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listen to the space state #1

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listen to the space state #1

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2 changes: 1 addition & 1 deletion platformio.ini
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Original file line number Diff line number Diff line change
Expand Up @@ -21,4 +21,4 @@ monitor_speed = 115200
upload_speed = 1000000
lib_deps =
tzapu/WifiManager

knolleary/PubSubClient
31 changes: 30 additions & 1 deletion scarlettscroller.ino
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,8 @@
#include <Arduino.h>
#include <WiFiUdp.h>

#include <PubSubClient.h>

#include <ArduinoOTA.h>

#define print Serial.printf
Expand All @@ -35,6 +37,18 @@ static int scrolling = 0;
static char scroll_buf[1501];
static int scroll_pos = 0;

static WiFiClient wifiClient;
static PubSubClient mclient(wifiClient);

static bool enabled = false;

static void mcallback(char *topic, byte *payload, unsigned int length)
{
enabled = payload[0] == '1';
if (!enabled)
draw_clear();
}

static int do_pix(int argc, char *argv[])
{
if (argc < 4) {
Expand Down Expand Up @@ -230,6 +244,9 @@ void setup(void)
ArduinoOTA.onEnd([](){draw_clear();});
ArduinoOTA.begin();

mclient.setServer("mqtt.vm.nurd.space", 1883);
mclient.setCallback(mcallback);

led_enable();
}

Expand All @@ -240,8 +257,20 @@ void loop(void)

unsigned long ms = millis();

mclient.loop();
if (!mclient.connected()) {
Serial.println(F("Attempting MQTT connection... "));

if (mclient.connect("johansson")) {
mclient.subscribe("space/statedigit");
Serial.println(F("Connected to MQTT server"));
}
}

// handle currently scrolling text with priority
if (scrolling > 0) {
if (enabled == false) {
}
else if (scrolling > 0) {
int scroll_tick = millis() / 20;
if (scroll_tick != scroll_tick_last) {
scroll_tick_last = scroll_tick;
Expand Down