M09 D2.2 Fase 2-3
Fase 2. Led GPIO16 indicador de funcionament i Widget per upTime
Afegirem un widget per visualitzar l'upTime i intermitarem el built-in led del GPIO16 per indicar que el pocessador està en marxa.
Firmware:
| //emed-nodeMCU-2 |
| //28.12.2019 |
| //nodeMCU |
| //@rPrimTech Jaume Nogués |
| #define BLYNK_PRINT Serial |
| #include <ESP8266WiFi.h> |
| #include <BlynkSimpleEsp8266.h> |
| // You should get Auth Token in the Blynk App. |
| // Go to the Project Settings (nut icon). |
| char auth[] = "xxxxxxxxxxxxxxxxxxxxxxxxxx"; |
| // Your WiFi credentials. |
| // Set password to "" for open networks. |
| char ssid[] = "emed"; |
| char pass[] = "pitufito*"; |
| BlynkTimer timer; |
| void setup() |
| { |
| // Debug console |
| pinMode(16, OUTPUT); |
| Serial.begin(115200); |
| //Blynk.begin(auth, ssid, pass); |
| // You can also specify server: |
| //Blynk.begin(auth, ssid, pass, "elMeuServer.cat", 8080); |
| Blynk.begin(auth, ssid, pass, IPAddress(167,86,87,117), 8080); |
| timer.setInterval(1000L, intermita); |
| timer.setInterval(10000L, uptime); |
| } |
| void loop() |
| { |
| Blynk.run(); |
| timer.run(); |
| } |
| void intermita() |
| { |
| digitalWrite(16, !digitalRead(16)); |
| } |
| void uptime() |
| { |
| Blynk.virtualWrite(V0, millis() / 1000); |
| } |
Fase 3. Mesura de temperatura i humitat amb un sensor DHT11 o DHT22
Busca informació del funcionament dels sensors DHT11 i DHT22.
Instal·la la següent llibreria "a ma" per utilitzar-los.
Connecta un DHTXX mitjançant el GPIO10 i afegeix dos widgets, un per visualitzar el valor de temperatura i un altre per l'humitat.
Firmware:
|
//emed-nodeMCU-3 |
| //28.12.2019 |
| //nodeMCU |
| //@rPrimTech Jaume Nogués |
| #define BLYNK_PRINT Serial |
| #include <ESP8266WiFi.h> |
| #include <BlynkSimpleEsp8266.h> |
| #include <DHT11.h> |
| DHT11 sensor(10); |
| // You should get Auth Token in the Blynk App. |
| // Go to the Project Settings (nut icon). |
| char auth[] = "xxxxxxxxxxxxxxxxxxxxxxxxxxx"; |
| // Your WiFi credentials. |
| // Set password to "" for open networks. |
| char ssid[] = "emed"; |
| char pass[] = "pitufito*"; |
| BlynkTimer timer; |
| void setup() |
| { |
| // Debug console |
| pinMode(16, OUTPUT); |
| Serial.begin(115200); |
| Serial.println(" "); |
| //Blynk.begin(auth, ssid, pass); |
| // You can also specify server: |
| //Blynk.begin(auth, ssid, pass, "elMeuServer.cat", 8080); |
| Blynk.begin(auth, ssid, pass, IPAddress(167,86,87,117), 8080); |
| timer.setInterval(1000L, intermita); |
| timer.setInterval(10000L, uptime); |
| timer.setInterval(20000L, mesuraDHT); |
| } |
| void loop() |
| { |
| Blynk.run(); |
| timer.run(); |
| } |
| void intermita() |
| { |
| digitalWrite(16, !digitalRead(16)); |
| } |
| void uptime() |
| { |
| Blynk.virtualWrite(V0, millis() / 1000); |
| } |
| void mesuraDHT() |
| { |
| uint32_t res = sensor.leer(); |
| float t=sensor.temperatura_C(); |
| float h=sensor.humedad(); |
| Serial.print("Temperatura (C): "); |
| Serial.println(t); // temperatura en graus Celsius |
| Serial.print("Humitat: "); |
| Serial.println(h); // humitat en % |
| Blynk.virtualWrite(V1, t); |
| Blynk.virtualWrite(V2, h); |
| } |