Arduino, ESP and i2c devices - Cronologia

Renzo il 08:58, 27 giu 2016

2016-06-27T08:58:47Z

Mostra modifiche

Renzo: /* Testing */

2016-06-27T08:36:29Z

Testing

Renzo: /* Software */

2016-06-27T08:35:27Z

Software

Renzo: /* Testing */

2016-06-27T08:35:06Z

Testing

Renzo: /* Testing */

2016-06-27T08:22:08Z

Testing

Renzo: /* Testing */

2016-06-27T08:21:51Z

Testing

Renzo: /* Software */

2016-06-27T08:13:38Z

Software

Renzo: /* Software */

2016-06-27T08:12:01Z

Software

Renzo: /* Software */

2016-06-27T08:06:48Z

Software

Mostra modifiche

Renzo: /* Software */

2016-06-27T08:03:46Z

Software

@@ Riga 348: / Riga 348: @@
 It does not provide a DHCP server so too automagic connectivity tools like those running on smartphones and dumb operating systems
 may have troubles to connect.
-It you use linux you can get a connection. The Esp itself will get the address 192.168.4.1/24 so you should assing by hand another
+It you use linux you can get a connection. The Esp itself will get the address 192.168.4.1/24 so you should assign by hand another
 address on the same subnet (say 192.168.4.2/24) to your wlan interface.

@@ Riga 37: / Riga 37: @@
 const char *ssid = "ESPap";
-const char *password = "knife";
+const char *password = "forknife";
 WiFiServer server(23);

@@ Riga 344: / Riga 344: @@
 When this program is running, your ESP is a Wi-FI access point (you'll see it on your devices under the name, or ESSID, "ESPap".
-The password is "forknife".
+The password is "forknife".)
 It does not provide a DHCP server so too automagic connectivity tools like those running on smartphones and dumb operating systems

@@ Riga 354: / Riga 354: @@
 <pre>
 socat /dev/tty,rawer,escape=0x03 TCP:192.168.4.1:23
-<pre>
+</pre>
 * each line typed in will be shown on the display (when you type return)
 * crtl-E turns the display off (handled by the program on ESC).
 * crtl-C terinates the connection (socat parameter escape=0x03).

@@ Riga 340: / Riga 340: @@
 Load the program on you ESP. Remember that GP00 must be connected to ground at power-up to set the ESP in "flashing mode".
-Unplug GP00 otherwise at the next power cycle your ESP will be in "flashing mode" again.
+* each line typed in will be shown on the display (when you type return)
-If GP00 is unconnected, the program is restarted at power up.
+* crtl-E turns the display off (handled by the program on ESC).

@@ Riga 29: / Riga 29: @@
 === Software ===
-Here is the source code.
+Here is the source code. (I have left in the code several unused functions for the management of the display that can be useful in other applications.
 <source lang=C>
 #include <Wire.h>

@@ Riga 35: / Riga 35: @@
 const char *ssid = "ESPap";
-const char *password = "thereisnospoon";
+const char *password = "knife";
 WiFiServer server(23);
@@ Riga 144: / Riga 144: @@
 #define command(v) send((v),LOW);
 void lcd_clear (void)
+{
    command (LCD_CLEARDISPLAY);  // Clear display, set cursor position to zero.
@@ Riga 152: / Riga 150: @@
+}
-  void
+void lcd_home (void)
+{
    // Set cursor position to zero and undo any scrolling that is in effect.
@@ Riga 160: / Riga 157: @@
+}
-  void
+void lcd_set_cursor_position (uint8_t col, uint8_t row)
+{
    // If given an invalid row number, display on last line.
@@ Riga 174: / Riga 170: @@
+}
-  void
+void lcd_display_off (void)
+{
    displaycontrol_flags &= ~LCD_DISPLAYON;
@@ Riga 181: / Riga 176: @@
+}
-  void
+void lcd_display_on (void)
+{
    displaycontrol_flags |= LCD_DISPLAYON;
@@ Riga 188: / Riga 182: @@
+}
-  void
+void lcd_blinking_cursor_off (void)
+{
    displaycontrol_flags &= ~LCD_BLINKON;
@@ Riga 195: / Riga 188: @@
+}
-  void
+void lcd_blinking_cursor_on (void)
+{
    displaycontrol_flags |= LCD_BLINKON;
@@ Riga 202: / Riga 194: @@
+}
 void lcd_underline_cursor_off (void)
+{
    displaycontrol_flags &= ~LCD_CURSORON;
@@ Riga 210: / Riga 200: @@
+}
-  void
+void lcd_underline_cursor_on (void)
+{
    displaycontrol_flags |= LCD_CURSORON;
@@ Riga 217: / Riga 206: @@
+}
-void
+void lcd_scroll_left (void) {
    command (LCD_CURSORSHIFT | LCD_DISPLAYMOVE | LCD_MOVELEFT);
+}
-void
+void lcd_scroll_right (void) {
    command (LCD_CURSORSHIFT | LCD_DISPLAYMOVE | LCD_MOVERIGHT);
+}
-  size_t
+size_t lcd_write (char value)
+{
    send ((uint8_t) value, HIGH);
@@ Riga 234: / Riga 220: @@
+}
-  size_t
+size_t lcd_write_string (const char *buffer)
+{
    size_t size = strlen (buffer);
@@ Riga 242: / Riga 227: @@
      n += lcd_write ((uint8_t) (*buffer++));
+   }
    return n;
+}
-  int
+int lcd_printf (const char *format, ...)
+{
    char message_buffer[LCD_MAX_MESSAGE_LENGTH + 1];
@@ Riga 304: / Riga 287: @@
    command (LCD_ENTRYMODESET | entrymodeset_flags);
+}
 int nline=0;

@@ Riga 32: / Riga 32: @@
 <source lang=C>
-</pre>
+</source>
 === Testing ===