joe/PlatformIO_SSD1306_i2c
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just some reformatting - no code changes

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This commit is contained in:
Joe Tretter
2022-07-05 14:18:19 -05:00
parent 3da4eac62b
commit 655099ab64
1 changed files with 127 additions and 119 deletions
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230
src/main.cpp
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@@ -1,28 +1,29 @@
// Example posting to display: // Example posting to display:
// curl -XPOST --data-binary @- -H 'Content-Type:text/plain' http://esp32oled.local/oled // curl -XPOST --data-binary @- -H 'Content-Type:text/plain'
// http://esp32oled.local/oled
// I connected SCK to D22 and SDA to D21 // I connected SCK to D22 and SDA to D21
#include <Arduino.h>
#include <Adafruit_I2CDevice.h>
#include <Wire.h>
#include <Adafruit_GFX.h> #include <Adafruit_GFX.h>
#include <Adafruit_I2CDevice.h>
#include <Adafruit_SSD1306.h> #include <Adafruit_SSD1306.h>
#include <Arduino.h>
#include <ArduinoJson.h>
#include <ESPmDNS.h>
#include <PubSubClient.h>
#include <Update.h>
#include <WebServer.h>
#include <WiFi.h> #include <WiFi.h>
#include <WiFiClient.h> #include <WiFiClient.h>
#include <WebServer.h> #include <Wire.h>
#include <ESPmDNS.h>
#include <Update.h>
#include <uri/UriBraces.h> #include <uri/UriBraces.h>
#include <PubSubClient.h>
#include <ArduinoJson.h>
const char* mqtt_server = "mqtt.ddns.kawomi.com"; const char* mqtt_server = "mqtt.ddns.kawomi.com";
WiFiClient espClient; WiFiClient espClient;
PubSubClient client(espClient); PubSubClient client(espClient);
unsigned long lastMsg = 0; unsigned long lastMsg = 0;
#define MSG_BUFFER_SIZE (50) #define MSG_BUFFER_SIZE (50)
char msg[MSG_BUFFER_SIZE]; char msg[MSG_BUFFER_SIZE];
const char* host = "esp32oled"; const char* host = "esp32oled";
@@ -32,8 +33,8 @@ const char* password = "Paris2016";
WebServer server(80); WebServer server(80);
// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins) // Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
#define SCREEN_WIDTH 128 // OLED display width, in pixels #define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels #define SCREEN_HEIGHT 64 // OLED display height, in pixels
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1); Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);
@@ -42,33 +43,33 @@ Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);
*/ */
const char* loginIndex = const char* loginIndex =
"<form name='loginForm'>" "<form name='loginForm'>"
"<table width='20%' bgcolor='A09F9F' align='center'>" "<table width='20%' bgcolor='A09F9F' align='center'>"
"<tr>" "<tr>"
"<td colspan=2>" "<td colspan=2>"
"<center><font size=4><b>ESP32 Login Page</b></font></center>" "<center><font size=4><b>ESP32 Login Page</b></font></center>"
"<br>" "<br>"
"</td>" "</td>"
"<br>" "<br>"
"<br>" "<br>"
"</tr>" "</tr>"
"<td>Username:</td>" "<td>Username:</td>"
"<td><input type='text' size=25 name='userid'><br></td>" "<td><input type='text' size=25 name='userid'><br></td>"
"</tr>" "</tr>"
"<br>" "<br>"
"<br>" "<br>"
"<tr>" "<tr>"
"<td>Password:</td>" "<td>Password:</td>"
"<td><input type='Password' size=25 name='pwd'><br></td>" "<td><input type='Password' size=25 name='pwd'><br></td>"
"<br>" "<br>"
"<br>" "<br>"
"</tr>" "</tr>"
"<tr>" "<tr>"
"<td><input type='submit' onclick='check(this.form)' value='Login'></td>" "<td><input type='submit' onclick='check(this.form)' value='Login'></td>"
"</tr>" "</tr>"
"</table>" "</table>"
"</form>" "</form>"
"<script>" "<script>"
"function check(form)" "function check(form)"
"{" "{"
"if(form.userid.value=='admin' && form.pwd.value=='admin')" "if(form.userid.value=='admin' && form.pwd.value=='admin')"
@@ -80,49 +81,51 @@ const char* loginIndex =
" alert('Error Password or Username')/*displays error message*/" " alert('Error Password or Username')/*displays error message*/"
"}" "}"
"}" "}"
"</script>"; "</script>";
/* /*
* Server Index Page * Server Index Page
*/ */
const char* serverIndex = const char* serverIndex =
"<script src='https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js'></script>" "<script "
"<form method='POST' action='#' enctype='multipart/form-data' id='upload_form'>" "src='https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js'></"
"<input type='file' name='update'>" "script>"
"<input type='submit' value='Update'>" "<form method='POST' action='#' enctype='multipart/form-data' "
"id='upload_form'>"
"<input type='file' name='update'>"
"<input type='submit' value='Update'>"
"</form>" "</form>"
"<div id='prg'>progress: 0%</div>" "<div id='prg'>progress: 0%</div>"
"<script>" "<script>"
"$('form').submit(function(e){" "$('form').submit(function(e){"
"e.preventDefault();" "e.preventDefault();"
"var form = $('#upload_form')[0];" "var form = $('#upload_form')[0];"
"var data = new FormData(form);" "var data = new FormData(form);"
" $.ajax({" " $.ajax({"
"url: '/update'," "url: '/update',"
"type: 'POST'," "type: 'POST',"
"data: data," "data: data,"
"contentType: false," "contentType: false,"
"processData:false," "processData:false,"
"xhr: function() {" "xhr: function() {"
"var xhr = new window.XMLHttpRequest();" "var xhr = new window.XMLHttpRequest();"
"xhr.upload.addEventListener('progress', function(evt) {" "xhr.upload.addEventListener('progress', function(evt) {"
"if (evt.lengthComputable) {" "if (evt.lengthComputable) {"
"var per = evt.loaded / evt.total;" "var per = evt.loaded / evt.total;"
"$('#prg').html('progress: ' + Math.round(per*100) + '%');" "$('#prg').html('progress: ' + Math.round(per*100) + '%');"
"}" "}"
"}, false);" "}, false);"
"return xhr;" "return xhr;"
"}," "},"
"success:function(d, s) {" "success:function(d, s) {"
"console.log('success!')" "console.log('success!')"
"}," "},"
"error: function (a, b, c) {" "error: function (a, b, c) {"
"}" "}"
"});" "});"
"});" "});"
"</script>"; "</script>";
void reconnect() { void reconnect() {
// Loop until we're reconnected // Loop until we're reconnected
@@ -150,7 +153,7 @@ void callback(char* topic, byte* payload, unsigned int length) {
Serial.print("Message arrived ["); Serial.print("Message arrived [");
Serial.print(topic); Serial.print(topic);
String recBuf=""; String recBuf = "";
Serial.print("] "); Serial.print("] ");
for (int i = 0; i < length; i++) { for (int i = 0; i < length; i++) {
recBuf += (char)payload[i]; recBuf += (char)payload[i];
@@ -158,9 +161,9 @@ void callback(char* topic, byte* payload, unsigned int length) {
Serial.println(recBuf); Serial.println(recBuf);
StaticJsonDocument<1024> jsonDoc; StaticJsonDocument<1024> jsonDoc;
deserializeJson(jsonDoc,recBuf); deserializeJson(jsonDoc, recBuf);
const char* theText=jsonDoc["text"]; const char* theText = jsonDoc["text"];
int theSize=jsonDoc["size"]; int theSize = jsonDoc["size"];
display.setCursor(40, 0); display.setCursor(40, 0);
display.setTextSize(9); display.setTextSize(9);
@@ -175,8 +178,7 @@ void callback(char* topic, byte* payload, unsigned int length) {
display.display(); display.display();
} }
void writeToOled(String text) {
void writeToOled(String text){
display.clearDisplay(); display.clearDisplay();
display.setTextColor(WHITE); display.setTextColor(WHITE);
display.setCursor(0, 0); display.setCursor(0, 0);
@@ -193,9 +195,10 @@ void setup(void) {
delay(2000); delay(2000);
Serial.println("STARTUP"); Serial.println("STARTUP");
if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Address 0x3D for 128x64 if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Address 0x3D for 128x64
Serial.println(F("SSD1306 allocation failed")); Serial.println(F("SSD1306 allocation failed"));
for(;;); for (;;)
;
} }
delay(2000); delay(2000);
@@ -206,18 +209,18 @@ void setup(void) {
WiFi.begin(ssid, password); WiFi.begin(ssid, password);
Serial.println(""); Serial.println("");
// Wait for connection or reboot if it doesn't connect for too long // Wait for connection or reboot if it doesn't connect for too long
uint32_t wifiConnAttements = 0; uint32_t wifiConnAttements = 0;
while (WiFi.status() != WL_CONNECTED) { while (WiFi.status() != WL_CONNECTED) {
delay(500); delay(500);
Serial.print("."); Serial.print(".");
if (wifiConnAttements++ > 120) { if (wifiConnAttements++ > 120) {
Serial.println("<Wifi not connecting after 120 attmepts (1 min.) - rebooting>"); Serial.println(
"<Wifi not connecting after 120 attmepts (1 min.) - rebooting>");
ESP.restart(); ESP.restart();
} }
} }
Serial.println(""); Serial.println("");
Serial.print("Connected to "); Serial.print("Connected to ");
Serial.println(ssid); Serial.println(ssid);
@@ -225,7 +228,7 @@ void setup(void) {
Serial.println(WiFi.localIP()); Serial.println(WiFi.localIP());
/*use mdns for host name resolution*/ /*use mdns for host name resolution*/
if (!MDNS.begin(host)) { //http://esp32ota.local if (!MDNS.begin(host)) { // http://esp32ota.local
Serial.println("Error setting up MDNS responder!"); Serial.println("Error setting up MDNS responder!");
while (1) { while (1) {
delay(1000); delay(1000);
@@ -254,37 +257,43 @@ void setup(void) {
server.send(200, "text/html", text); server.send(200, "text/html", text);
}); });
/*handling uploading firmware file */ /*handling uploading firmware file */
server.on("/update", HTTP_POST, []() { server.on(
server.sendHeader("Connection", "close"); "/update", HTTP_POST,
server.send(200, "text/plain", (Update.hasError()) ? "FAIL" : "OK"); []() {
ESP.restart(); server.sendHeader("Connection", "close");
}, []() { server.send(200, "text/plain", (Update.hasError()) ? "FAIL" : "OK");
HTTPUpload& upload = server.upload(); ESP.restart();
if (upload.status == UPLOAD_FILE_START) { },
Serial.printf("Update: %s\n", upload.filename.c_str()); []() {
if (!Update.begin(UPDATE_SIZE_UNKNOWN)) { //start with max available size HTTPUpload& upload = server.upload();
Update.printError(Serial); if (upload.status == UPLOAD_FILE_START) {
} Serial.printf("Update: %s\n", upload.filename.c_str());
} else if (upload.status == UPLOAD_FILE_WRITE) { if (!Update.begin(
/* flashing firmware to ESP*/ UPDATE_SIZE_UNKNOWN)) { // start with max available size
if (Update.write(upload.buf, upload.currentSize) != upload.currentSize) { Update.printError(Serial);
Update.printError(Serial); }
} } else if (upload.status == UPLOAD_FILE_WRITE) {
} else if (upload.status == UPLOAD_FILE_END) { /* flashing firmware to ESP*/
if (Update.end(true)) { //true to set the size to the current progress if (Update.write(upload.buf, upload.currentSize) !=
Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize); upload.currentSize) {
} else { Update.printError(Serial);
Update.printError(Serial); }
} } else if (upload.status == UPLOAD_FILE_END) {
} if (Update.end(
}); true)) { // true to set the size to the current progress
Serial.printf("Update Success: %u\nRebooting...\n",
upload.totalSize);
} else {
Update.printError(Serial);
}
}
});
server.begin(); server.begin();
client.setServer(mqtt_server, 1883); client.setServer(mqtt_server, 1883);
client.setCallback(callback); client.setCallback(callback);
writeToOled("Ready."); writeToOled("Ready.");
} }
void loop(void) { void loop(void) {
@@ -295,5 +304,4 @@ void loop(void) {
reconnect(); reconnect();
} }
client.loop(); client.loop();
} }