ReiMerc/slik-dispenser
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Implement logging in via touch code

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This commit is contained in:
Alexandertp 2023-12-20 22:42:42 +01:00
parent d6ed30ca78
commit 1d3e908a89
4 changed files with 183 additions and 115 deletions
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156
arduino/arduino.ino
View File

@ -1,10 +1,21 @@
#include <Arduino_MKRIoTCarrier.h>
#include <WiFiNINA.h>
#include <ArduinoMqttClient.h>
#include "state.h"
#include "motor.h"
#include "secrets.h"
#define INPUT_SIZE 4
enum state {
STATE_CONNECTING,
STATE_LOGGED_OUT,
STATE_LOGGED_IN,
STATE_INPUT_PASSCODE,
};
enum state current_state;
char input_code[INPUT_SIZE + 1];
MKRIoTCarrier carrier;
WiFiSSLClient wifi_client;
MqttClient mqtt_client(wifi_client);
@ -15,6 +26,87 @@ int motor_count_max = 64;
uint32_t green_led_color = carrier.leds.Color(0, 255, 0);
bool is_input_empty()
{
for (int i = 0; i < INPUT_SIZE; i++) {
if (input_code[i]) return false;
}
return true;
}
bool is_input_full()
{
for (int i = 0; i < INPUT_SIZE; i++) {
if (!input_code[i]) return false;
}
return true;
}
void change_state(enum state new_state)
{
// Initialize state
switch (new_state) {
case STATE_INPUT_PASSCODE:
input_code[0] = '\0';
input_code[1] = '\0';
input_code[2] = '\0';
input_code[3] = '\0';
input_code[4] = '\0';
break;
}
current_state = new_state;
draw_state();
}
void draw_state()
{
carrier.display.fillScreen(0x000);
switch (current_state) {
case STATE_CONNECTING:
carrier.display.setCursor(20, 100);
carrier.display.setTextSize(3);
carrier.display.print("Connecting..");
break;
case STATE_LOGGED_OUT:
carrier.display.setCursor(15, 100);
carrier.display.setTextSize(2);
carrier.display.print("Press Green Button");
carrier.leds.fill(green_led_color, 2, 1);
carrier.leds.setBrightness(5);
carrier.leds.show();
break;
case STATE_INPUT_PASSCODE:
if (is_input_empty()) {
carrier.display.setCursor(50, 100);
carrier.display.setTextSize(2);
carrier.display.print("Please enter");
carrier.display.setCursor(80, 120);
carrier.display.print("passcode");
} else {
carrier.display.setCursor(50, 100);
carrier.display.setTextSize(3);
for (int i = 0; i < INPUT_SIZE; i++) {
char ch = input_code[i];
if (!ch) ch = '_';
carrier.display.print(ch);
carrier.display.print(' ');
}
}
break;
case STATE_LOGGED_IN:
carrier.display.setCursor(40, 100);
carrier.display.setTextSize(3);
carrier.display.print("Logged in");
break;
}
}
void setup()
{
Serial.begin(9600);
@ -54,6 +146,7 @@ void setup()
carrier.Buzzer.beep();
mqtt_client.subscribe("dispense");
mqtt_client.subscribe("login");
change_state(STATE_LOGGED_OUT);
}
@ -71,16 +164,71 @@ void loop()
// Receive MQTT messages
int message_size = mqtt_client.parseMessage();
if (message_size) {
String topic = mqtt_client.messageTopic();
Serial.print("Got message with topic: ");
Serial.println(mqtt_client.messageTopic());
Serial.println(topic);
if (mqtt_client.messageTopic() == "dispense") {
// Parse message
char *message = (char *)malloc(message_size + 1);
for (int i = 0; i < message_size && mqtt_client.available(); i++) {
message[i] = (char)mqtt_client.read();
}
message[message_size] = '\0';
Serial.print("and payload: ");
Serial.println(message);
// Check topic
if (topic == "dispense") {
Serial.println("Dispensing...");
// Start rotating motor
motor_count = motor_count_max;
} else if (topic == "login") {
Serial.println("Logged in");
int user_id;
if (sscanf(message, "%d", &user_id) > 0) {
change_state(STATE_LOGGED_IN);
} else {
change_state(STATE_INPUT_PASSCODE);
}
}
loop_state();
free(message);
}
switch (current_state) {
case STATE_LOGGED_OUT:
if (carrier.Buttons.onTouchDown(TOUCH2)) {
change_state(STATE_INPUT_PASSCODE);
}
break;
case STATE_INPUT_PASSCODE:
touchButtons buttons[] = { TOUCH0, TOUCH1, TOUCH3, TOUCH4 };
char input_characters[] = "1234";
for (int i = 0; i < sizeof(buttons) / sizeof(buttons[0]); i++) {
if (carrier.Buttons.onTouchDown(buttons[i])) {
for (int j = 0; j < INPUT_SIZE; j++) {
if (!input_code[j]) {
input_code[j] = input_characters[i];
break;
}
}
if (is_input_full()) {
mqtt_client.beginMessage("login_request");
mqtt_client.print(input_code);
mqtt_client.endMessage();
}
draw_state();
break;
}
}
break;
}
}

9
arduino/state.h
View File

@ -1,9 +0,0 @@
enum state {
STATE_CONNECTING,
STATE_LOGGED_OUT,
STATE_LOGGED_IN,
STATE_INPUT_PASSCODE,
};
void change_state(enum state new_state);
void loop_state();

101
arduino/state.ino
View File

@ -1,101 +0,0 @@
#define INPUT_SIZE 4
enum state current_state;
char input_code[INPUT_SIZE];
bool is_input_empty()
{
for (int i = 0; i < INPUT_SIZE; i++) {
if (input_code[i]) return false;
}
return true;
}
void change_state(enum state new_state)
{
// Initialize state
switch (new_state) {
case STATE_INPUT_PASSCODE:
input_code[0] = '\0';
input_code[1] = '\0';
input_code[2] = '\0';
input_code[3] = '\0';
break;
}
current_state = new_state;
draw_state();
}
void draw_state()
{
carrier.display.fillScreen(0x000);
switch (current_state) {
case STATE_CONNECTING:
carrier.display.setCursor(20, 100);
carrier.display.setTextSize(3);
carrier.display.print("Connecting..");
break;
case STATE_LOGGED_OUT:
carrier.display.setCursor(15, 100);
carrier.display.setTextSize(2);
carrier.display.print("Press Green Button");
carrier.leds.fill(green_led_color, 2, 1);
carrier.leds.setBrightness(5);
carrier.leds.show();
break;
case STATE_INPUT_PASSCODE:
if (is_input_empty()) {
carrier.display.setCursor(50, 100);
carrier.display.setTextSize(2);
carrier.display.print("Please enter");
carrier.display.setCursor(80, 120);
carrier.display.print("passcode");
} else {
carrier.display.setCursor(50, 100);
carrier.display.setTextSize(3);
for (int i = 0; i < INPUT_SIZE; i++) {
char ch = input_code[i];
if (!ch) ch = '_';
carrier.display.print(ch);
carrier.display.print(' ');
}
}
break;
}
}
void loop_state()
{
switch (current_state) {
case STATE_LOGGED_OUT:
if (carrier.Buttons.onTouchDown(TOUCH2)) {
change_state(STATE_INPUT_PASSCODE);
}
break;
case STATE_INPUT_PASSCODE:
touchButtons buttons[] = { TOUCH0, TOUCH1, TOUCH3, TOUCH4 };
char input_characters[] = "1234";
for (int i = 0; i < sizeof(buttons) / sizeof(buttons[0]); i++) {
if (carrier.Buttons.onTouchDown(buttons[i])) {
for (int j = 0; j < sizeof(input_code); j++) {
if (!input_code[j]) {
input_code[j] = input_characters[i];
break;
}
}
draw_state();
break;
}
}
break;
};
}

32
backend/Program.cs
View File

@ -49,9 +49,39 @@ var options = new MqttClientOptionsBuilder()
await mqttClient.ConnectAsync(options, CancellationToken.None);
ApplicationState.MqttClient = mqttClient;
await mqttClient.SubscribeAsync(
new MqttFactory().CreateSubscribeOptionsBuilder().WithTopicFilter(f => f.WithTopic("login_request")).Build(),
CancellationToken.None
);
ApplicationState.DbContext = new DispenserContext();
mqttClient.ApplicationMessageReceivedAsync += delegate(MqttApplicationMessageReceivedEventArgs args) {
var payload = System.Text.Encoding.Default.GetString(args.ApplicationMessage.PayloadSegment);
switch (args.ApplicationMessage.Topic) {
case "login_request":
var user = ApplicationState.DbContext!.Users.FirstOrDefault(user => user.TouchCode == payload);
var message = new MqttApplicationMessageBuilder()
.WithTopic("login");
if (user == null) {
message.WithPayload("error");
} else {
message.WithPayload(user.Id.ToString());
}
mqttClient.PublishAsync(message.Build());
break;
}
return Task.CompletedTask;
};
ApplicationState.MqttClient = mqttClient;
Console.WriteLine("Connected");
app.Run();