Simplified to core Arduino

Author: mkals

Arduino/arduino.py

@@ -12,7 +12,7 @@
 else:
     import glob
 
-libraryVersion = 'V0.5'
+libraryVersion = 'V0.6'
 
 log = logging.getLogger(__name__)
 
@@ -497,23 +497,6 @@ def dht(self, pin, module = 0):
             return None
 
 
-    def displayText(self, text, fontsize=1):
-        """
-            Sets a string of text to be displayed on the connected SSD1306
-                display. It sends the command 'dst' to the Arduino.
-
-            Inputs:
-                text: A string, containing the characters to be displayed.
-                fontsize: A single integer value, adjusts the size of the
-                    characters. Please only pass numbers between 1 and 9.
-        """
-
-        cmd_str = build_cmd_str("dst", (text, fontsize))
-        try:
-            self.sr.write(str.encode(cmd_str))
-            self.sr.flush()
-        except:
-            pass
 
 
 class Shrimp(Arduino):

README.md

@@ -46,7 +46,7 @@ build install` from the source directory to install this library.
 
 ## Setup:
 1. Verify that your Arduino board communicates at the baud rate specified in the
-`setup()` function (line 348) in `prototype.ino`. Change it there if necessary.
+`setup()` function (line 407) in `prototype.ino`. Change it there if necessary.
 2. Load the `prototype.ino` sketch onto your Arduino board, using the Arduino IDE.
 3. Set up some kind of serial I/O communication between the Arduino board and your computer (via physical USB cable,
 Bluetooth, xbee, etc. + associated drivers)
@@ -192,47 +192,6 @@ print(board.EEPROM.read(location))
 print('EEPROM size {size}'.format(size=board.EEPROM.size()))
 ```
 
-**Screen**
-Display text on an LCD screen.
-Use the function displayText(text, fontSize = 1) to display a string on the screen.
-
-**DHT**
-
-- `Arduino.dht(pin, module)` reads sensor values from the DHT sensor connected at the specified pin.
-
-Read data from DHT temperature and humidity sensors based on the
-Adafruit [DHT sensor library](https://github.com/adafruit/DHT-sensor-library).
-
-Pass as arguments the pin the sensor is connected to (as an integer) and the sensor type you are using as an integer (see list below).
-
-There are five sensors that work with this library:
-- 0 = DHT 11 (blue cage, less accurate)
-- 1 = DHT 12
-- 2 = DHT 21
-- 3 = DHT 22 (white cage)
-- 4 = AM2301
-
-The function returns an array of three elements:
-1. humidity (in %)
-2. temperature (in Celsius)
-3. heat index (in Celsius)
-
-If there is an error with the reading (e.g., the selected sensor is wrong) all values will return as zero.
-
-```python
-#DHT sensor example
-pin = 7
-sensorType = 0
-
-data = board.dht(pin, sensorType)
-[humidity, temperature, heatIndex] = data
-
-reply =  "Humidity = " + str(humidity) + " % \t"
-reply += "Temperature = " + str(temperature) + " ˙C \t"
-reply += "Heat Index = " + str(heatIndex) + " ˙C"
-
-print(reply)
-```
 
 **Misc**
 

setup.py

@@ -5,7 +5,7 @@
 
 setuptools.setup(
   name="arduino-python3",
-  version="0.5",
+  version="0.6",
   install_requires=['pyserial'],
   author="Morten Kals",
   author_email="morten@kals.no",

sketches/prototype/prototype.ino

@@ -1,20 +1,15 @@
 #include <SoftwareSerial.h>
 #include <Wire.h>
-//#include <Servo.h>
+#include <Servo.h>
 #include <EEPROM.h>
-#include <DHT.h>
-
-// NOTE: Requires new libraries for screens:
-#include <Adafruit_GFX.h>
-#include <Adafruit_SSD1306.h>
 
 void Version(){
-  Serial.println(F("V0.5"));
+  Serial.println(F("V0.6"));
 }
 
 
 SoftwareSerial *sserial = NULL;
-//Servo servos[8];
+Servo servos[8];
 int servo_pins[] = {0, 0, 0, 0, 0, 0, 0, 0};
 boolean connected = false;
 
@@ -253,59 +248,59 @@ void pulseInSHandler(String data){
 }
 
 void SV_add(String data) {
-//    String sdata[3];
-//    split(sdata,3,data,'%');
-//    int pin = Str2int(sdata[0]);
-//    int min = Str2int(sdata[1]);
-//    int max = Str2int(sdata[2]);
-//    int pos = -1;
-//    for (int i = 0; i<8;i++) {
-//        if (servo_pins[i] == pin) { //reset in place
-//            servos[pos].detach();
-//            servos[pos].attach(pin, min, max);
-//            servo_pins[pos] = pin;
-//            Serial.println(pos);
-//            return;
-//            }
-//        }
-//    for (int i = 0; i<8;i++) {
-//        if (servo_pins[i] == 0) {pos = i;break;} // find spot in servo array
-//        }
-//    if (pos == -1) {;} //no array position available!
-//    else {
-//        servos[pos].attach(pin, min, max);
-//        servo_pins[pos] = pin;
-//        Serial.println(pos);
-//        }
+    String sdata[3];
+    split(sdata,3,data,'%');
+    int pin = Str2int(sdata[0]);
+    int min = Str2int(sdata[1]);
+    int max = Str2int(sdata[2]);
+    int pos = -1;
+    for (int i = 0; i<8;i++) {
+        if (servo_pins[i] == pin) { //reset in place
+            servos[pos].detach();
+            servos[pos].attach(pin, min, max);
+            servo_pins[pos] = pin;
+            Serial.println(pos);
+            return;
+            }
+        }
+    for (int i = 0; i<8;i++) {
+        if (servo_pins[i] == 0) {pos = i;break;} // find spot in servo array
+        }
+    if (pos == -1) {;} //no array position available!
+    else {
+        servos[pos].attach(pin, min, max);
+        servo_pins[pos] = pin;
+        Serial.println(pos);
+        }
 }
 
 void SV_remove(String data) {
-//    int pos = Str2int(data);
-//    servos[pos].detach();
-//    servo_pins[pos] = 0;
+    int pos = Str2int(data);
+    servos[pos].detach();
+    servo_pins[pos] = 0;
 }
 
 void SV_read(String data) {
-//    int pos = Str2int(data);
-//    int angle;
-//    angle = servos[pos].read();
-//    Serial.println(angle);
+    int pos = Str2int(data);
+    int angle;
+    angle = servos[pos].read();
+    Serial.println(angle);
 }
 
 void SV_write(String data) {
-//    String sdata[2];
-//    split(sdata,2,data,'%');
-//    int pos = Str2int(sdata[0]);
-//    int angle = Str2int(sdata[1]);
-//    servos[pos].write(angle);
+    String sdata[2];
+    split(sdata,2,data,'%');
+    int pos = Str2int(sdata[0]);
+    int angle = Str2int(sdata[1]);
+    servos[pos].write(angle);
 }
 
 void SV_write_ms(String data) {
-//    String sdata[2];
-//    split(sdata,2,data,'%');
-//    int pos = Str2int(sdata[0]);
-//    int uS = Str2int(sdata[1]);
-//    servos[pos].writeMicroseconds(uS);
+    String sdata[2];
+    split(sdata,2,data,'%');
+    int pos = Str2int(sdata[0]);
+    int uS = Str2int(sdata[1]);
+    servos[pos].writeMicroseconds(uS);
 }
 
 void sizeEEPROM() {
@@ -322,88 +317,6 @@ void EEPROMHandler(int mode, String data) {
     }
 }
 
-int dhtSensorPin = -1;
-DHT dhtSensor(dhtSensorPin, DHT11);
-
-void dht(String data) {
-
-    String sdata[2];
-    split(sdata, 2, data, '%');
-    int dataPin = sdata[0].toInt();
-    int sensorNumber = sdata[1].toInt();
-
-    int sensorType = DHT11; // assume DHT11 as default
-    if (sensorNumber == 1) {
-      sensorType = DHT12;
-    } else if (sensorNumber == 2) {
-      sensorType = DHT21;
-    } else if (sensorNumber == 2) {
-      sensorType = DHT22;
-    } else if (sensorNumber == 2) {
-      sensorType = AM2301;
-    }
-
-    // do not initialize new sensor if we are reading repeatedly from same sensor
-    if (dataPin != dhtSensorPin) {
-        dhtSensorPin = dataPin;
-        dhtSensor = DHT(dataPin, sensorType);
-        dhtSensor.begin();
-    }
-
-    // Reading temperature or humidity takes about 250 milliseconds!
-    // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
-    float h = dhtSensor.readHumidity();
-    // Read temperature as Celsius (the default)
-    float t = dhtSensor.readTemperature();
-
-    if (isnan(h) || isnan(t)) {
-        Serial.println("0&0&0");
-        return;
-    }
-
-    float hic = dhtSensor.computeHeatIndex(t, h, false);
-    Serial.println(String(h) + "&" + String(t) + "&" + String(hic));
-}
-
-
-// TODO: Fix the stuttering problem being caused by the program calling the display parameter multiple times.
-
-// A large function to set up the display, clear it from previously, set a line(s) of text, and write it.
-// TODO: I was unable to break this apart into different functions to play around with in Python, due to issues with variable scope. I will come back to this.
-void displayText(String data) {
-
-  int screen_height = 32;
-  int screen_width = 128;
-
-  // The analog pin number connected to the reset pin of the screen (SDA).
-  int reset_pin = 4;
-
-  // Declaration for an SSD1306 display connected to I2C (SDA, SCL pins).
-  Adafruit_SSD1306 display(screen_width, screen_height, &Wire, 4);
-
-  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
-
-  // Clears previously displayed data and resets the cursor and text colour.
-  display.clearDisplay();
-  display.setCursor(0,0);
-  display.setTextColor(WHITE);
-
-  // The input data string contains the text to be written, along with %#,
-  // where # is the font size. This sets the font size by reading the last
-  // character of the input data (by default it is 1), and converting it
-  // to an int. Once that is done, the last two characters are deleted.
-  int font_size = data[data.length() - 1] - 48;
-  display.setTextSize(font_size);
-  data.remove(data.length() - 2);
-
-  display.print(data);
-
-  // Prints the above to the display. Relatively resource-intensive.
-  display.display();
-  delay(100);
-}
-
-// TODO: try a switch statement, might save memory.
 void SerialParser(void) {
   char readChar[64];
   Serial.readBytesUntil(33,readChar,64);
@@ -488,13 +401,6 @@ void SerialParser(void) {
   else if (cmd == "sz") {
       sizeEEPROM();
   }
-  else if (cmd == "dht") {
-      dht(data);
-  }
-  // screen display functions go here.
-  else if (cmd == "dst") {
-      displayText(data);
-  }
 }
 
 void setup()  {