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Multifunctional network device for autonomous activity in the city environment. Its main function is communication and propaganda through the Wi-Fi wireless standard. This is the hacktivism diy response to attempts by the authorities in different countries to control the Internet. The project serves as an example of the possible opposition and decentralisation of networks to ensure communications and provide notifications irrespective of whether there is access to the global internet or certain restrictions are applied.
The device consists of three standalone Wi-Fi access points based on the ESP8266 chip and Arduino Mega board, which is the core brain of the system. The device is also equipped with a keyboard for typing text and OLED screen for convenience of use. It can function based on a built-in battery (up to eight hours), or any power bank/telephone charge.
If I create network names which repeat in full popular city networks – for example "MT_FREE" (Moscow Transport) or "Online" (popular provider), then the devices of a large number of people will be automatically connected to my device, as they recognize networks based on the name. Accordingly, the captive page leaps out to them by default, thereby forcing them to communicate information. - In popular spaces similar to a café, I can create networks that are very similar to the original networks of these institutions. All I need to do is add only one space at the end of the name and the networks become externally completely indistinguishable from the original, but are recognized by devices as separate networks. This will make it possible to compromise these networks and attract people instead to my standalone networks, where they will be offered an opportunity to view specific information.
On one of the versions of the captive page I created a form for sending a message, which makes it possible to obtain feedback from people connected to my networks. I see the messages in the log file of the server and can respond to them, with changing the network name. In another version I redirected all the incoming messages from the log file to a special page that the user accesses as soon as he or she sends a message, thereby making it possible to establish a fully-fledged autonomous and anonymous chat where only the IP addresses of the devices are visible as user names.
Consequently, the device hidden in the pocket represents my small wireless pocket Internet. The only possible way of closing access to the device is to physically smother the radio frequencies of the WiFi standard. Moreover, the device makes it possible to spread propaganda, notify people, access their device briefly and create a resource for communications.
The field tests of the device demonstrated the high level of activity of users looking for free Wi-Fi and also successful hunting for devices that remember network names that I simulate with an identical name. The special log file (which is not accessible to anyone other than the network administrator) retains all the Mac addresses of devices connected at some point to network devices.
This project was inspired by my previos work "hotspot poet".
Arduino MEGA code (all sketches are a bit chaotic, but maybe they could be helpful)ESP8266 arduino codeHTML pages and CSS file (all files are qzipped, you can unzip them to edit but keep only qzip files in "data" folder while uploading them to ESP, check tutorials↓↓↓)
Some useful tutorials:
// Programming ESP as arduino// How to wire ESP-01 with FTDI usb board// Installing SPIFFS uploader for Arduino IDE
You can also check Yoursunny freewifi project, there is a tutorial which was very helpful while I was working on this project.
Schematic:
#include <FS.h>
#include <ESP8266WiFi.h>
#include <DNSServer.h>
#include <ESP8266WebServer.h>
#include <PString.h>
#include <Streaming.h>
const IPAddress apIp(192, 168, 0, 1);
DNSServer dnsServer;
ESP8266WebServer server(80);
struct PrintMac
{
const uint8_t* mac;
};
Print&
operator<<(Print& p, const PrintMac& pmac)
{
const uint8_t* mac = pmac.mac;
for (int i = 0; i < 6; ++i) {
if (i > 0) {
p << ':';
}
int b = mac[i];
if (b < 0x10) {
p << '0';
}
p << _HEX(b);
}
return p;
}
File logfile; //create log files
File logfile1;
char logbuf[256];
PString logline(logbuf, sizeof(logbuf));
PString logline1(logbuf, sizeof(logbuf));
void
appendLog()
{
Serial << millis() << ' ' << logline << '\n';
logfile << millis() << ' ' << logline << '\n';
logline.begin();
}
void
appendLog1()
{
Serial << millis() << ' ' << logline1 << '\n';
logfile1 << millis() << ' ' << logline1 << '\n';
logline1.begin();
}
void
wifiStaConnect(const WiFiEventSoftAPModeStationConnected& evt) //start collecting log data
{
logline << PrintMac{evt.mac} << " assoc";
appendLog();
}
WiFiEventHandler wifiStaConnectHandler;
void
wifiStaDisconnect(const WiFiEventSoftAPModeStationDisconnected& evt)
{
logline << PrintMac{evt.mac} << " deassoc";
appendLog();
}
WiFiEventHandler wifiStaDisconnectHandler;
void
httpDefault()
{
logline << server.client().remoteIP() << " redirect";
appendLog();
server.sendHeader("Location", "http://freewifi.lan/", true);
server.send(302, "text/plain", "");
server.client().stop();
}
void
httpHome()
{
if (server.hostHeader() != String("freewifi.lan")) {
return httpDefault();
}
logline << server.client().remoteIP() << " home";
appendLog();
File file = SPIFFS.open("/index.htm.gz", "r");
server.streamFile(file, "text/html");
file.close();
}
void
httpConnect()
{
logline << server.client().remoteIP() << " /// message: " << server.arg("email"); //if message is send then it's redirected to log2.txt
appendLog1();
File file = SPIFFS.open("/connect.htm.gz", "r");
server.streamFile(file, "text/html");
file.close();
}
void
httpPureCss()
{
File file = SPIFFS.open("/pure.css.gz", "r");
server.streamFile(file, "text/css");
file.close();
}
void
httpLog()
{
logline << server.client().remoteIP() << " log";
appendLog();
logfile.seek(0, SeekSet);
server.streamFile(logfile, "text/plain; charset=UTF-8");
logfile.seek(0, SeekEnd);
}
void
httpLog1() //message goes to log2.txt file
{
appendLog1();
logfile1.seek(0, SeekSet);
server.streamFile(logfile1, "text/plain; charset=UTF-8"); //set UTF-8 for both latin and cyrilic charters of messages
logfile1.seek(0, SeekEnd);
}
void
setup()
{
Serial.begin(115200);
Serial.println();
SPIFFS.begin();
logfile = SPIFFS.open("/log.txt", "a+");
logfile1 = SPIFFS.open("/log1.txt", "a+"); //SPIFFS memory files
WiFi.persistent(false);
WiFi.disconnect(true);
wifiStaConnectHandler = WiFi.onSoftAPModeStationConnected(wifiStaConnect);
wifiStaDisconnectHandler = WiFi.onSoftAPModeStationDisconnected(wifiStaDisconnect);
WiFi.mode(WIFI_AP);
WiFi.softAPConfig(apIp, apIp, IPAddress(255, 255, 255, 0));
WiFi.softAP("MT_FREE", nullptr, 1); //const network name wich will be changed after recieving data from serial input
dnsServer.setErrorReplyCode(DNSReplyCode::NoError);
dnsServer.start(53, "*", apIp);
server.on("/", httpHome);
server.on("/connect", httpConnect);
server.on("/pure.css", httpPureCss);
server.on("/log.txt", httpLog); //main log file
server.on("/log1.txt", httpLog1); //messages file
server.onNotFound(httpDefault);
server.begin();
Serial << "ready" << endl;
}
void
loop()
{
dnsServer.processNextRequest();
server.handleClient();
if (Serial.available() > 0) {
String text = Serial.readString(); //read incomming string to rename the softAP (network name)
char copy[50];
text.toCharArray(copy, 50);
WiFiUDP Udp;
char packetBuffer[255];
unsigned int localPort = 9999;
Serial.begin(115200);
WiFi.softAP(copy);
Udp.begin(localPort);
}
}
#include <iarduino_OLED_txt.h> //oled lib. could be any related to your OLED
iarduino_OLED_txt myOLED(0x78); //oled lib. could be any related to your OLED
extern uint8_t SmallFontRus[]; // if you need cyrilic
String stringOne, stringTwo, stringThree, stringFour; // strings for messages, don't remember if I use all of them or just 2
char packetBuffer[255];
#include <SoftwareSerial.h> //soft serial to connect MEGA with esp2866
SoftwareSerial mySerial(50, 51); //soft serial to pins
unsigned int lastStringLength = stringThree.length(); //counting string length to cut it of needed
const int buttonPin2 = 2; // keyboard buttons pins:
const int buttonPin3 = 3;
const int buttonPin4 = 4;
const int buttonPin5 = 5;
const int buttonPin6 = 6;
const int buttonPin7 = 7;
const int buttonPin8 = 8;
const int buttonPin9 = 9;
const int buttonPin10 = 10;
const int buttonPin11 = 11;
const int buttonPin12 = 12;
const int buttonPin13 = 13;
const int buttonPin14 = 14;
const int buttonPin15 = 15;
const int buttonPin16 = 16;
const int buttonPin17 = 17;
const int buttonPin18 = 18;
const int buttonPin19 = 19;
const int buttonPin20 = 45;
const int buttonPin21 = 46;
const int buttonPin22 = 22;
const int buttonPin23 = 23;
const int buttonPin24 = 24;
const int buttonPin25 = 25;
const int buttonPin26 = 26;
const int buttonPin27 = 27;
const int buttonPin28 = 28;
const int buttonPin29 = 29;
const int buttonPin30 = 30;
const int buttonPin31 = 31;
const int buttonPin32 = 32;
const int buttonPin33 = 33;
const int buttonPin34 = 34;
const int buttonPin35 = 35;
const int buttonPin36 = 36;
const int buttonPin37 = 37;
const int buttonPin38 = 38;
const int buttonPin39 = 39;
const int buttonPin40 = 40;
const int buttonPin41 = 41;
const int buttonPin42 = 42;
const int buttonPin43 = 43;
const int buttonPin44 = 44;
const int buttonPin52 = 52; //not liniar as you seen, I don't remember why, maybe because it was more easy to solder it like this.
const int buttonPin53 = 53;
int val; // variable used for debugging and detecting buttons presses in serial monitor (not softserial), not really needed but could be usefull if you have your own setup of buttons
int buttonState2 = 0;
int buttonState3 = 0;
int buttonState4 = 0;
int buttonState5 = 0;
int buttonState6 = 0;
int buttonState7 = 0;
int buttonState8 = 0;
int buttonState9 = 0;
int buttonState10 = 0;
int buttonState11 = 0;
int buttonState12 = 0;
int buttonState13 = 0;
int buttonState14 = 0;
int buttonState15 = 0;
int buttonState16 = 0;
int buttonState17 = 0;
int buttonState18 = 0;
int buttonState19 = 0;
int buttonState20 = 0;
int buttonState21 = 0;
int buttonState22 = 0;
int buttonState23 = 0;
int buttonState24 = 0;
int buttonState25 = 0;
int buttonState26 = 0;
int buttonState27 = 0;
int buttonState28 = 0;
int buttonState29 = 0;
int buttonState30 = 0;
int buttonState31 = 0;
int buttonState32 = 0;
int buttonState33 = 0;
int buttonState34 = 0;
int buttonState35 = 0;
int buttonState36 = 0;
int buttonState37 = 0;
int buttonState38 = 0;
int buttonState39 = 0;
int buttonState40 = 0;
int buttonState41 = 0;
int buttonState42 = 0;
int buttonState43 = 0;
int buttonState44 = 0;
int buttonState52 = 0;
int buttonState53 = 0;
void setup() {
myOLED.begin();
myOLED.setFont(SmallFontRus);
Serial.begin(115200);
mySerial.begin(115200);
pinMode(buttonPin2, INPUT);
pinMode(buttonPin3, INPUT);
pinMode(buttonPin4, INPUT);
pinMode(buttonPin5, INPUT);
pinMode(buttonPin6, INPUT);
pinMode(buttonPin7, INPUT);
pinMode(buttonPin8, INPUT);
pinMode(buttonPin9, INPUT);
pinMode(buttonPin10, INPUT);
pinMode(buttonPin11, INPUT);
pinMode(buttonPin12, INPUT);
pinMode(buttonPin13, INPUT);
pinMode(buttonPin14, INPUT);
pinMode(buttonPin15, INPUT);
pinMode(buttonPin16, INPUT);
pinMode(buttonPin17, INPUT);
pinMode(buttonPin18, INPUT);
pinMode(buttonPin19, INPUT);
pinMode(buttonPin20, INPUT);
pinMode(buttonPin21, INPUT);
pinMode(buttonPin22, INPUT);
pinMode(buttonPin23, INPUT);
pinMode(buttonPin24, INPUT);
pinMode(buttonPin25, INPUT);
pinMode(buttonPin26, INPUT);
pinMode(buttonPin27, INPUT);
pinMode(buttonPin28, INPUT);
pinMode(buttonPin29, INPUT);
pinMode(buttonPin30, INPUT);
pinMode(buttonPin31, INPUT);
pinMode(buttonPin32, INPUT);
pinMode(buttonPin33, INPUT);
pinMode(buttonPin34, INPUT);
pinMode(buttonPin35, INPUT);
pinMode(buttonPin36, INPUT);
pinMode(buttonPin37, INPUT);
pinMode(buttonPin38, INPUT);
pinMode(buttonPin39, INPUT);
pinMode(buttonPin40, INPUT);
pinMode(buttonPin41, INPUT);
pinMode(buttonPin42, INPUT);
pinMode(buttonPin43, INPUT);
pinMode(buttonPin44, INPUT);
pinMode(buttonPin52, INPUT);
pinMode(buttonPin53, INPUT);
digitalWrite(2, HIGH); //pull-up pins, so you don't need any resistors (much less soldering).
digitalWrite(3, HIGH);
digitalWrite(4, HIGH);
digitalWrite(5, HIGH);
digitalWrite(6, HIGH);
digitalWrite(7, HIGH);
digitalWrite(8, HIGH);
digitalWrite(9, HIGH);
digitalWrite(10, HIGH);
digitalWrite(11, HIGH);
digitalWrite(12, HIGH);
digitalWrite(13, HIGH);
digitalWrite(14, HIGH);
digitalWrite(15, HIGH);
digitalWrite(16, HIGH);
digitalWrite(17, HIGH);
digitalWrite(18, HIGH);
digitalWrite(19, HIGH);
digitalWrite(45, HIGH);
digitalWrite(46, HIGH);
digitalWrite(22, HIGH);
digitalWrite(23, HIGH);
digitalWrite(24, HIGH);
digitalWrite(25, HIGH);
digitalWrite(26, HIGH);
digitalWrite(27, HIGH);
digitalWrite(28, HIGH);
digitalWrite(29, HIGH);
digitalWrite(30, HIGH);
digitalWrite(31, HIGH);
digitalWrite(32, HIGH);
digitalWrite(33, HIGH);
digitalWrite(34, HIGH);
digitalWrite(35, HIGH);
digitalWrite(36, HIGH);
digitalWrite(37, HIGH);
digitalWrite(38, HIGH);
digitalWrite(39, HIGH);
digitalWrite(40, HIGH);
digitalWrite(41, HIGH);
digitalWrite(42, HIGH);
digitalWrite(43, HIGH);
digitalWrite(44, HIGH);
digitalWrite(52, HIGH);
digitalWrite(53, HIGH);
}
void loop() {
buttonState2 = digitalRead(buttonPin2);
buttonState3 = digitalRead(buttonPin3);
buttonState4 = digitalRead(buttonPin4);
buttonState5 = digitalRead(buttonPin5);
buttonState6 = digitalRead(buttonPin6);
buttonState7 = digitalRead(buttonPin7);
buttonState8 = digitalRead(buttonPin8);
buttonState9 = digitalRead(buttonPin9);
buttonState10 = digitalRead(buttonPin10);
buttonState11 = digitalRead(buttonPin11);
buttonState12 = digitalRead(buttonPin12);
buttonState13 = digitalRead(buttonPin13);
buttonState14 = digitalRead(buttonPin14);
buttonState15 = digitalRead(buttonPin15);
buttonState16 = digitalRead(buttonPin16);
buttonState17 = digitalRead(buttonPin17);
buttonState18 = digitalRead(buttonPin18);
buttonState19 = digitalRead(buttonPin19);
buttonState20 = digitalRead(buttonPin20);
buttonState21 = digitalRead(buttonPin21);
buttonState22 = digitalRead(buttonPin22);
buttonState23 = digitalRead(buttonPin23);
buttonState24 = digitalRead(buttonPin24);
buttonState25 = digitalRead(buttonPin25);
buttonState26 = digitalRead(buttonPin26);
buttonState27 = digitalRead(buttonPin27);
buttonState28 = digitalRead(buttonPin28);
buttonState29 = digitalRead(buttonPin29);
buttonState30 = digitalRead(buttonPin30);
buttonState31 = digitalRead(buttonPin31);
buttonState32 = digitalRead(buttonPin32);
buttonState33 = digitalRead(buttonPin33);
buttonState34 = digitalRead(buttonPin34);
buttonState35 = digitalRead(buttonPin35);
buttonState36 = digitalRead(buttonPin36);
buttonState37 = digitalRead(buttonPin37);
buttonState38 = digitalRead(buttonPin38);
buttonState39 = digitalRead(buttonPin39);
buttonState40 = digitalRead(buttonPin40);
buttonState41 = digitalRead(buttonPin41);
buttonState42 = digitalRead(buttonPin42);
buttonState43 = digitalRead(buttonPin43);
buttonState44 = digitalRead(buttonPin44);
buttonState52 = digitalRead(buttonPin52);
buttonState53 = digitalRead(buttonPin53);
/////////////////// eng charters
if (buttonState53 == LOW) { //switcher that is choosing the language is in "ENG" position, from now all the charters will be latin.
myOLED.print("ENG", OLED_R, 3);
if (buttonState2 == LOW) {
stringOne = " "; //add "space" to string
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 2;
Serial.println(val);
delay (151); //delay to make it singleshot
}
if (buttonState3 == LOW) { //ENTER that sends string to the esp2866
char copy[50];
stringThree.toCharArray(copy, 32);
val = 3;
Serial.println(val);
mySerial.println(copy);
myOLED.print("send", OLED_R, 7);
delay (1000);
myOLED.print(" ", OLED_R, 7);
}
if (buttonState4 == LOW) { //delet last charter from the string
stringThree = stringThree.substring(0, stringThree.length() - 1);
val = 4;
Serial.println(val);
delay (50);
myOLED.print(" ", 0, 5); //clean lines on OLED
myOLED.print(" ", 0, 6); //clean lines on OLED
}
if (buttonState5 == HIGH) { //shift key is not pressed, all charters are small
myOLED.print(" ", 0, 7); //clean the line where the "shift" should be writen
if (buttonState6 == LOW) {
stringOne = "1";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 6;
Serial.println(val);
delay (151);
}
if (buttonState7 == LOW) {
stringOne = "2";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 7;
Serial.println(val);
delay (151);
}
if (buttonState8 == LOW) {
stringOne = "3";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 8;
Serial.println(val);
delay (151);
}
if (buttonState9 == LOW) {
stringOne = "4";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 9;
Serial.println(val);
delay (151);
}
if (buttonState10 == LOW) {
stringOne = "5";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 10;
Serial.println(val);
delay (151);
}
if (buttonState11 == LOW) {
stringOne = "6";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 12;
val = 11;
Serial.println(val);
delay (151);
}
if (buttonState12 == LOW) {
stringOne = "7";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 12;
Serial.println(val);
delay (151);
}
if (buttonState13 == LOW) {
stringOne = "8";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 13;
Serial.println(val);
delay (151);
}
if (buttonState14 == LOW) {
stringOne = "9";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 14;
Serial.println(val);
delay (151);
}
if (buttonState15 == LOW) {
stringOne = "0";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 15;
Serial.println(val);
delay (151);
}
if (buttonState16 == LOW) {
stringOne = "-";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 16;
Serial.println(val);
delay (151);
}
if (buttonState17 == LOW) {
stringOne = "q";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 17;
Serial.println(val);
delay (151);
}
if (buttonState18 == LOW) {
stringOne = "w";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 18;
Serial.println(val);
delay (151);
}
if (buttonState19 == LOW) {
stringOne = "e";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 19;
Serial.println(val);
delay (151);
}
if (buttonState20 == LOW) {
stringOne = "r";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 20;
Serial.println(val);
delay (151);
}
if (buttonState21 == LOW) {
stringOne = "t";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 21;
Serial.println(val);
delay (151);
}
if (buttonState22 == LOW) {
stringOne = "y";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 22;
Serial.println(val);
delay (151);
}
if (buttonState23 == LOW) {
stringOne = "u";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 23;
Serial.println(val);
delay (151);
}
if (buttonState24 == LOW) {
stringOne = "i";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 24;
Serial.println(val);
delay (151);
}
if (buttonState25 == LOW) {
stringOne = "o";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 25;
Serial.println(val);
delay (151);
}
if (buttonState26 == LOW) {
stringOne = "p";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 26;
Serial.println(val);
delay (151);
}
if (buttonState27 == LOW) {
stringOne = "a";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 27;
Serial.println(val);
delay (151);
}
if (buttonState28 == LOW) {
stringOne = "s";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 28;
Serial.println(val);
delay (151);
}
if (buttonState29 == LOW) {
stringOne = "d";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 29;
Serial.println(val);
delay (151);
}
if (buttonState30 == LOW) {
stringOne = "f";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 30;
Serial.println(val);
delay (151);
}
if (buttonState31 == LOW) {
stringOne = "g";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 31;
Serial.println(val);
delay (151);
}
if (buttonState32 == LOW) {
stringOne = "h";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 32;
Serial.println(val);
delay (151);
}
if (buttonState33 == LOW) {
stringOne = "j";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 33;
Serial.println(val);
delay (151);
}
if (buttonState34 == LOW) {
stringOne = "k";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 34;
Serial.println(val);
delay (151);
}
if (buttonState35 == LOW) {
stringOne = "l";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 35;
Serial.println(val);
delay (151);
}
if (buttonState36 == LOW) {
stringOne = "z";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 36;
Serial.println(val);
delay (151);
}
if (buttonState37 == LOW) {
stringOne = "x";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 37;
Serial.println(val);
delay (151);
}
if (buttonState38 == LOW) {
stringOne = "c";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 38;
Serial.println(val);
delay (151);
}
if (buttonState39 == LOW) {
stringOne = "v";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 39;
Serial.println(val);
delay (151);
}
if (buttonState40 == LOW) {
stringOne = "b";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 40;
Serial.println(val);
delay (151);
}
if (buttonState41 == LOW) {
stringOne = "n";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 41;
Serial.println(val);
delay (151);
}
if (buttonState42 == LOW) {
stringOne = "m";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 42;
Serial.println(val);
delay (151);
}
if (buttonState43 == LOW) {
stringOne = ",";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 43;
Serial.println(val);
delay (151);
}
if (buttonState44 == LOW) {
stringOne = ".";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 44;
Serial.println(val);
delay (151);
}
}
// "no shift" end
if (buttonState5 == LOW) { // with shift pressed:
myOLED.print("shift", 0, 7);
val = 5;
Serial.println(val);
delay (1);
if (buttonState6 == LOW) {
stringOne = "!";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 6;
Serial.println(val);
delay (151);
}
if (buttonState7 == LOW) {
stringOne = "@";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 7;
Serial.println(val);
delay (151);
}
if (buttonState8 == LOW) {
stringOne = "#";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 8;
Serial.println(val);
delay (151);
}
if (buttonState9 == LOW) {
stringOne = "$";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 9;
Serial.println(val);
delay (151);
}
if (buttonState10 == LOW) {
stringOne = "%";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 10;
Serial.println(val);
delay (151);
}
if (buttonState11 == LOW) {
stringOne = "^";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 12;
val = 11;
Serial.println(val);
delay (151);
}
if (buttonState12 == LOW) {
stringOne = "&";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 12;
Serial.println(val);
delay (151);
}
if (buttonState13 == LOW) {
stringOne = "*";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 13;
Serial.println(val);
delay (151);
}
if (buttonState14 == LOW) {
stringOne = "(";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 14;
Serial.println(val);
delay (151);
}
if (buttonState15 == LOW) {
stringOne = ")";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 15;
Serial.println(val);
delay (151);
}
if (buttonState16 == LOW) {
stringOne = "_";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 16;
Serial.println(val);
delay (151);
}
if (buttonState17 == LOW) {
stringOne = "Q";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 17;
Serial.println(val);
delay (151);
}
if (buttonState18 == LOW) {
stringOne = "W";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 18;
Serial.println(val);
delay (151);
}
if (buttonState19 == LOW) {
stringOne = "E";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 19;
Serial.println(val);
delay (151);
}
if (buttonState20 == LOW) {
stringOne = "R";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 20;
Serial.println(val);
delay (151);
}
if (buttonState21 == LOW) {
stringOne = "T";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 21;
Serial.println(val);
delay (151);
}
if (buttonState22 == LOW) {
stringOne = "Y";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 22;
Serial.println(val);
delay (151);
}
if (buttonState23 == LOW) {
stringOne = "U";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 23;
Serial.println(val);
delay (151);
}
if (buttonState24 == LOW) {
stringOne = "I";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 24;
Serial.println(val);
delay (151);
}
if (buttonState25 == LOW) {
stringOne = "O";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 25;
Serial.println(val);
delay (151);
}
if (buttonState26 == LOW) {
stringOne = "P";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 26;
Serial.println(val);
delay (151);
}
if (buttonState27 == LOW) {
stringOne = "A";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 27;
Serial.println(val);
delay (151);
}
if (buttonState28 == LOW) {
stringOne = "S";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 28;
Serial.println(val);
delay (151);
}
if (buttonState29 == LOW) {
stringOne = "D";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
val = 29;
Serial.println(val);
delay (151);
}
if (buttonState30 == LOW) {
stringOne = "F";
stringTwo = stringThree + stringOne;
delay (1);
stringThree = stringTwo;
...
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