Différences

Ci-dessous, les différences entre deux révisions de la page.

--- hardware:wsks:notes-install [2021/01/06 23:57] – yoann
+++ hardware:wsks:notes-install [2021/02/01 21:51] (Version actuelle) – modification externe 127.0.0.1
@@ Ligne 71: / Ligne 71: @@
+^ Devkit        ^ DHT11      |
+| D5 (GPIO14)   | out        |
+| G             | -          |
+| 3V            | +          |
+==== Code de test ====
+<code cpp testDHT11.ino>
+#define pin 14       // ESP8266-12E  D5 read emperature and Humidity data
+int temp = 0; //temperature
+int humi = 0; //humidity
+void readTemperatureHumidity();
+void uploadTemperatureHumidity();
+void setup() {
+  Serial.begin(115200);
+}
+void loop() {
+readTemperatureHumidity();
+delay(4000);
+}
+//read temperature humidity data
+void readTemperatureHumidity(){
+  int j;
+  unsigned int loopCnt;
+  int chr[40] = {0};
+  unsigned long time1;
+bgn:
+  delay(2000);
+  //Set interface mode 2 to: output
+  //Output low level 20ms (>18ms)
+  //Output high level 40μs
+  pinMode(pin, OUTPUT);
+  digitalWrite(pin, LOW);
+  delay(20);
+  digitalWrite(pin, HIGH);
+  delayMicroseconds(40);
+  digitalWrite(pin, LOW);
+  //Set interface mode 2: input
+  pinMode(pin, INPUT);
+  //High level response signal
+  loopCnt = 10000;
+  while (digitalRead(pin) != HIGH){
+    if (loopCnt-- == 0){
+      //If don't return to high level for a long time, output a prompt and start over
+      Serial.println("HIGH");
+      goto bgn;
+    }
+  }
+  //Low level response signal
+  loopCnt = 30000;
+  while (digitalRead(pin) != LOW){
+    if (loopCnt-- == 0){
+      //If don't return low for a long time, output a prompt and start over
+      Serial.println("LOW");
+      goto bgn;
+    }
+  }
+  //Start reading the value of bit1-40
+  for (int i = 0; i < 40; i++){
+    while (digitalRead(pin) == LOW){}
+    //When the high level occurs, write down the time "time"
+    time1 = micros();
+    while (digitalRead(pin) == HIGH){}
+    //When there is a low level, write down the time and subtract the time just saved
+    //If the value obtained is greater than 50μs, it is ‘1’, otherwise it is ‘0’
+    //And save it in an array
+    if (micros() - time1  > 50){
+      chr[i] = 1;
+    } else {
+      chr[i] = 0;
+    }
+  }
+  //Humidity, 8-bit bit, converted to a value
+  humi = chr[0] * 128 + chr[1] * 64 + chr[2] * 32 + chr[3] * 16 + chr[4] * 8 + chr[5] * 4 + chr[6] * 2 + chr[7];
+  //Temperature, 8-bit bit, converted to a value
+  temp = chr[16] * 128 + chr[17] * 64 + chr[18] * 32 + chr[19] * 16 + chr[20] * 8 + chr[21] * 4 + chr[22] * 2 + chr[23];
+    Serial.print("temp:");
+    Serial.print(temp);
+    Serial.print("    humi:");
+    Serial.println(humi);
+}
+</code>
 ==== Montage du capteur BMP185 ====
 SCL -> D1
 SDA -> D2
+===== Montage capteur de luminosité =====
+^ Devkit        ^ BH1750FVI  |
+| 3V            | VCC        |
+| D1            | SCL        |
+| D2            | SDA        |
+| G             | GND        |
+<code c test_BH1750FVI.ino>
+#include <Wire.h>
+const int Light_ADDR = 0b0100011;   // address:0x23
+int tempLight = 0;
+void readLight();
+void setup() {
+   Serial.begin(115200);
+  Wire.begin();
+  //initialize light sensor
+  Wire.beginTransmission(Light_ADDR);
+  Wire.write(0b00000001);
+  Wire.endTransmission();
+}
+void loop() {
+  readLight();
+  delay(5000);
+}
+void readLight(){
+  // reset
+  Wire.beginTransmission(Light_ADDR);
+  Wire.write(0b00000111);
+  Wire.endTransmission();
+  Wire.beginTransmission(Light_ADDR);
+  Wire.write(0b00100000);
+  Wire.endTransmission();
+  // typical read delay 120ms
+  delay(120);
+  Wire.requestFrom(Light_ADDR, 2); // 2byte every time
+  for (tempLight = 0; Wire.available() >= 1; ) {
+    char c = Wire.read();
+    tempLight = (tempLight << 8) + (c & 0xFF);
+  }
+  tempLight = tempLight / 1.2;
+  Serial.print("light: ");
+  Serial.println(tempLight);
+}
+</code>
+===== Montage de l'écran OLED =====
+^ DevKit  ^ OLED   |
+| 3V      | Vcc    |
+| G       | GND    |
+| D1      | SCL    |
+| D2      | SDA    |
 ===== Références =====

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