Upload files to "Kode Program Alat Tulis Saldo Digital Berbasis Esp32"
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#include <SPI.h>
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#include <TFT_22_ILI9225.h>
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#include <Wire.h>
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#include <Keypad_I2C.h>
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#include <Adafruit_PN532.h>
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#include <WiFi.h>
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#include <PubSubClient.h>
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#define PN532_SCK (13)
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#define PN532_MISO (12)
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#define PN532_MOSI (14)
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#define PN532_SS (33)
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#define TFT_CS 5
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#define TFT_RST 16
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#define TFT_RS 17
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#define TFT_SDI 23
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#define TFT_CLK 18
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#define TFT_LED 4
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#define WIFI_SSID "KOSAN KAMAR DEPAN"
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#define WIFI_PASSWORD "ngoooook"
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#define MQTT_SERVER "192.168.100.77"
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#define MQTT_PORT 1883
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#define MQTT_TOPIC ""
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#define MQTT_TOPIC_PZEMIN3 "pzemin3/power"
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#define MQTT_TOPIC_SISA_SALDO "home/Sisa_saldo_strin"
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#define MQTT_TOPIC_RELAY1 "home/relay1"
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#define MQTT_TOPIC_RELAY2 "home/relay2"
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TFT_22_ILI9225 tft = TFT_22_ILI9225(TFT_RST, TFT_RS, TFT_CS, TFT_SDI, TFT_CLK, TFT_LED);
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Adafruit_PN532 nfc(PN532_SCK, PN532_MISO, PN532_MOSI, PN532_SS);
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String idcard, power, Sisa_saldo_strin;
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const byte ROWS = 4; // Four rows
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const byte COLS = 4; // Four columns
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char keys[ROWS][COLS] = {
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{ 'D', '#', '0', '*' },
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{ 'C', '9', '8', '7' },
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{ 'B', '6', '5', '4' },
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{ 'A', '3', '2', '1' }
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};
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byte rowPins[ROWS] = { 0, 1, 2, 3 }; //connect to the row pinouts of the keypad
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byte colPins[COLS] = { 4, 5, 6, 7 }; //connect to the column pinouts of the keypad
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Keypad_I2C kpd(makeKeymap(keys), rowPins, colPins, ROWS, COLS, 0x20, PCF8574);
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WiFiClient wifiClient;
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PubSubClient client(wifiClient);
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long time_1 = 0;
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int interval = 1000;
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char display = '0';
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void callback(char* topic, byte* payload, unsigned int length) {
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String message = "";
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for (int i = 0; i < length; i++) {
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message += (char)payload[i];
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}
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Serial.println(message);
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Serial.print("Message arrived [");
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Serial.print(topic);
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Serial.print("] ");
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if (strcmp(topic, MQTT_TOPIC_PZEMIN3) == 0) {
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power = message;
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}
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if (strcmp(topic, MQTT_TOPIC_SISA_SALDO) == 0) {
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Sisa_saldo_strin = message;
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}
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}
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void setup() {
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tft.begin();
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tft.setOrientation(1); // Adjust screen orientation as needed
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tft.setFont(Terminal12x16);
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tft.setBackgroundColor(COLOR_BLACK); // Set background color to black
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tft.clear();
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nfc.begin();
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uint32_t versiondata = nfc.getFirmwareVersion();
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if (!versiondata) {
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Serial.print("Didn't find PN53x board");
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while (1)
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;
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}
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nfc.SAMConfig();
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Serial.println("Waiting for an NFC card...");
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Wire.begin();
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kpd.begin(makeKeymap(keys));
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Serial.begin(115200);
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Serial.println("start");
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// Connect to Wi-Fi
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WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
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while (WiFi.status() != WL_CONNECTED) {
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delay(1000);
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Serial.println("Connecting to WiFi...");
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}
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Serial.println("Connected to WiFi");
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// Connect to MQTT broker
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client.setServer(MQTT_SERVER, MQTT_PORT);
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client.setCallback(callback);
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reconnect();
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}
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void loop() {
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//baca keypad
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char key = kpd.getKey();
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//ganti halaman jika input berbeda dengan halaman sebelumnya
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if (key != NO_KEY) {
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display = key;
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Serial.println(key);
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tft.clear();
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}
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//buat ganti halaman
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switch (display) {
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case '1':
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printText(10, 10, "Masukkan Nominal:");
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isisaldo();
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break;
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case '2':
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printText(10, 10, "Silahkan Tap ");
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printText(10, 30, "Kartu");
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readMessageFromCard(2, 1);
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break;
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case '3':
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cutoff();
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break;
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case '0':
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displayMenu();
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break;
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case 'A':
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sendRelayCommand(MQTT_TOPIC_RELAY1, "ON");
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break;
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case 'B':
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sendRelayCommand(MQTT_TOPIC_RELAY1, "OFF");
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break;
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case 'C':
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sendRelayCommand(MQTT_TOPIC_RELAY2, "ON");
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break;
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case 'D':
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sendRelayCommand(MQTT_TOPIC_RELAY2, "OFF");
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break;
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default:
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break;
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}
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// Handle MQTT client
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if (!client.connected()) {
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reconnect();
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}
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client.loop();
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}
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void isisaldo() {
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int nominal = readNominalFromKeypad();
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tft.clear(); // Hapus teks sebelumnya
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printText(10, 10, "Nominal: " + String(nominal));
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printText(10, 30, "Tap Kartu");
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writeNominalToCard(2, 1, nominal);
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String payload = String(nominal);
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client.publish(MQTT_TOPIC, payload.c_str());
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delay(4000);
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tft.clear();
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display = '0';
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}
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void reconnect() {
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// Loop until we're reconnected
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while (!client.connected()) {
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printText(10, 10, "MQTT CONNECTING...");
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// Attempt to connect
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if (client.connect("ESP323_Client")) {
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printText(10, 30, "connected");
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tft.clear();
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client.subscribe(MQTT_TOPIC_PZEMIN3);
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client.subscribe(MQTT_TOPIC_SISA_SALDO);
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break;
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} else {
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Serial.print("failed, rc=");
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Serial.print(client.state());
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Serial.println(" try again in 5 seconds");
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// Wait 5 seconds before retrying
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delay(5000);
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}
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}
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}
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void readMessageFromCard(uint8_t block, uint8_t sector) {
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uint8_t success;
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uint8_t uid[] = { 0, 0, 0, 0, 0, 0, 0 };
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uint8_t uidLength;
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success = nfc.readPassiveTargetID(PN532_MIFARE_ISO14443A, uid, &uidLength);
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if (success) {
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idcard = "";
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for (byte i = 0; i < uidLength; i++) {
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idcard += (uid[i] < 0x10 ? "0" : "") + String(uid[i], HEX);
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}
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printText(10, 10, "ID CARD : ");
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printText(120, 10, idcard);
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uint8_t keyData[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
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if (nfc.mifareclassic_AuthenticateBlock(uid, uidLength, sector, 0xFF, keyData)) {
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Serial.println("Authentication successful.");
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uint8_t readBlock[16];
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if (nfc.mifareclassic_ReadDataBlock(block, readBlock)) {
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Serial.print("Read Data from Block ");
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Serial.print(block);
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Serial.print(": ");
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for (byte i = 0; i < 16; i++) {
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Serial.print(readBlock[i], HEX);
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Serial.print(" ");
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}
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Serial.println();
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printText(10, 30, "Saldo : ");
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printText(100, 30, (char*)readBlock);
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printText(10, 50, "Kembali (0)");
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delay(4000);
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tft.clear();
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display = '0';
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} else {
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Serial.println("Failed to read data from the card.");
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}
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} else {
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Serial.println("Authentication failed.");
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delay(4000);
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tft.clear();
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display = '0';
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}
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}
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}
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void cutoff() {
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if (millis() >= time_1 + interval) {
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time_1 = millis();
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printText(50, 10, "Cut Off Menu");
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printText(10, 30, "Power : " + power + "W");
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printText(10, 50, "Saldo : " + Sisa_saldo_strin);
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printText(10, 70, "A. Nyala K1");
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printText(10, 90, "B. Mati K1");
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printText(10, 110, "C. Nyala K2");
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printText(10, 130, "D. Mati K2");
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}
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}
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void printText(int x, int y, String text) {
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int lineHeight = 16; // Default font height
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int charWidth = 12; // Default font width
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int cursorX = x;
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int cursorY = y;
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for (int i = 0; i < text.length(); i++) {
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char character = text[i];
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if (character == '\n') {
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cursorY += lineHeight;
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cursorX = x;
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} else {
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tft.drawChar(cursorX, cursorY, character);
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cursorX += charWidth;
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}
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}
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}
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int readNominalFromKeypad() {
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String input = ""; // String untuk menyimpan input dari keypad
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while (true) {
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char key = kpd.getKey();
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if (key != NO_KEY) {
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if (key == '#') { // Jika '#' ditekan, proses input selesai
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break;
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} else {
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input += key; // Menambahkan karakter ke string input
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}
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}
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}
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return input.toInt();
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}
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void writeNominalToCard(uint8_t block, uint8_t sector, int nominal) {
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char message[16];
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snprintf(message, sizeof(message), "%d", nominal);
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writeMessageToCard(block, sector, message);
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}
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void writeMessageToCard(uint8_t block, uint8_t sector, char message[16]) {
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uint8_t uid[] = { 0, 0, 0, 0, 0, 0, 0 };
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uint8_t uidLength;
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if (nfc.readPassiveTargetID(PN532_MIFARE_ISO14443A, uid, &uidLength)) {
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uint8_t keyData[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
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if (nfc.mifareclassic_AuthenticateBlock(uid, uidLength, sector, 0xFF, keyData)) {
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printText(10, 50, "Autentikasi ");
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printText(10, 70, "Berhasil");
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printText(10, 90, "Kembali (0)");
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uint8_t messageData[16];
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for (int i = 0; i < 16; i++) {
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if (i < strlen(message)) {
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messageData[i] = message[i];
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} else {
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messageData[i] = 0x00; // Fill the remaining bytes with 0x00
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}
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}
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if (nfc.mifareclassic_WriteDataBlock(block, messageData)) {
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Serial.print("Writing Message to Block ");
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Serial.print(block);
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Serial.println(" successful.");
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} else {
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Serial.println("Failed to write data to the card.");
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}
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} else {
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Serial.println("Authentication failed.");
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}
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}
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}
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void displayMenu() {
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printText(10, 10, "MENU");
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printText(10, 30, "1. ISI SALDO");
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printText(10, 50, "2. CEK SALDO");
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printText(10, 70, "3. CUT OFF");
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}
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void sendRelayCommand(const char* topic, const char* command) {
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if (client.publish(topic, command)) {
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tft.clear();
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printText(10, 10, "Command Sent:");
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printText(10, 30, command);
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delay(2000);
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tft.clear();
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display = '0';
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} else {
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tft.clear();
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printText(10, 10, "Failed to send:");
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printText(10, 30, command);
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delay(2000);
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tft.clear();
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display = '0';
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}
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}
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