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projects:c-info-wand [2015/04/19 05:13] smile created |
projects:c-info-wand [2015/04/25 03:53] (current) uk [code] |
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====== c-info-wand ====== | ====== c-info-wand ====== | ||
+ | |||
+ | {{:projects:c-info-wall.jpg?200|}} | ||
===== elektronic ===== | ===== elektronic ===== | ||
* connected launchpad | * connected launchpad | ||
- | * 3 RGB LED stripes | + | * 3 RGB LED stripes (common +) |
- | * PWM PINs: | + | * MOSFETs: IRL540N |
+ | * Schaltung ist wie beim Ingress-Table: https://github.com/c-base/ingress-table#led-driver-circuit | ||
+ | * PWM-PINs in RGB-Dreier-Gruppen: | ||
+ | * erste Gruppe: PM_3, PD_1, PD_0 | ||
+ | * zweite Gruppe: PL_4, PL_5, PM_1 | ||
+ | * dritte Gruppe: PM_7, PA_7, PM_6 | ||
+ | * Pinout siehe: http://energia.nu/img/EK-TM4C1294XL.jpg | ||
+ | ===== code ===== | ||
+ | |||
+ | * Sourcecode uses energia: http://energia.nu/ | ||
+ | * Sourcecode on github: https://gist.github.com/uwekamper/ebefbdc992248407a1e7 | ||
+ | |||
+ | <code> | ||
+ | /* | ||
+ | Fade for c-info wall at c-base with MQTT | ||
+ | */ | ||
+ | |||
+ | #include <SPI.h> | ||
+ | #include <Ethernet.h> | ||
+ | #include <PubSubClient.h> | ||
+ | |||
+ | // Apparently the preprocessor variables B0 and B1 are already taken. | ||
+ | // Therefore we use the prefix CBASE | ||
+ | |||
+ | #define CBASER0 PM_3 | ||
+ | #define CBASEG0 PD_1 | ||
+ | #define CBASEB0 PD_0 | ||
+ | |||
+ | #define CBASER1 PL_4 | ||
+ | #define CBASEG1 PL_5 | ||
+ | #define CBASEB1 PM_1 | ||
+ | |||
+ | #define CBASER2 PM_7 | ||
+ | #define CBASEG2 PA_7 | ||
+ | #define CBASEB2 PM_6 | ||
+ | |||
+ | int brightness = 50; // how bright the LED is | ||
+ | int fadeAmount = 1; // how many points to fade the LED by | ||
+ | int fadeCounter = 0; | ||
+ | |||
+ | // MQTTServer to use | ||
+ | char server[] = "c-beam.cbrp3.c-base.org"; | ||
+ | |||
+ | void callback(char* topic, byte* payload, unsigned int length) { | ||
+ | Serial.print("Received message for topic "); | ||
+ | Serial.print(topic); | ||
+ | Serial.print("with length "); | ||
+ | Serial.println(length); | ||
+ | Serial.println("Message:"); | ||
+ | Serial.write(payload, length); | ||
+ | Serial.println(); | ||
+ | fadeCounter = 20; | ||
+ | } | ||
+ | |||
+ | EthernetClient ethClient; | ||
+ | PubSubClient client(server, 1883, callback, ethClient); | ||
+ | |||
+ | |||
+ | void setup() { | ||
+ | pinMode(CBASER0, OUTPUT); | ||
+ | pinMode(CBASEG0, OUTPUT); | ||
+ | pinMode(CBASEB0, OUTPUT); | ||
+ | pinMode(CBASER1, OUTPUT); | ||
+ | pinMode(CBASEG1, OUTPUT); | ||
+ | pinMode(CBASEB1, OUTPUT); | ||
+ | pinMode(CBASER2, OUTPUT); | ||
+ | pinMode(CBASEG2, OUTPUT); | ||
+ | pinMode(CBASEB2, OUTPUT); | ||
+ | |||
+ | Serial.begin(115200); | ||
+ | |||
+ | Serial.print("Ethernet starting."); | ||
+ | |||
+ | // Start Ethernet with the build in MAC Address | ||
+ | Ethernet.begin(0); | ||
+ | |||
+ | Serial.print("My IP address: "); | ||
+ | Serial.println(Ethernet.localIP()); | ||
+ | } | ||
+ | |||
+ | void doFade() { | ||
+ | while(true) { | ||
+ | if (brightness < 50) { | ||
+ | fadeAmount = 1; | ||
+ | brightness = 50; | ||
+ | return; | ||
+ | } | ||
+ | |||
+ | if (brightness >= 200) { | ||
+ | fadeAmount = -1; | ||
+ | } | ||
+ | |||
+ | // There was some problem with the upper-most LED stripe. | ||
+ | // That is why we just set this one to full brightness forever. | ||
+ | if(fadeCounter > 0) { | ||
+ | analogWrite(CBASER0, 0); | ||
+ | analogWrite(CBASEG0, 0); | ||
+ | analogWrite(CBASEB0, 255); | ||
+ | } | ||
+ | else { | ||
+ | analogWrite(CBASER0, 255); | ||
+ | analogWrite(CBASEG0, 0); | ||
+ | analogWrite(CBASEB0, 0); | ||
+ | } | ||
+ | |||
+ | // The rest of the wall is pulsing. | ||
+ | analogWrite(CBASER1, brightness); | ||
+ | analogWrite(CBASEG1, brightness); | ||
+ | analogWrite(CBASEB1, brightness); | ||
+ | analogWrite(CBASER2, brightness); | ||
+ | analogWrite(CBASEG2, brightness); | ||
+ | analogWrite(CBASEB2, brightness); | ||
+ | delay(10); | ||
+ | brightness = brightness + fadeAmount; | ||
+ | |||
+ | } | ||
+ | } | ||
+ | |||
+ | void loop() { | ||
+ | if (!client.connected()) { | ||
+ | Serial.println("Disconnected. Reconnecting...."); | ||
+ | if(!client.connect("c-info")) { | ||
+ | Serial.println("Connection failed"); | ||
+ | } else { | ||
+ | Serial.println("Connection success"); | ||
+ | if(client.subscribe("user/boarding")) { | ||
+ | Serial.println("Subscription 2 successfull"); | ||
+ | } | ||
+ | } | ||
+ | } | ||
+ | | ||
+ | client.loop(); | ||
+ | Serial.print("fadeCounter: "); | ||
+ | Serial.println(fadeCounter); | ||
+ | doFade(); | ||
+ | if (fadeCounter > 0) { | ||
+ | fadeCounter--; | ||
+ | } | ||
+ | delay(800); | ||
+ | } | ||
+ | </code> |