add signal strength meter

Makefile

@@ -1,3 +1,4 @@
+#BOARD :=	featheresp32
 BOARD :=	sparkfun_esp32micromod
 FIRMWARE :=	.pioenvs/$(BOARD)/firmware.bin
 SOURCES :=					\

include/Config.h

@@ -2,7 +2,7 @@
 #define KIMODEM_PREFS_H
 
 
-namespace config {
+namespace Config {
 
 // Networking
 
@@ -14,6 +14,11 @@ void 	 SetStartTryConnecting(bool opt);
 
 
 // Misc.
+bool	EnableMeter();
+void	SetEnableMeter(bool opt);
+
+
+// Misc. control
 void 	 FactoryDefaults();
 
 }

include/Display.h

@@ -6,29 +6,20 @@
 
 #define ANSI_CLEAR_SCREEN	"\33[2J"
 
-/*
-class Display {
-public:
-	Display();
+namespace Display {
 
-	void	Clear();
-	void	Draw();
-	bool	HasDisplay();
+void	Init();
+void	Clear();
+void	Clear(bool hint);
+void	Draw();
+bool	HasDisplay();
 
-	void	Print(const char *);
-	void	Println(const char *);
-	void	SetCursor(int16_t x, int16_t y);
-};
-*/
-
-#if defined(ADAFRUIT_OLED)
-#include "internal/DisplayAdafruitOLED.h"
-#else
-#include "internal/DisplayNone.h"
-#endif
+void	Print(const char *);
+void	Println(const char *);
+void	SetCursor(int16_t x, int16_t y);
 
 
-static Display	display;
+} // namespace Display
 
 
 #endif

include/WiFiMeter.h

@@ -0,0 +1,20 @@
+#ifndef KIMODEM_WIFI_METER_H
+#define KIMODEM_WIFI_METER_H
+
+#include <Arduino.h>
+
+
+namespace Meter {
+
+
+void	Begin();
+void	Enable();
+void	Disable();
+void	Update();
+
+
+}
+
+
+
+#endif

include/WiFiMgr.h

@@ -10,6 +10,7 @@ bool	SetupWiFi();
 bool	Autoconnect(Dictionary &pb);
 bool	Autoconnect(Dictionary &pb, bool reset);
 bool	TryConnect(Dictionary &pb);
+void	WiFiRefresh(Dictionary &pb);
 
 
 #endif

include/internal/DisplayAdafruitOLED.h

@@ -1,26 +0,0 @@
-#ifndef KIMODEM_ADAFRUIT_OLED_H
-#define KIMODEM_ADAFRUIT_OLED_H
-
-#include <Arduino.h>
-#include <SPI.h>
-#include <Wire.h>
-#include <Adafruit_SSD1306.h>
-
-class Display {
-public:
-	Display();
-
-	void	Clear();
-	void	Draw();
-	bool	HasDisplay();
-
-	void	Print(const char *);
-	void	Println(const char *);
-	void	SetCursor(int16_t x, int16_t y);
-private:
-	Adafruit_SSD1306	oled;
-};
-
-
-
-#endif

include/internal/DisplayNone.h

@@ -1,20 +0,0 @@
-#ifndef KIMODEM_DISPLAY_SERIAL
-#define KIMODEM_DISPLAY_SERIAL
-
-#include <Arduino.h>
-
-
-class Display {
-public:
-	Display() {};
-
-	void	Clear();
-	void	Draw();
-	bool	HasDisplay();
-
-	void	Print(const char *);
-	void	Println(const char *);
-	void	SetCursor(int16_t x, int16_t y);
-};
-
-#endif

platformio.ini

@@ -13,6 +13,8 @@ framework = arduino
 platform = espressif32
 monitor_speed = 115200
 extra_scripts = scripts/download_fs.py
+monitor_filters =
+  esp32_exception_decoder
 
 [env:featheresp32]
 board = featheresp32
@@ -27,7 +29,13 @@ lib_deps =
 board = sparkfun_esp32micromod
 build_flags =
   -DSPARKFUN_HYPERDISPLAY
-  -DDISPLAY_NONE
+  -DAPA102_ENABLED
+
+lib_deps =
+  sparkfun/SparkFun HyperDisplay@^2.0.1
+  sparkfun/SparkFun HyperDisplay ILI9341@^1.0.0
+  sparkfun/SparkFun HyperDisplay 4DLCD-320240@^1.0.0
+  pololu/APA102@^3.0.0
 
 [env:d1mini]
 board = wemos_d1_mini32

src/Config.cc

@@ -1,8 +1,9 @@
 #include <Preferences.h>
-#include "prefs.h"
+
+#include "Config.h"
 
 
-namespace config {
+namespace Config {
 
 
 static bool		isLoaded = false;
@@ -61,6 +62,22 @@ SetStartTryConnecting(bool opt)
 }
 
 
+bool
+EnableMeter()
+{
+	checkReady();
+	return preferences.getBool("WCM", true);
+}
+
+
+void
+SetEnableMeter(bool opt)
+{
+	checkReady();
+	preferences.putBool("WCM", opt);
+}
+
+
 void
 FactoryDefaults()
 {

src/DisplayAdafruitOLED.cc

@@ -5,64 +5,84 @@
 #include <Adafruit_GFX.h>
 #include <Adafruit_SSD1306.h>
 
-#include "internal/DisplayAdafruitOLED.h"
+#include "Display.h"
 
 
+namespace Display {
+
 static Adafruit_SSD1306	oled(SSD1306_SWITCHCAPVCC, 0x3C);
 
 
-
-Display::Display()
-	: oled(oled)
+void
+Init()
 {
-	Serial.println("initialized display");
+	oled.begin(SSD1306_SWITCHCAPVCC, 0x3C);
+	oled.display();
+	oled.clearDisplay();
 	oled.setTextSize(1);
-	oled.setTextColor(SSD1306_WHITE);
+	oled.setTextColor(WHITE);
+	oled.fillScreen(BLACK);
+	oled.display();
+	Serial.println("DISP INIT");
 }
 
 
 void
-Display::Clear()
+Clear()
 {
-	this->oled.clearDisplay();
-	this->SetCursor(0, 0);
-	this->Draw();
+	Clear(false);
 }
 
 	
 void
-Display::Draw()
+Clear(bool hint)
 {
-	this->oled.display();
+	oled.clearDisplay();
+	SetCursor(0, 0);
+	oled.display();
+}
+
+
+void
+Draw()
+{
+	oled.display();
 }
 
 
 bool
-Display::HasDisplay()
+HasDisplay()
 {
 	return true;
 }
 
 
 void
-Display::Print(const char *s)
+Print(const char *s)
 {
-	this->oled.print(s);
+	oled.print(s);
+	Serial.print(s);
+	oled.display();
 }
 
 
 void
-Display::Println(const char *s)
+Println(const char *s)
 {
-	this->oled.println(s);
+	oled.println(s);
+	Serial.println(s);
+	oled.display();
 }
 
 
 void
-Display::SetCursor(int16_t x, int16_t y)
+SetCursor(int16_t x, int16_t y)
 {
-	this->oled.setCursor(x, y);
+	oled.setCursor(x, y);
 }
 
 
+} // namespace Display
+
+
 #endif

src/DisplaySFHyperdisplay.cc

@@ -0,0 +1,88 @@
+#if defined(SPARKFUN_HYPERDISPLAY)
+
+#include <Arduino.h>
+#include <HyperDisplay_4DLCD-320240_4WSPI.h>
+#include "Display.h"
+
+
+namespace Display {
+
+
+static LCD320240_4WSPI		tft;
+static ILI9341_color_18_t	defaultColor;
+static uint16_t			line = 0;
+
+
+void	
+Init()
+{
+	tft.begin(D1, D0, PWM0, SPI, 32000000);
+	tft.setInterfacePixelFormat(ILI9341_PXLFMT_18);
+	tft.clearDisplay();
+
+	defaultColor = tft.rgbTo18b(255, 255, 255); 
+	tft.setCurrentWindowColorSequence((color_t)&defaultColor);
+}
+
+
+void
+Clear()
+{
+	Clear(false);
+}
+
+
+void
+Clear(bool hint)
+{
+	if (hint) {
+		return;
+	}
+	tft.clearDisplay();
+	SetCursor(0, 0);
+	line = 0;
+}
+
+
+void
+Draw()
+{
+
+}
+
+
+bool
+HasDisplay()
+{
+	return true;
+}
+
+
+void
+Print(const char *s)
+{
+	tft.print(s);
+	Serial.print(s);
+}
+
+
+void
+Println(const char *s)
+{
+	tft.println(s);
+	Serial.println(s);
+	line++;
+	SetCursor(0, line*10);
+}
+
+
+void
+SetCursor(int16_t x, int16_t y)
+{
+	tft.setTextCursor(x, y);
+}
+
+
+} // namespace Display
+
+#endif

src/WiFiMeter.cc

@@ -0,0 +1,132 @@
+#include <Arduino.h>
+#include <WiFi.h>
+
+#include "Config.h"
+#include "WiFiMeter.h"
+
+namespace Meter {
+
+static bool	enabled = false;
+
+#if defined(APA102_ENABLED)
+
+#include <APA102.h>
+
+constexpr uint8_t	APA102_DATA = 25;
+constexpr uint8_t	APA102_CLOCK = 15;
+constexpr uint8_t	APA102_COUNT = 6;
+constexpr uint8_t	APA102_BRIGHTNESS = 5;
+
+
+APA102<APA102_DATA, APA102_CLOCK>	ledBar;
+
+
+static void
+setLED(uint8_t brightness)
+{
+	brightness = brightness & 0x1f;
+
+	ledBar.sendColor(0, 0, 255, brightness);
+}
+
+
+static void
+clearBar()
+{
+	ledBar.startFrame();
+	for (int i = 0; i < APA102_COUNT; i++) {
+		setLED(0);
+	}
+	ledBar.endFrame(APA102_COUNT);
+}
+
+
+static void
+setLedCount(uint8_t on)
+{
+	ledBar.startFrame();
+
+	for (int i = 0; i < APA102_COUNT; i++) {
+		if (i >= on) {
+			setLED(0);
+		} else {
+			setLED(APA102_BRIGHTNESS);
+		}
+	}
+
+	ledBar.endFrame(APA102_CLOCK);
+}
+
+
+void
+Begin()
+{
+	enabled = Config::EnableMeter();	
+}
+
+
+void
+Enable()
+{
+	enabled = true;
+	Config::SetEnableMeter(true);
+}
+
+
+void
+Disable()
+{
+	enabled = false;
+	Config::SetEnableMeter(false);
+}
+
+
+void
+Update()
+{
+	if (!enabled) {
+		return;
+	}
+
+	int8_t	rssi;
+	uint8_t	count = 0;
+
+	if (WiFi.status() != WL_CONNECTED) {
+		rssi = -127;
+	} else {
+		rssi = WiFi.RSSI();
+	}
+
+
+	if (rssi >= -30) {
+		count = 6;
+	} else if (rssi >= -55) {
+		count = 5;
+	} else if (rssi >= -67) {
+		count = 4;
+	} else if (rssi >= -70) {
+		count = 3;
+	} else if (rssi >= -80) {
+		count = 2;
+	} else if (rssi >= -90) {
+		count = 1;
+	} else {
+		count = 0;
+	}
+
+	setLedCount(count);
+}
+
+
+
+#else
+
+void	Begin()		{}
+void	Enable()	{}
+void	Disable()	{}
+void	Update()	{}
+
+
+#endif
+
+}

src/WiFiMgr.cc

@@ -2,10 +2,11 @@
 #include <WiFi.h>
 #include <string.h>
 
+#include "Config.h"
 #include "Dictionary.h"
 #include "Display.h"
+#include "WiFiMeter.h"
 #include "TLV.h"
-#include "prefs.h"
 
 #include "WiFiMgr.h"
 
@@ -14,6 +15,10 @@
 #define CONN_WAIT	250
 
 
+static TLV::Record	ssidrec;
+static TLV::Record	wpakeyrec;
+
+
 bool
 SetupWiFi()
 {
@@ -27,32 +32,30 @@ tryConnect(const char *ssid, const char *wpakey)
 {
 	size_t		 waitedFor = 0;
 
-	Serial.print("CONNECT ");
-	Serial.println(ssid);
+	Display::Print("CONNECT ");
+	Display::Println(ssid);
 	WiFi.begin(ssid, wpakey);
 	while ((WiFi.status() != WL_CONNECTED) && (waitedFor < MAX_WAIT)) {
 		waitedFor += CONN_WAIT;
 		if ((waitedFor % 1000) == 0) {
-			Serial.print(".");
+			Display::Print(".");
 		}
 		delay(250);
 	}
 
 	if (WiFi.status() == WL_CONNECTED) {
-		Serial.print("MODEM ADDR ");
-		Serial.println(WiFi.localIP());
+		Display::Clear(true);
+		Display::Print("SSID: ");
+		Display::Println(ssid);
+		Display::Print("IP: ");
+		Display::Println(WiFi.localIP().toString().c_str());
 
-		display.Clear();
-		display.Print("SSID: ");
-		display.Println(ssid);
-		display.Print("IP: ");
-		display.Println(WiFi.localIP().toString().c_str());
-		display.Draw();
+		Config::SetLastSSID(ssid);
 
 		return true;
 	}
 
-	Serial.println("CARRIER SIGNAL LOST");
+	Display::Println("CARRIER SIGNAL LOST");
 	return false;
 }
 
@@ -60,30 +63,28 @@ tryConnect(const char *ssid, const char *wpakey)
 bool
 TryConnect(Dictionary &pb)
 {
-	TLV::Record	 ssid;
-	TLV::Record	 wpakey;
 	uint8_t		*cursor;
 
-	if ((ssid.Len = config::LastSSID(ssid.Val, 32)) != 0) {
-		Serial.print("LAST SSID: ");
-		Serial.println(ssid.Val);
-		if (pb.Lookup(ssid.Val, ssid.Len, wpakey)) {
-			if (tryConnect((const char *)ssid.Val, (const char *)wpakey.Val)) {
+	if ((ssidrec.Len = Config::LastSSID(ssidrec.Val, 32)) != 0) {
+		Display::Print("LAST SSID: ");
+		Display::Println(ssidrec.Val);
+		if (pb.Lookup(ssidrec.Val, ssidrec.Len, wpakeyrec)) {
+			if (tryConnect((const char *)ssidrec.Val, (const char *)wpakeyrec.Val)) {
 				return true;
 			}
 		} else {
-			Serial.println("WPAKEY NOT FOUND");
+			Display::Println("WPAKEY NOT FOUND");
 		}
 	}
 
 	while ((cursor != NULL) && (cursor[0] != TAG_EMPTY)) {
-		TLV::ReadFromMemory(ssid, cursor);
-		TLV::SkipRecord(ssid, cursor);
+		TLV::ReadFromMemory(ssidrec, cursor);
+		TLV::SkipRecord(ssidrec, cursor);
 		
-		TLV::ReadFromMemory(wpakey, cursor);
-		TLV::SkipRecord(ssid, cursor);
+		TLV::ReadFromMemory(wpakeyrec, cursor);
+		TLV::SkipRecord(wpakeyrec, cursor);
 
-		if (tryConnect(ssid.Val, wpakey.Val)) {
+		if (tryConnect(ssidrec.Val, wpakeyrec.Val)) {
 			return true;
 		}
 	}
@@ -103,16 +104,16 @@ tryConnect(Dictionary &pb, int network)
 		return false;
 	}
 
-	Serial.print("MODEM: CHECK ");
-	Serial.print(ssid);
-	Serial.print(": ");
+	Display::Print("MODEM: CHECK ");
+	Display::Print(ssid);
+	Display::Print(": ");
 
 	if (!pb.Lookup(ssid, uint8_t(ssidLen), password)) {
-		Serial.println("NOT FOUND");
+		Display::Println("NOT FOUND");
 		return false;
 	}
 
-	Serial.println("CONNECTING");
+	Display::Println("CONNECTING");
 	return tryConnect(ssid, password.Val);
 }
 
@@ -129,15 +130,15 @@ Autoconnect(Dictionary &pb, bool reset)
 	int	networkCount = 0;
 	int	network = 0;
 
-	Serial.println("MODEM: TRY AUTOCONNECT");
+	Display::Println("MODEM: TRY AUTOCONNECT");
 
 	if (reset) {
-		Serial.println("RADIO RESET");
+		Display::Println("RADIO RESET");
 		SetupWiFi();
 		WiFi.disconnect();
 		delay(1000);
 	} else {
-		Serial.println("NO RESET");
+		Display::Println("NO RESET");
 	}
 
 	networkCount = WiFi.scanNetworks();
@@ -147,7 +148,31 @@ Autoconnect(Dictionary &pb, bool reset)
 		}
 	}
 
-	Serial.println("NO CARRIER");
+	Display::Println("NO CARRIER");
 	return false;
 }
 
+
+bool
+Reconnect(Dictionary &pb)
+{
+	if (!tryConnect(ssidrec.Val, wpakeyrec.Val)) {
+		return TryConnect(pb);
+	}
+
+	return true;
+}
+
+
+void
+WiFiRefresh(Dictionary &pb)
+{
+	Meter::Update();
+
+	if (WiFi.status() == WL_CONNECTED) {
+		return;
+	}
+
+	Display::Println("CARRIER SIGNAL LOST: ATC");
+	Reconnect(pb);
+}

src/main.cc

@@ -2,10 +2,11 @@
 #include <SPIFFS.h>
 
 #include "Arena.h"
+#include "Config.h"
 #include "Dictionary.h"
 #include "Display.h"
 #include "WiFiMgr.h"
-#include "prefs.h"
+#include "WiFiMeter.h"
 #include "homenet.h"
 
 
@@ -23,31 +24,31 @@ setupPhonebook()
 	size_t	fileSize = pbFile.size();
 	bool	ok = false;
 	
-	Serial.print("DAT FILE ");
-	Serial.print(fileSize);
-	Serial.println("B");
+	Display::Print("DAT FILE ");
+	Display::Print(String(fileSize).c_str());
+	Display::Println("B");
 	if (fileSize == 0) {
-		Serial.println("INIT PHONEBOOK");
+		Display::Println("INIT PHONEBOOK");
 		phonebook.Set(HOME_SSID, HOME_SSIDLEN, HOME_WPA, HOME_WPALEN);
 		if (WriteArena(arena, pbFilePath) == 0) {
 			ok = true;
 		}
 
 		pbFile.close();
-		config::SetLastSSID(HOME_SSID);
+		Config::SetLastSSID(HOME_SSID);
 
 		return ok;
 	}	
 	fileSize = fileSize > PHONEBOOK_SIZE ? PHONEBOOK_SIZE : fileSize;
 
-	Serial.print("LOAD PHONEBOOK ");
+	Display::Print("LOAD PHONEBOOK ");
 	if (fileSize != pbFile.read(phonebookBuffer, fileSize)) {
-		Serial.println("FAILED");
+		Display::Println("FAILED");
 		pbFile.close();
 		return false;
 	}
 
-	Serial.println("OK");
+	Display::Println("OK");
 	pbFile.close();
 	phonebook.DumpKVPairs();
 	return true;
@@ -56,32 +57,35 @@ setupPhonebook()
 
 void setup() {
 	Serial.begin(115200);
-	while (!Serial) ;
+	Display::Init();
 
-	display.Clear();
-
-	Serial.println("MODEM BOOT");
+	Display::Println("MODEM BOOT");
+	Display::Clear();
+	Display::Println("MODEM BOOT");
 	InitializeArena(arena);
 	NewStaticArena(arena, phonebookBuffer, PHONEBOOK_SIZE);
+	Meter::Begin();
+	Meter::Enable();
 
-	while (true);
-
+	Display::Println("SPIFFS INIT");
 	if (!SPIFFS.begin(true) && !SPIFFS.begin(false)) {
-		Serial.println("SPIFFS BEGIN FAIL");
+		Display::Println("SPIFFS BEGIN FAIL");
 		while (true) ;
 	}
 	setupPhonebook();
 
-	if (config::StartTryConnecting()) {
+	if (Config::StartTryConnecting()) {
+		Display::Println("AUTO ATC");
 		if (!TryConnect(phonebook)) {
 			Autoconnect(phonebook);
 		}
 	}
 
-	Serial.println("MODEM READY");
+	Display::Println("MODEM READY");
 }
 
 void loop() {
-  // put your main code here, to run repeatedly:
+	delay(1000);
+	Meter::Update();
 }