Adding Graphics, changing display

src/remote.cpp

@@ -3,22 +3,50 @@
 #include <Arduino.h>
 #include <esp_now.h>
 #include <WiFi.h>
-#include <SSD1306.h>
+#include <U8g2lib.h>
+#include <EEPROM.h> // ESP32 ?
 
 #include "mac_config.h"
 
+// Defining the type of display used (128x32)
+U8G2_SSD1306_128X64_NONAME_F_SW_I2C u8g2(U8G2_R2, /* clock=*/ 15, /* data=*/ 4, /* reset=*/ 16);
+// Defining variables for OLED display
+char displayBuffer[20];
+String displayString;
+short displayData = 0;
+unsigned long lastSignalBlink;
+unsigned long lastDataRotation;
+
+static unsigned char logo_bits[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7e, 0x00, 0x80, 0x3c, 0x01, 0xe0, 0x00, 0x07, 0x70, 0x18, 0x0e, 0x30, 0x18, 0x0c, 0x98, 0x99, 0x19, 0x80, 0xff, 0x01, 0x04, 0xc3, 0x20, 0x0c, 0x99, 0x30, 0xec, 0xa5, 0x37, 0xec, 0xa5, 0x37, 0x0c, 0x99, 0x30, 0x04, 0xc3, 0x20, 0x80, 0xff, 0x01, 0x98, 0x99, 0x19, 0x30, 0x18, 0x0c, 0x70, 0x18, 0x0e, 0xe0, 0x00, 0x07, 0x80, 0x3c, 0x01, 0x00, 0x7e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+
+static unsigned char signal_transmitting_bits[] = {
+  0x18, 0x00, 0x0c, 0x00, 0xc6, 0x00, 0x66, 0x00, 0x23, 0x06, 0x33, 0x0f,
+  0x33, 0x0f, 0x23, 0x06, 0x66, 0x00, 0xc6, 0x00, 0x0c, 0x00, 0x18, 0x00
+};
+
+static unsigned char signal_connected_bits[] = {
+  0x18, 0x00, 0x0c, 0x00, 0xc6, 0x00, 0x66, 0x00, 0x23, 0x06, 0x33, 0x09,
+  0x33, 0x09, 0x23, 0x06, 0x66, 0x00, 0xc6, 0x00, 0x0c, 0x00, 0x18, 0x00
+};
+
+static unsigned char signal_noconnection_bits[] = {
+  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x06, 0x00, 0x09,
+  0x00, 0x09, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
 // Global copy of slave
 esp_now_peer_info_t slave;
 #define CHANNEL 3
 #define PRINTSCANRESULTS 0
 #define DELETEBEFOREPAIR 0
-#define POT_MAX 3900
+#define HAL_MIN 1290
+#define HAL_MAX 2285
 #define TRIM_LOW 180
-#define TRIM_HIGH 31
+#define TRIM_HIGH 0
 
 //#define pairingMode
 #define leverPin 36
-SSD1306 display(0x3c, 4, 15);
+#define batteryMeasurePin 35
 
 // ESPNOW functions ##############################
 // Scan for slaves in AP mode
@@ -159,7 +187,7 @@ bool manageSlave() {
 
 // send data
 void sendData() {
-  uint8_t esc1 = map(analogRead(leverPin), 0, POT_MAX, TRIM_LOW, TRIM_HIGH);
+  uint8_t esc1 = map(analogRead(leverPin), HAL_MIN, HAL_MAX, TRIM_LOW, TRIM_HIGH);
   uint8_t esc2 = esc1;
 
   const uint8_t data[] = { esc1, esc2 }; // no mixture for the normal mode
@@ -194,6 +222,77 @@ void OnDataSent(const uint8_t *mac_addr, esp_now_send_status_t status) {
   Serial.print("Last Packet Sent to: "); Serial.println(macStr);
   Serial.print("Last Packet Send Status: "); Serial.println(status == ESP_NOW_SEND_SUCCESS ? "Delivery Success" : "Delivery Fail");
 }
+//############ End ESP Now
+
+// Return true if trigger is activated, false otherwice
+boolean triggerActive() {
+  if (digitalRead(triggerPin) == LOW)
+    return true;
+  else
+    return false;
+}
+
+// Function used to indicate the remotes battery level.
+int batteryLevel() {
+  float voltage = batteryVoltage();
+
+  if (voltage <= minVoltage) {
+    return 0;
+  } else if (voltage >= maxVoltage) {
+    return 100;
+  } else {
+    return (voltage - minVoltage) * 100 / (maxVoltage - minVoltage);
+  }
+}
+
+// Function to calculate and return the remotes battery voltage.
+float batteryVoltage() {
+  float batteryVoltage = 0.0;
+  int total = 0;
+
+  return 3.6; // for now always full
+
+  for (int i = 0; i < 10; i++) {
+    total += analogRead(batteryMeasurePin);
+  }
+
+  batteryVoltage = (refVoltage / 1024.0) * ((float)total / 10.0);
+
+  return batteryVoltage;
+}
+
+// DRAWING
+
+void updateMainDisplay() {
+
+  u8g2.firstPage();
+  do {
+
+    if (changeSettings == true) {
+      drawSettingsMenu();
+      drawSettingNumber();
+    } else {
+      drawThrottle();
+      drawPage();
+      drawBatteryLevel();
+      drawSignal();
+    }
+
+  } while ( u8g2.nextPage() );
+}
+
+void drawStartScreen() {
+  u8g2.firstPage();
+  do {
+    u8g2.drawXBM( 4, 4, 24, 24, logo_bits);
+
+    displayString = "Esk8 remote";
+    displayString.toCharArray(displayBuffer, 12);
+    u8g2.setFont(u8g2_font_helvR10_tr  );
+    u8g2.drawStr(34, 22, displayBuffer);
+  } while ( u8g2.nextPage() );
+  delay(1500);
+}
 
 void setup() {
   Serial.begin(115200);
@@ -208,12 +307,8 @@ void setup() {
   digitalWrite(16, HIGH);
   Serial.println("ESPNowSkate Sender");
 
-  display.init();
+  u8g2.begin();
-  display.flipScreenVertically();
+  drawStartScreen();
-  display.setFont(ArialMT_Plain_10);
-  display.setTextAlignment(TEXT_ALIGN_LEFT);
-  display.drawString(5, 5, "ESPNOW Test");
-  display.display();
 
   // This is the mac address of the Master in Station Mode
   Serial.print("STA MAC: "); Serial.println(WiFi.macAddress());
@@ -234,7 +329,7 @@ void setup() {
 
   // Retrieve Slave from config:
   for (int i = 0; i < 6; ++i ) {
-    slave.peer_addr[i] = (uint8_t) mac_reciever[i];
+    slave.peer_addr[i] = (uint8_t) mac_receiver[i];
   }
   slave.channel = CHANNEL; // pick a channel
   slave.encrypt = 0; // no encryption
@@ -242,11 +337,13 @@ void setup() {
 
 void loop() {
   char buf[10];
-  sprintf(buf, "%i", map(analogRead(leverPin), 0, POT_MAX, TRIM_LOW, TRIM_HIGH));
+  sprintf(buf, "%i", map(analogRead(leverPin), HAL_MIN, HAL_MAX, TRIM_LOW, TRIM_HIGH));
-  //Serial.println(analogRead(leverPin));
+  u8g2.firstPage();
-  display.clear();
+  do {
-  display.drawString(3, 0, buf);
+    u8g2.setFont(u8g2_font_10x20_tr );
-  display.display();
+    u8g2.drawStr(0, 20, buf);
+  } while ( u8g2.nextPage() );
+
 
   // If Slave is found, it would be populate in `slave` variable
   // We will check if `slave` is defined and then we proceed further