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

--- projets:atb:index [2021/03/04 01:32] – f1sls
+++ projets:atb:index [2021/03/04 02:06] (Version actuelle) – f1sls
@@ Ligne 1: / Ligne 1: @@
 ====== ATB : APRS TELEMETRY BOX ======
+{{:index_01.png?64|}}
+<catlist -forceHeadTitle -exclupage -sortAscending -hideNotFoundMsg -columns:1 -maxDepth:1 -noHead -noAddPageButton>
+----
 ===== AX.25 MODEM =====
@@ Ligne 7: / Ligne 11: @@
 ==== 4~20 mA CURRENT LOOP ====
-==== TEMPERATURE & HUMIDITY ====
-{{:projets:atb:ky-015_temperature_humidity_sensor_module-240x240.jpg?direct&100|}}
-=== CHARACTERISTICS ===
-  * Operating Voltage	3.3V to 5.5V
-  * Humidity measurement range	20% to 90% RH
-  * Humidity measurement accuracy	±5% RH
-  * Humidity measurement resolution	1% RH
-  * Temperature measurement range	0ºC to 50ºC [32ºF to 122ºF]
-  * Temperature measurement accuracy	±2ºC
-  * Temperature measurement resolution	1ºC
-  * Signal transmission range	20m
-=== ARDUINO WIRING ===
-{{:projets:atb:arduino_ky-015_keyes_temperature_humidity_sensor_module_connection_diagram.png?direct&400|}}
-=== CODE SAMPLE ===
-<code c>
-int DHpin = 8; // input/output pin
-byte dat[5];
-byte read_data()
-{
-  byte i = 0;
-  byte result = 0;
-  for (i = 0; i < 8; i++) {
-      while (digitalRead(DHpin) == LOW); // wait 50us
-      delayMicroseconds(30); //The duration of the high level is judged to determine whether the data is '0' or '1'
-      if (digitalRead(DHpin) == HIGH)
-        result |= (1 << (8 - i)); //High in the former, low in the post
-    while (digitalRead(DHpin) == HIGH); //Data '1', waiting for the next bit of reception
-    }
-  return result;
-}
-void start_test()
-{
-  digitalWrite(DHpin, LOW); //Pull down the bus to send the start signal
-  delay(30); //The delay is greater than 18 ms so that DHT 11 can detect the start signal
-  digitalWrite(DHpin, HIGH);
-  delayMicroseconds(40); //Wait for DHT11 to respond
-  pinMode(DHpin, INPUT);
-  while(digitalRead(DHpin) == HIGH);
-  delayMicroseconds(80); //The DHT11 responds by pulling the bus low for 80us;
-  if(digitalRead(DHpin) == LOW)
-    delayMicroseconds(80); //DHT11 pulled up after the bus 80us to start sending data;
-  for(int i = 0; i < 5; i++) //Receiving temperature and humidity data, check bits are not considered;
-    dat[i] = read_data();
-  pinMode(DHpin, OUTPUT);
-  digitalWrite(DHpin, HIGH); //After the completion of a release of data bus, waiting for the host to start the next signal
-}
-void setup()
-{
-  Serial.begin(9600);
-  pinMode(DHpin, OUTPUT);
-}
-void loop()
-{
-  start_test();
-  Serial.print("Humdity = ");
-  Serial.print(dat[0], DEC); //Displays the integer bits of humidity;
-  Serial.print('.');
-  Serial.print(dat[1], DEC); //Displays the decimal places of the humidity;
-  Serial.println('%');
-  Serial.print("Temperature = ");
-  Serial.print(dat[2], DEC); //Displays the integer bits of temperature;
-  Serial.print('.');
-  Serial.print(dat[3], DEC); //Displays the decimal places of the temperature;
-  Serial.println('C');
-  byte checksum = dat[0] + dat[1] + dat[2] + dat[3];
-  if (dat[4] != checksum)
-    Serial.println("-- Checksum Error!");
-  else
-    Serial.println("-- OK");
-  delay(1000);
-}
-</code>

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