Added internal MCP protection on first 9 pins, removed NTP from quotables

Author: gogi640

examples/Inkplate10/Advanced_Inkplate_Features/Inkplate_MCP23017_Expander/Inkplate_MCP23017_Expander.ino

@@ -9,15 +9,8 @@
    You will have to connect one side of 330 Ohm resistor to GPB7, than other side to anode of LED and finally, cathode
    pin of LED to GND.
 
-   This example will show you how you can manipulate with I/Os of MCP23017 Expander.
-   You can only manipulate with Port B of MCP23017 (GPB1-GPB7). Port A is used for epaper panel and TPS65186 PMIC.
-   GPB0 is used for ESP32 GPIO0 so you can't use it either.
-   GPB1 is used for enabling battery reading (if Batt solder bridge is bridged between second and third pad)
-   GPB2, GPB3 and GPB4 are used for reading touchpad (if Touchpad solder bridges are bridged between second pad and
-   third pad). If every thing is connected ok, after you upload code, LED should blink.
-
-   DANGER: DO NOT USE GPA0-GPA7 and GPB0. In code those are pins from 0-8!!! Using those, you might permanently damage
-   the screen. You should only use pins from 9-15.
+   This example will show you how you can manipulate with I/Os of external MCP23017 Expander.
+   On this expander all pins are free to use, nothing is connected by the default.
 
    Want to learn more about Inkplate? Visit www.inkplate.io
    Looking to get support? Write on our forums: http://forum.e-radionica.com/en/
@@ -36,18 +29,14 @@
 
 Inkplate display(INKPLATE_1BIT); // Create an object on Inkplate library and also set library into 1-bit mode (BW)
 
-// If your Inkplate doesn't have external (or second) MCP I/O expander, you should uncomment next line,
-// otherwise your code could hang out when you send code to your Inkplate.
-// You can easily check if your Inkplate has second MCP by turning it over and 
-// if there is missing chip near place where "MCP23017-2" is written, but if there is
-// chip soldered, you don't have to uncomment line and use external MCP I/O expander
-
 void setup()
 {
     display.begin(); // Init Inkplate library (you should call this function ONLY ONCE)
     display.pinModeMCP(
         LED_PIN,
-        OUTPUT); // Set pin 15 (or GPB7) to output. On that pin, we sholud connect LED with current limiting resistor
+        OUTPUT);  // Set pin 15 (or GPB7) to output. On that pin, we sholud connect LED with current limiting resistor
+                 // If we do not specify which MCP we want to use, by the default external MCP will be used of the one
+                 // with header named MCP23017-2
 }
 
 void loop()

examples/Inkplate10/Advanced_Inkplate_Features/Inkplate_MCP23017_Internal_Expander/Inkplate_MCP23017_Internal_Expander.ino

@@ -0,0 +1,54 @@
+/*
+   Inkplate_MCP23017 example for e-radionica.com Inkplate 10
+   For this example you will need only a micro USB cable, Inkplate10, 330 Ohm resistor and LED diode.
+   Select "Inkplate 10(ESP32)" from Tools -> Board menu.
+   Don't have "Inkplate 10(ESP32)" option? Follow our tutorial and add it:
+   https://e-radionica.com/en/blog/add-inkplate-6-to-arduino-ide/
+
+   Connect resistor to GPB7 pin on MCP23017 header at bottom right corner on the backside (component side) of Inkplate.
+   You will have to connect one side of 330 Ohm resistor to GPB7, than other side to anode of LED and finally, cathode
+   pin of LED to GND.
+
+   This example will show you how you can manipulate with I/Os of internal MCP23017 Expander.
+   You can only manipulate with Port B of MCP23017 (GPB1-GPB7). Port A is used for epaper panel and TPS65186 PMIC.
+   GPB0 is used for ESP32 GPIO0 so you can't use it either.
+   GPB1 is used for enabling battery reading (if Batt solder bridge is bridged between second and third pad)
+   GPB2, GPB3 and GPB4 are used for reading touchpad (if Touchpad solder bridges are bridged between second pad and
+   third pad). If every thing is connected ok, after you upload code, LED should blink.
+
+   DANGER: DO NOT USE GPA0-GPA7 and GPB0. In code those are pins from 0-8!!! Using those, you might permanently damage
+   the screen. You should only use pins from 9-15.
+
+   Want to learn more about Inkplate? Visit www.inkplate.io
+   Looking to get support? Write on our forums: http://forum.e-radionica.com/en/
+   19 May 2022 by Soldered.com
+*/
+
+// Next 3 lines are a precaution, you can ignore those, and the example would also work without them
+#ifndef ARDUINO_INKPLATE10
+#error "Wrong board selection for this example, please select Inkplate 10 in the boards menu."
+#endif
+
+#include "Inkplate.h" //Include Inkplate library to the sketch
+
+#define LED_PIN MCP23017_PIN_B7 // We are going to use pin GPB7 (remember! GPA0 = 0, GPA1 = 1, ..., GPA7 = 7, GPB0 = 8, GBP1 = 9, ..., GPB7 =
+       // 15)
+
+Inkplate display(INKPLATE_1BIT); // Create an object on Inkplate library and also set library into 1-bit mode (BW)
+
+void setup()
+{
+    display.begin(); // Init Inkplate library (you should call this function ONLY ONCE)
+    display.pinModeMCP(
+        LED_PIN,
+        OUTPUT, MCP23017_INT_ADDR); // Set pin 15 (or GPB7) to output. On that pin, we sholud connect LED with current limiting resistor
+                                    // and specify that we want use internal MCP or MCP with header named MCP23017-1
+}
+
+void loop()
+{
+    display.digitalWriteMCP(LED_PIN, LOW, MCP23017_INT_ADDR);  // Set output to low (LED does not light up)
+    delay(1000);                            // Wait for one second
+    display.digitalWriteMCP(LED_PIN, HIGH, MCP23017_INT_ADDR); // Set output to high (LED lights up)
+    delay(1000);                            // Wait for one second
+}

examples/Inkplate10/Projects/Quotables_Example/Network.cpp

@@ -62,30 +62,6 @@ void Network::begin()
     setTime();
 }
 
-// Gets time from ntp server
-void Network::getTime(char *timeStr)
-{
-    // Get seconds since 1.1.1970.
-    time_t nowSecs = time(nullptr);
-
-    // Used to store time
-    struct tm timeinfo;
-    gmtime_r(&nowSecs, &timeinfo);
-
-    // Copies time string into timeStr
-    strncpy(timeStr, asctime(&timeinfo) + 4, 12);
-
-    // Setting time string timezone
-    int hr = 10 * timeStr[7] + timeStr[8] + timeZone;
-
-    // Better defined modulo, in case timezone makes hours to go below 0
-    hr = (hr % 24 + 24) % 24;
-
-    // Adding time to '0' char makes it into whatever time char, for both digits
-    timeStr[7] = hr / 10 + '0';
-    timeStr[8] = hr % 10 + '0';
-}
-
 bool Network::getData(char* text, char* auth)
 {
     bool f = 0;
@@ -189,29 +165,3 @@ bool Network::getData(char* text, char* auth)
 
     return !f;
 }
-
-// Function for initial time setting ovet the ntp server
-void Network::setTime()
-{
-    // Used for setting correct time
-    configTime(0, 0, "pool.ntp.org", "time.nist.gov");
-
-    Serial.print(F("Waiting for NTP time sync: "));
-    time_t nowSecs = time(nullptr);
-    while (nowSecs < 8 * 3600 * 2)
-    {
-        delay(500);
-        Serial.print(F("."));
-        yield();
-        nowSecs = time(nullptr);
-    }
-
-    Serial.println();
-
-    // Used to store time info
-    struct tm timeinfo;
-    gmtime_r(&nowSecs, &timeinfo);
-
-    Serial.print(F("Current time: "));
-    Serial.print(asctime(&timeinfo));
-}

examples/Inkplate10/Projects/Quotables_Example/Network.h

@@ -45,12 +45,10 @@ class Network
   public:
     // Functions we can access in main file
     void begin();
-    void getTime(char *timeStr);
     bool getData(char* text, char* auth);
 
   private:
     // Functions called from within our class
-    void setTime();
 };
 
 #endif

examples/Inkplate5/Advanced_Inkplate_Features/Inkplate_MCP23017_Expander/Inkplate_MCP23017_Expander.ino

@@ -9,15 +9,8 @@
    You will have to connect one side of 330 Ohm resistor to GPB7, than other side to anode of LED and finally, cathode
    pin of LED to GND.
 
-   This example will show you how you can manipulate with I/Os of MCP23017 Expander.
-   You can only manipulate with Port B of MCP23017 (GPB1-GPB7). Port A is used for epaper panel and TPS65186 PMIC.
-   GPB0 is used for ESP32 GPIO0 so you can't use it either.
-   GPB1 is used for enabling battery reading (if Batt solder bridge is bridged between second and third pad)
-   GPB2, GPB3 and GPB4 are used for reading touchpad (if Touchpad solder bridges are bridged between second pad and
-   third pad). If every thing is connected ok, after you upload code, LED should blink.
-
-   DANGER: DO NOT USE GPA0-GPA7 and GPB0. In code those are pins from 0-8!!! Using those, you might permanently damage
-   the screen. You should only use pins from 9-15.
+   This example will show you how you can manipulate with I/Os of external MCP23017 Expander.
+   On this expander all pins are free to use, nothing is connected by the default.
 
    Want to learn more about Inkplate? Visit www.inkplate.io
    Looking to get support? Write on our forums: http://forum.e-radionica.com/en/
@@ -42,6 +35,8 @@ void setup()
     display.pinModeMCP(
         LED_PIN,
         OUTPUT); // Set pin 15 (or GPB7) to output. On that pin, we sholud connect LED with current limiting resistor
+                 // If we do not specify which MCP we want to use, by the default external MCP will be used of the one
+                 // with header named MCP23017-2
 }
 
 void loop()

examples/Inkplate5/Advanced_Inkplate_Features/Inkplate_MCP23017_Internal_Expander/Inkplate_MCP23017_Internal_Expander.ino

@@ -0,0 +1,54 @@
+/*
+   Inkplate_MCP23017 example for e-radionica.com Inkplate 5
+   For this example you will need only a micro USB cable, Inkplate5, 330 Ohm resistor and LED diode.
+   Select "Inkplate 5(ESP32)" from Tools -> Board menu.
+   Don't have "Inkplate 5(ESP32)" option? Follow our tutorial and add it:
+   https://e-radionica.com/en/blog/add-inkplate-6-to-arduino-ide/
+
+   Connect resistor to GPB7 pin on MCP23017 header at bottom right corner on the backside (component side) of Inkplate.
+   You will have to connect one side of 330 Ohm resistor to GPB7, than other side to anode of LED and finally, cathode
+   pin of LED to GND.
+
+   This example will show you how you can manipulate with I/Os of internal MCP23017 Expander.
+   You can only manipulate with Port B of MCP23017 (GPB1-GPB7). Port A is used for epaper panel and TPS65186 PMIC.
+   GPB0 is used for ESP32 GPIO0 so you can't use it either.
+   GPB1 is used for enabling battery reading (if Batt solder bridge is bridged between second and third pad)
+   GPB2, GPB3 and GPB4 are used for reading touchpad (if Touchpad solder bridges are bridged between second pad and
+   third pad). If every thing is connected ok, after you upload code, LED should blink.
+
+   DANGER: DO NOT USE GPA0-GPA7 and GPB0. In code those are pins from 0-8!!! Using those, you might permanently damage
+   the screen. You should only use pins from 9-15.
+
+   Want to learn more about Inkplate? Visit www.inkplate.io
+   Looking to get support? Write on our forums: http://forum.e-radionica.com/en/
+   19 May 2022 by Soldered.com
+*/
+
+// Next 3 lines are a precaution, you can ignore those, and the example would also work without them
+#ifndef ARDUINO_INKPLATE5
+#error "Wrong board selection for this example, please select Inkplate 5 in the boards menu."
+#endif
+
+#include "Inkplate.h" //Include Inkplate library to the sketch
+
+#define LED_PIN MCP23017_PIN_B7 // We are going to use pin GPB7 (remember! GPA0 = 0, GPA1 = 1, ..., GPA7 = 7, GPB0 = 8, GBP1 = 9, ..., GPB7 =
+       // 15)
+
+Inkplate display(INKPLATE_1BIT); // Create an object on Inkplate library and also set library into 1-bit mode (BW)
+
+void setup()
+{
+    display.begin(); // Init Inkplate library (you should call this function ONLY ONCE)
+    display.pinModeMCP(
+        LED_PIN,
+        OUTPUT, MCP23017_INT_ADDR); // Set pin 15 (or GPB7) to output. On that pin, we sholud connect LED with current limiting resistor
+                                    // and specify that we want use internal MCP or MCP with header named MCP23017-1
+}
+
+void loop()
+{
+    display.digitalWriteMCP(LED_PIN, LOW, MCP23017_INT_ADDR);  // Set output to low (LED does not light up)
+    delay(1000);                            // Wait for one second
+    display.digitalWriteMCP(LED_PIN, HIGH, MCP23017_INT_ADDR); // Set output to high (LED lights up)
+    delay(1000);                            // Wait for one second
+}

examples/Inkplate6/Advanced_Inkplate_Features/Inkplate_MCP23017_Expander/Inkplate_MCP23017_Expander.ino

@@ -8,16 +8,9 @@
    Connect resistor to GPB7 pin on MCP23017 header at bottom right corner on the backside (component side) of Inkplate.
    You will have to connect one side of 330 Ohm resistor to GPB7, than other side to anode of LED and finally, cathode
    pin of LED to GND.
-
-   This example will show you how you can manipulate with I/Os of MCP23017 Expander.
-   You can only manipulate with Port B of MCP23017 (GPB1-GPB7). Port A is used for epaper panel and TPS65186 PMIC.
-   GPB0 is used for ESP32 GPIO0 so you can't use it either.
-   GPB1 is used for enabling battery reading (if Batt solder bridge is bridged between second and third pad)
-   GPB2, GPB3 and GPB4 are used for reading touchpad (if Touchpad solder bridges are bridged between second pad and
-   third pad). If every thing is connected ok, after you upload code, LED should blink.
-
-   DANGER: DO NOT USE GPA0-GPA7 and GPB0. In code those are pins from 0-8!!! Using those, you might permanently damage
-   the screen. You should only use pins from 9-15.
+   
+   This example will show you how you can manipulate with I/Os of external MCP23017 Expander.
+   On this expander all pins are free to use, nothing is connected by the default.
 
    Want to learn more about Inkplate? Visit www.inkplate.io
    Looking to get support? Write on our forums: http://forum.e-radionica.com/en/
@@ -44,6 +37,8 @@ void setup()
     display.pinModeMCP(
         LED_PIN,
         OUTPUT); // Set pin 15 (or GPB7) to output. On that pin, we sholud connect LED with current limiting resistor
+                 // If we do not specify which MCP we want to use, by the default external MCP will be used of the one
+                 // with header named MCP23017-2
 }
 
 void loop()

examples/Inkplate6/Advanced_Inkplate_Features/Inkplate_MCP23017_Internal_Expander/Inkplate_MCP23017_Internal_Expander.ino

@@ -0,0 +1,54 @@
+/*
+   Inkplate_MCP23017 example for e-radionica.com Inkplate 6
+   For this example you will need only a micro USB cable, Inkplate6, 330 Ohm resistor and LED diode.
+   Select "Inkplate 6(ESP32)" from Tools -> Board menu.
+   Don't have "Inkplate 6(ESP32)" option? Follow our tutorial and add it:
+   https://e-radionica.com/en/blog/add-inkplate-6-to-arduino-ide/
+
+   Connect resistor to GPB7 pin on MCP23017 header at bottom right corner on the backside (component side) of Inkplate.
+   You will have to connect one side of 330 Ohm resistor to GPB7, than other side to anode of LED and finally, cathode
+   pin of LED to GND.
+
+   This example will show you how you can manipulate with I/Os of internal MCP23017 Expander.
+   You can only manipulate with Port B of MCP23017 (GPB1-GPB7). Port A is used for epaper panel and TPS65186 PMIC.
+   GPB0 is used for ESP32 GPIO0 so you can't use it either.
+   GPB1 is used for enabling battery reading (if Batt solder bridge is bridged between second and third pad)
+   GPB2, GPB3 and GPB4 are used for reading touchpad (if Touchpad solder bridges are bridged between second pad and
+   third pad). If every thing is connected ok, after you upload code, LED should blink.
+
+   DANGER: DO NOT USE GPA0-GPA7 and GPB0. In code those are pins from 0-8!!! Using those, you might permanently damage
+   the screen. You should only use pins from 9-15.
+
+   Want to learn more about Inkplate? Visit www.inkplate.io
+   Looking to get support? Write on our forums: http://forum.e-radionica.com/en/
+   19 May 2022 by Soldered.com
+*/
+
+// Next 3 lines are a precaution, you can ignore those, and the example would also work without them
+#ifndef ARDUINO_ESP32_DEV
+#error "Wrong board selection for this example, please select Inkplate 6 in the boards menu."
+#endif
+
+#include "Inkplate.h" //Include Inkplate library to the sketch
+
+#define LED_PIN MCP23017_PIN_B7 // We are going to use pin GPB7 (remember! GPA0 = 0, GPA1 = 1, ..., GPA7 = 7, GPB0 = 8, GBP1 = 9, ..., GPB7 =
+       // 15)
+
+Inkplate display(INKPLATE_1BIT); // Create an object on Inkplate library and also set library into 1-bit mode (BW)
+
+void setup()
+{
+    display.begin(); // Init Inkplate library (you should call this function ONLY ONCE)
+    display.pinModeMCP(
+        LED_PIN,
+        OUTPUT, MCP23017_INT_ADDR); // Set pin 15 (or GPB7) to output. On that pin, we sholud connect LED with current limiting resistor
+                                    // and specify that we want use internal MCP or MCP with header named MCP23017-1
+}
+
+void loop()
+{
+    display.digitalWriteMCP(LED_PIN, LOW, MCP23017_INT_ADDR);  // Set output to low (LED does not light up)
+    delay(1000);                            // Wait for one second
+    display.digitalWriteMCP(LED_PIN, HIGH, MCP23017_INT_ADDR); // Set output to high (LED lights up)
+    delay(1000);                            // Wait for one second
+}