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max-7seg-clock
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Async server

This commit is contained in:
Stefan Ostermann 2021-09-18 19:32:44 +02:00
parent cde03edb44
commit 5056994b96
4 changed files with 136 additions and 152 deletions
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5
README.md
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@ -1,3 +1,6 @@
# Clock made out of 7 segment displays
This is a clock made out of many 7 segment displays driven by a MAX7219 driver IC.
Some parts of the 7 segment displays are driven like pixels.
Some parts of the 7 segment displays are driven like pixels.
## Setup / Preparations
In Platformio, use "Project Tasks -> Platform -> Upload Filesystem Image" to upload the content of the data folder to the flash of the esp.

25
data/index.html Normal file
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@ -0,0 +1,25 @@
<!DOCTYPE html> <html>
<head><meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
<title>TooManySevenSegmentsClock</title>
<style>html { font-family: Helvetica; display: inline-block; margin: 0px auto; text-align: center;}
body{margin-top: 50px;} h1 {color: #444444;margin: 50px auto 30px;}
p {font-size: 24px;color: #444444;margin-bottom: 10px;}
</style>
</head>
<body>
<div id="webpage">
<h1>TooManySevenSegmentsClock</h1>
<p>Time:
</p>
<form action="/set_time" method="post">
<input type="number" min="0" max="23" id="hours" value="%HOURS%" name="hours"><br><br>
<input type="number" min="0" max="59" id="minutes" value="%MINUTES%" name="minutes"><br><br>
<input type="submit" value="Submit">
</form>
</div>
</body>
</html>

9
platformio.ini
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@ -14,11 +14,10 @@ board = d1_mini
framework = arduino
monitor_speed = 115200
upload_port = /dev/ttyUSB0
board_build.filesystem = littlefs
lib_deps =
wayoda/LedControl@^1.0.6
adafruit/RTClib@^1.13.0
tzapu/WiFiManager@^0.16.0
adafruit/Adafruit SSD1306@^2.4.6
adafruit/Adafruit GFX Library@^1.10.10
adafruit/Adafruit BusIO@^1.8.2
me-no-dev/ESPAsyncTCP@^1.2.2
me-no-dev/ESP Async WebServer@^1.2.3
alanswx/ESPAsyncWiFiManager@^0.30

249
src/main.cpp
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@ -2,14 +2,16 @@
#include "LedControl.h"
#include "RTClib.h" // RTC library
#include <ESP8266WiFi.h> //https://github.com/esp8266/Arduino
#include <ESP8266WebServer.h>
#include "WiFiManager.h" //https://github.com/tzapu/WiFiManager
#include <ESP8266WiFi.h>
#include <ESPAsyncWiFiManager.h>
#include <ESPAsyncTCP.h>
#include <ESPAsyncWebServer.h>
#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <FS.h> // Use the SPIFFS library for the filesystem
#include <LittleFS.h>
#include "disp.h"
@ -54,22 +56,59 @@ unsigned long delaytime = 500;
char str[24];
void configModeCallback(WiFiManager *myWiFiManager);
ESP8266WebServer server(80);
void configModeCallback(AsyncWiFiManager *myWiFiManager);
AsyncWebServer server(80);
DNSServer dns;
void handleRoot(); // function prototypes for HTTP handlers
void handleNotFound();
void handleBody();
void reconnect();
void setTime(char* timeStr);
void setTime(char *timeStr);
String SendHTML();
String processor(const String &var);
void setup()
{
Serial.begin(115200);
delay(100);
Serial.println("Starting...");
if (!rtc.begin())
{
Serial.println("Couldn't find RTC");
delay(200);
ESP.reset();
}
else
{
Serial.println("RTC ready.");
}
/* The MAX72XX is in power-saving mode on startup, we have to do a wakeup call */
for (int i = 0; i < lc.getDeviceCount(); i++)
{
lc.shutdown(i, false);
lc.setIntensity(i, 8);
}
for (int i = 0; i < 8; i++)
{
lc.setDigit(1, i, 8, true);
}
Serial.println("Display initialized.");
// Initialize SPIFFS
if (!LittleFS.begin())
{
Serial.println("An Error has occurred while mounting LittleFS");
return;
}
//WiFiManager
//Local intialization. Once its business is done, there is no need to keep it around
WiFiManager wifiManager;
AsyncWiFiManager wifiManager(&server, &dns);
//set callback that gets called when connecting to previous WiFi fails, and enters Access Point mode
wifiManager.setAPCallback(configModeCallback);
@ -79,51 +118,58 @@ void setup()
//and goes into a blocking loop awaiting configuration
if (!wifiManager.autoConnect())
{
Serial.println("failed to connect and hit timeout");
Serial.println("failed to connect Wifi and hit timeout");
//reset and try again, or maybe put it to deep sleep
ESP.reset();
delay(1000);
//ESP.reset();
//delay(1000);
}
else
{
//if you get here you have connected to the WiFi
Serial.println("Wifi connected.");
}
//if you get here you have connected to the WiFi
Serial.println("connected...yeey :)");
server.on("/", handleRoot);
server.on("/set_time", handleBody);
server.onNotFound(handleNotFound);
//server.on("/", handleRoot);
// Route for root / web page
server.on("/", HTTP_GET, [](AsyncWebServerRequest *request)
{ request->send(LittleFS, "/index.html", String(), false, processor); });
server.on("/set_time", HTTP_POST, [](AsyncWebServerRequest *request)
{
//List all parameters
int params = request->params();
uint8_t hours = rtc.now().hour();
uint8_t minutes = rtc.now().minute();
for (int i = 0; i < params; i++)
{
AsyncWebParameter *p = request->getParam(i);
if (p->isPost())
{
Serial.printf("POST[%s]: %s\n", p->name().c_str(), p->value().c_str());
if (p->name() == "hours")
{
hours = atoi(p->value().c_str());
}
else if (p->name() == "minutes")
{
minutes = atoi(p->value().c_str());
}
}
}
DateTime now = rtc.now();
rtc.adjust(DateTime(2021, 9, 17, hours, minutes, 0));
request->redirect("/");
});
server.begin();
Serial.println("HTTP server started");
/* The MAX72XX is in power-saving mode on startup, we have to do a wakeup call */
for (int i=0;i<lc.getDeviceCount();i++) {
lc.shutdown(i,false);
lc.setIntensity(i,8);
}
for (int i=0;i<8;i++) {
lc.setDigit(1,i,8,true);
}
/* and clear the display */
Serial.println("starting");
delay(3000); // wait for console opening
//rtc.begin();
if (!rtc.begin())
{
Serial.println("Couldn't find RTC");
//while (1);
return;
}
rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
Serial.println("Setup complete.");
}
void configModeCallback(WiFiManager *myWiFiManager)
void configModeCallback(AsyncWiFiManager *myWiFiManager)
{
Serial.println("Entered config mode");
Serial.println(WiFi.softAPIP());
@ -131,116 +177,27 @@ void configModeCallback(WiFiManager *myWiFiManager)
Serial.println(myWiFiManager->getConfigPortalSSID());
}
void printNumber(int v)
{
int ones;
int tens;
int hundreds;
boolean negative;
if (v < -999 || v > 999)
return;
if (v < 0)
{
negative = true;
v = v * -1;
}
ones = v % 10;
v = v / 10;
tens = v % 10;
v = v / 10;
hundreds = v;
if (negative)
{
//print character '-' in the leftmost column
lc.setChar(0, 3, '-', false);
}
else
{
//print a blank in the sign column
lc.setChar(0, 3, ' ', false);
}
//Now print the number digit by digit
lc.setDigit(0, 2, (byte)hundreds, false);
lc.setDigit(0, 1, (byte)tens, false);
lc.setDigit(0, 0, (byte)ones, false);
}
void loop()
{
server.handleClient();
setTime(str);
printString(str, lc);
}
void setTime(char* timeStr) {
void setTime(char *timeStr)
{
DateTime now = rtc.now();
sprintf(timeStr, "%02d:%02d", now.hour(), now.minute());
}
void handleRoot()
// Replaces placeholder with minutes and hours
String processor(const String &var)
{
server.send(200, "text/html", SendHTML());
if (var == "HOURS")
{
return String((int)rtc.now().hour());
}
else if (var == "MINUTES")
{
return String((int)rtc.now().minute());
}
}
void handleBody() { //Handler for the body path
if (server.hasArg("hours")== false || server.hasArg("minutes")==false){ //Check if body received
server.send(200, "text/plain", "Body not received");
return;
}
uint8_t hours = atoi(server.arg("hours").c_str());
uint8_t minutes = atoi(server.arg("minutes").c_str());
DateTime now = rtc.now();
rtc.adjust(DateTime(2021, 9, 17, hours, minutes, 0));
server.send(200, "text/html", SendHTML());
}
void handleNotFound()
{
server.send(404, "text/plain", "Not found");
}
String SendHTML()
{
setTime(str);
String ptr = "<!DOCTYPE html> <html>\n";
ptr += "<head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0, user-scalable=no\">\n";
ptr += "<title>TooManySevenSegmentsClock</title>\n";
ptr += "<style>html { font-family: Helvetica; display: inline-block; margin: 0px auto; text-align: center;}\n";
ptr += "body{margin-top: 50px;} h1 {color: #444444;margin: 50px auto 30px;}\n";
ptr += "p {font-size: 24px;color: #444444;margin-bottom: 10px;}\n";
ptr += "</style>\n";
ptr += "</head>\n";
ptr += "<body>\n";
ptr += "<div id=\"webpage\">\n";
ptr += "<h1>TooManySevenSegmentsClock</h1>\n";
ptr += "<p>Time: ";
ptr += "</p>";
ptr += "<form action=\"/set_time\" method=\"post\">";
ptr += " <input type=\"number\" min=\"0\" max=\"23\" id=\"hours\" value=\"";
ptr += (int)rtc.now().hour();
ptr += "\" name=\"hours\"><br><br>";
ptr += " <input type=\"number\" min=\"0\" max=\"59\" id=\"minutes\" value=\"";
ptr += (int)rtc.now().minute();
ptr += "\" name=\"minutes\"><br><br>";
ptr += " <input type=\"submit\" value=\"Submit\">";
ptr += "</form> ";
ptr += "</div>\n";
ptr += "</body>\n";
ptr += "</html>\n";
return ptr;
}