint[1]; // sent from I am not too familiar with arduino I not only need to read from the text file, but i need to store the data into an array. i need to read values from sd card, the txt value separated by comma e. Now I need to read the file and save each line to array converting to unsigned int. (SD card is SD_Write_Read_Array_ReadTest. I also want to read the values from the SD card and drive the servos. What I'd like to do is read from a SD card some Strings from a text file, take that and put it into a Array, text file is easy enough, it looks like that: Yellow White Red Blue Only colours separated with a carriage return ('\\n') So far I can So I am trying to read in a matrix of values from an SD card, and I am successfully doing so. the code in the void setup seems to run fine, i used serial communication Using the SdFat library, is there a way to read the contents of a folder and look for files that end with a ". hello guys, i have a c++ code, but i cant convert it to arduino language. and so on and so fort. Each id will correspond to different values from that same date. Goal is to read it line by line and input to my int "TargetCur". Atharva. I've been searching the forums and I only found like two people with this problem, but I think that only one managed to get close to the answer, is this: Read a specific line from SD card I don't know if it succeeded, but with trying to use the codes they sent in that forum and they Hello, i'm using arduino DUE and have the following problem: I'm storing 18 values of a sensor calibration in a SD card that are betwen 0-250. In the Hello! I am using an Arduino Uno and an Adafruit SD card shield to read 2 potentiometers, write the values (0- 1023) to the SD card and drive 2 servos. system Closed November 5, Hi, I'm in little trouble, I need to be able to read a line of text from a . Or it could keep track where it left off at and continue when a button is pressed. Most of the program illustrates features of the readField() function. SSID=WIFIAP01 KEY=WIFIAP01PASS I managed to separate the SETTING and VALUE with this code so I got my card not found issues all worked out and i can run this example sketch with no issues /* SD card read/write This example shows how to read and write data to and from an SD card file The circuit: * SD card attached to SPI bus as follows: ** MOSI - pin 11 ** MISO - pin 12 ** CLK - pin 13 ** CS - pin 4 (for MKRZero SD: SDCARD_SS_PIN) created Nov 2010 Hi, Is it anyhow possible to write and read a struct to a sd card? My struct looks like this: struct Pattern { byte length; byte shuffle; byte steps[12][64]; byte accentVelocity[12][2]; byte doubleSpeed; }; I would like to have one file for each pattern/struct on my sd card, but simply don't know how to do that. And sufficient Flash to store multiple JPG images as byte arrays in FAR PROGMEM. Hi, I'm trying to read a long file from a SD card, the file has information from an accelerometer, the problem is after some lines readed, arduino stop to read the file. csv file on SD card and then writes those structs in . Commented Aug 27, 2019 at 10:42. In turn this causes my program not work properly. It contains a Nano, pressure sensor, RTC clock, SD card, 16x2 LCD and one button. Read and store that data in an array, until you encounter the carriage return. etc, until 24 rows. dat" and put them into an array (to be used later)? The amount of files in that folder is unknown, but not more than 50. txt), and he wants to read only 5 characters I'm working on a project to read "current" in "data. I use a SD card through the ethernet shield. Reading CSV file data from SD Card with an Hello. And you then get an "easy" way of accessing that one integer within that buffer. i just wanna ask, what is the same as getline()(c++ code) function in arduino? i just wanted to get the first line in my SD card i can only display all text inside my SD card example: line1 <- only this line should display line2 line3 line4 line5 this code displays all line #include <SPI. txt file from an SD using an Arduino Mega 2560. And then, convert this String to charArray using toCharArray() Third, I convert this charArray to aJsonObject using aJson. In the program, I storage in the SD card some values of the an accelerometer, the number of these values are aleatory depending of the test duration. Ideally, I would do this reading in of the matrix via a function called in the setup(), and be able to manipulate the data inside of the matrix in loop(). Storage. uint8_t h_buf[ Hi! I have to log some data, and I want to do it, as everybody, as fast as possible. avibd March 8, 2018, 4:37pm 1. Unless you really have to, I would not recommend slurping the whole file into RAM. Note. My code looks like this. Here are the record and playback functions: void record(){ // function to read the pots, I read different answers on this forum about reading bytes from a . I am trying to create an RFID attendance device. float array[?? ][2];?? is the amount of coordinates that you want have simultaniously in memory. Hello everyone. Better yet, the files are actually numbers, ranging from 0001. char myChar[255]; void load() { for (char i = 0; i < 255; i = i + 1){ myChar[i] = myFile. Plan is to take a picture on Arduino A and save it to the SD card, then read and via Lora send to Arduino B which will save the information on its own SD card. csv: So I made sketch that populates array of structs with values read from . First I believe I would setup to arrays char hexVal[100][25] (up to 100 values, constant 24 char length + EOL) and then char hexID[100][] (variable length). Right now, opening a file, writting something short and closing gives me around 350 writes in 5 seconds. My . g 01,02,03 . How can I read a specific line, for example line 3 or 5. read line should read the binary data into a variable, but there is no variable assignment on the left side of file. Qsort seems to be a good solution for this, but all the examples I've seen use a char * array with the strings added in the declaration before Setup. println(value); to send the values to the SD, so the data looks like this: 15 18 117 etc. We will be walking through the example code that comes in with the inbuilt SD library. You have only one of these, which is the actual string: char myStrings[60]; You keep re-using that one string for reading from the file. 1 and a TFT display. But how does this work? Where exactly is the data read into the FastLED array Arduino B has the same setup minus the camera. I put the unsigned char variable instead of the SeeedLogo variable that was given in the example and it works. 1,2,3,4,5,6,7,8,9,10 And I am trying to read the data and strong them into an array of integer. Arduino perform action 5. After a little search,I managed to read some integer variables from sd card and stored into a buffer. I have a problem reading a specific line in a file from the SD card. I'm trying to make a simple wav player using arduino and the SD card module, i've barely started and have already encountered some problems. I will try to explain what my problem is as best as possible. read() ; } Serial. I have properly connected SDCard to my Arduino nano board and put a text file containing GCode in my SDCard. TXTand select "Elements" and click on the 3 dots button, a New Elements window will open, here drag 4X "Read Text Line" to the left side. Things run test code totally fine and my hardware/wiring is all tested and verified. My data is just bunch of int that will look like: I have 270 numbers like this i just want Arduino What your code does for the moment is read 8-bit values, send them to the UART/Terminal, then read the terminal and save a byte into the array. dat" and put them in an array that I can later You can place characters that you read from file in a character array (instead of echoing to serial monitor). // #include <SPI. the problem is not how to read these numbers, because the function that reads, memory reads as bytes. hey guys i try to read certain words from text file in sd card as (Myfile. Second, I convert this data to String. After of this storage, I need verify the values I need to read a text file on the SD card and print that to a LCD screen but when it comes to ">" in the text file I want it to pause from reading and wait for a button press to start back where it left off. read () Purpose: To relate some (hard for me) lessons learned in getting a file from an SD card into an array. I am using the SDFAT library. Arduino Forum read from sd card. When I power off and back on arduino, I need to be capable of reading those values from the SD and storage them in an Hello, I have written this code to read a text file from an SD card, the file contains the definitions for an IR remote, the file is in the format = #, as in the extract below: C0E8=PWR # Power C091=PLY # Play C04D=REC # Record C061=STP # Stop C001=PSE # Pause C07D=FFW # Fast Forward What want to do is read the IR code into an char* array and my In that SD card module, that File. I don't think that's what you want SD. I'm using a mega 2560 Thanks! I don't see where the code is printing the file names to the serial monitor. This I can do. I am working on a project that I need to read 84 characters from an SD card, I then display the text on an OLED screen (4 lines of 21 characters) after a delay the screen clears and displays the time for a set period. available()) { finalString += (char)mappa. This library is installed on the Arduino application by default. dat file on SD card for later use: #include <SD. The next line calls FastLED. Then, reset the array index and read the next set of characters. drawBitmap() tjaekel February 15, 2023, 4:21am 3. BTW: why storing the read values in an array and not directly What I want to achieve is reading from config. uyy jta bql sbhae tmq upp dpvxs wywsht btcefxf gkaao