213 lines
6.8 KiB
C++
213 lines
6.8 KiB
C++
#include <Arduino.h>
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#include <U8g2lib.h>
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#include <Wire.h>
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#include <SPIFFS.h>
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#include <WiFiSettings.h>
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#include <WiFi.h>
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#include <HTTPClient.h>
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#include <SPI.h>
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#include <MFRC522.h>
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#include <ESPDateTime.h>
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#include <DateTimeTZ.h>
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#include "wifiFix.h"
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#include "pitches.h"
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#include "utils.h"
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#include "oled.h"
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#define HSPI_MISO 12
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#define HSPI_MOSI 13
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#define HSPI_SCLK 14
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#define HSPI_SS 15
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#define HSPI_RST 16
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#define BUZZER_PIN 26
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U8G2_SH1106_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, U8X8_PIN_NONE);
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MFRC522 mfrc522(HSPI_SS, HSPI_RST);
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WiFiClient *wifi = new WiFiClientFixed();
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HTTPClient *http = new HTTPClient();
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e_state state = STATE_IDLE;
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String apiUrl = "";
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const int gTimeout = 5000;
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const int scanTimeout = 15000;
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String scannedCardId = "";
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String lastStatusText = "";
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unsigned long timer = 0;
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void IRAM_ATTR TransactInterruptHandler() {
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if (state != STATE_IDLE) {
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return;
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}
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timer = millis();
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state = STATE_TRANSACT_CARDSCAN;
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}
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void IRAM_ATTR LinkInterruptHandler() {
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if (state != STATE_IDLE) {
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return;
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}
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timer = millis();
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state = STATE_LINK_CARDSCAN;
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}
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void IRAM_ATTR BalanceInterruptHandler() {
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if (state != STATE_IDLE) {
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return;
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}
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timer = millis();
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state = STATE_BALANCE_CARDSCAN;
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}
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bool cooldownCheck(long timeout) {
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if (millis() - timer > timeout) {
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state = STATE_IDLE;
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updateOLED(u8g2, state);
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return true;
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}
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return false;
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}
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void setup() {
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Serial.begin(115200);
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u8g2.begin();
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drawLogo(u8g2, LOGO_MATECARD);
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u8g2.sendBuffer();
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SPI.begin(HSPI_SCLK, HSPI_MISO, HSPI_MOSI);
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SPIFFS.begin(true);
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WiFiSettings.hostname = "afrapay-";
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apiUrl = WiFiSettings.string("AfRApay.Web API", "http://192.168.50.170:5296");
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WiFiSettings.connect();
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mfrc522.PCD_Init();
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DateTime.setTimeZone(TZ_Europe_Berlin);
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DateTime.begin();
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updateOLED(u8g2, state);
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ledcSetup(0, 5000, 12);
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pinMode(25, INPUT_PULLUP);
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pinMode(32, INPUT_PULLUP);
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pinMode(33, INPUT_PULLUP);
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attachInterrupt(25, BalanceInterruptHandler, FALLING);
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attachInterrupt(32, LinkInterruptHandler, FALLING);
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attachInterrupt(33, TransactInterruptHandler, FALLING);
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}
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void loop() {
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if (WiFi.status() != WL_CONNECTED) {
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updateOLED(u8g2, state, "WiFi disconnected :(");
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state = STATE_IDLE;
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WiFi.reconnect();
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delay(50);
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return;
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}
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switch (state) {
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case STATE_IDLE:
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updateOLED(u8g2, state);
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break;
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case STATE_TRANSACT_CARDSCAN:
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if (mfrc522.PICC_IsNewCardPresent() && mfrc522.PICC_ReadCardSerial()) {
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scannedCardId = byteArrayAsHexString(mfrc522.uid.uidByte, mfrc522.uid.size);
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mfrc522.PICC_HaltA();
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lastStatusText = "Card #" + scannedCardId;
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state = STATE_TRANSACT_VERIFY;
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return;
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} else {
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if (!cooldownCheck(scanTimeout)) {
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updateOLED(u8g2, state, String("1.50€"), String(cooldownSecondsRemaining(scanTimeout, timer)));
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}
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}
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break;
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case STATE_TRANSACT_VERIFY:
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updateOLED(u8g2, state, lastStatusText);
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tone(BUZZER_PIN, NOTE_A5, 25);
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tone(BUZZER_PIN, NOTE_NONE, 150);
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lastStatusText = cardTransaction(wifi, http, apiUrl, scannedCardId, "1.50");
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if (lastStatusText.startsWith("S:")) {
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tone(BUZZER_PIN, NOTE_C7, 650);
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state = STATE_RESULT_SUCCESS;
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} else {
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tone(BUZZER_PIN, NOTE_CS5, 100);
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tone(BUZZER_PIN, NOTE_NONE, 25);
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tone(BUZZER_PIN, NOTE_CS5, 400);
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state = STATE_RESULT_FAILURE;
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}
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lastStatusText = lastStatusText.substring(2);
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timer = millis();
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return;
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case STATE_LINK_CARDSCAN:
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if (mfrc522.PICC_IsNewCardPresent() && mfrc522.PICC_ReadCardSerial()) {
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scannedCardId = byteArrayAsHexString(mfrc522.uid.uidByte, mfrc522.uid.size);
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mfrc522.PICC_HaltA();
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lastStatusText = "Card #" + scannedCardId;
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state = STATE_LINK_VERIFY;
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return;
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} else {
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if (!cooldownCheck(scanTimeout)) {
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updateOLED(u8g2, state, "Link", String(cooldownSecondsRemaining(scanTimeout, timer)));
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}
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}
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break;
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case STATE_LINK_VERIFY:
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updateOLED(u8g2, state, lastStatusText);
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tone(BUZZER_PIN, NOTE_A5, 25);
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tone(BUZZER_PIN, NOTE_NONE, 150);
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lastStatusText = cardLink(wifi, http, apiUrl, scannedCardId);
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if (lastStatusText.startsWith("S:")) {
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tone(BUZZER_PIN, NOTE_C6, 100);
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tone(BUZZER_PIN, NOTE_NONE, 10);
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tone(BUZZER_PIN, NOTE_C6, 100);
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state = STATE_RESULT_SUCCESS;
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} else {
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tone(BUZZER_PIN, NOTE_CS5, 100);
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tone(BUZZER_PIN, NOTE_NONE, 25);
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tone(BUZZER_PIN, NOTE_CS5, 400);
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state = STATE_RESULT_FAILURE;
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}
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lastStatusText = lastStatusText.substring(2);
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timer = millis();
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return;
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case STATE_BALANCE_CARDSCAN:
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if (mfrc522.PICC_IsNewCardPresent() && mfrc522.PICC_ReadCardSerial()) {
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scannedCardId = byteArrayAsHexString(mfrc522.uid.uidByte, mfrc522.uid.size);
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mfrc522.PICC_HaltA();
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lastStatusText = "Card #" + scannedCardId;
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state = STATE_BALANCE_VERIFY;
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return;
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} else {
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if (!cooldownCheck(scanTimeout)) {
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updateOLED(u8g2, state, "Balance", String(cooldownSecondsRemaining(scanTimeout, timer)));
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}
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}
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break;
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case STATE_BALANCE_VERIFY:
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updateOLED(u8g2, state, lastStatusText);
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tone(BUZZER_PIN, NOTE_A5, 25);
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tone(BUZZER_PIN, NOTE_NONE, 150);
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lastStatusText = cardBalance(wifi, http, apiUrl, scannedCardId);
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if (lastStatusText.startsWith("S:")) {
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lastStatusText = lastStatusText + ":Card #" + scannedCardId;
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state = STATE_RESULT_DISPLAY;
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} else {
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tone(BUZZER_PIN, NOTE_CS5, 100);
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tone(BUZZER_PIN, NOTE_NONE, 25);
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tone(BUZZER_PIN, NOTE_CS5, 400);
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state = STATE_RESULT_FAILURE;
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}
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lastStatusText = lastStatusText.substring(2);
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timer = millis();
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case STATE_RESULT_SUCCESS:
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case STATE_RESULT_FAILURE:
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case STATE_RESULT_DISPLAY:
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if (!cooldownCheck(gTimeout)) {
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updateOLED(u8g2, state, lastStatusText, String(cooldownSecondsRemaining(gTimeout, timer)));
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}
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break;
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}
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delay(50);
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} |