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RESTuino.cpp
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RESTuino.cpp
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#include "RESTuino.h"
static const uint8_t n = 40;
static uint16_t gpio_arr[n] = {}; // すべて0で初期化
// Pubished values for SG90 servos; adjust if needed
static const uint32_t minUs = 0;
static const uint32_t maxUs = 5000;
// 180> angle > angle0 >= 0にすること
static const uint8_t angle0 = 5;
static const uint8_t angle = 60;
static WebServer server(80);
static Servo servo1;
enum RESTuino::status RESTuino::request_to_num(String req)
{
if (req == "nan")
return RESTuino::status::nan;
else if (req == "digitalRead")
return RESTuino::status::digitalread;
else if (req == "digitalWrite")
return RESTuino::status::digitalwrite;
else if (req == "analogRead")
return RESTuino::status::analogread;
else if (req == "ledcWrite")
return RESTuino::status::ledcwrite;
else if (req == "Servo")
return RESTuino::status::servo;
else if (req == "save")
return RESTuino::status::save;
else if (req == "load")
return RESTuino::status::load;
else if (req == "reboot")
return RESTuino::status::reboot;
else
return RESTuino::status::not_found;
}
void RESTuino::handle_not_found(void)
{
server.send(404, "text/plain", "Not Found.\r\n");
}
// to0 flag check
bool RESTuino::to0_flag()
{
return (servo1.read() > (angle + angle0) / 2) ? true : false;
}
// mode=true:angle0,angleのスイッチ, mode=false:自由角度への移動
void RESTuino::move_sg90(bool mode, uint8_t to_angle)
{
if (mode)
to0_flag() ? servo1.write(angle0) : servo1.write(angle);
else
servo1.write(to_angle);
}
String RESTuino::read_eeprom()
{
String mes;
for (uint8_t i = 0; i < n; i++) // GPIO:0-39
{
EEPROM.get(i * 4, gpio_arr[i]); // rom_ad=i*4
mes += String(gpio_arr[i]);
}
return mes;
}
// server.send含まない
bool RESTuino::put_to_control(uint8_t pin, String target)
{
Serial.println(gpio_arr[pin]);
switch (gpio_arr[pin])
{
case RESTuino::status::servo:
if (target == "switch")
{
move_sg90(true, 0);
return true;
}
else
{
move_sg90(false, target.toInt());
return true;
}
break;
case RESTuino::status::ledcwrite:
ledcWrite(0, target.toInt());
return true;
break;
case RESTuino::status::digitalwrite:
if (target == "HIGH" or target == "1")
{
digitalWrite(pin, HIGH);
return true;
}
else if (target == "LOW" or target == "0")
{
digitalWrite(pin, LOW);
return true;
}
else
{
return false;
}
break;
default: // nan, not found ○
return false;
break;
}
}
// server.send含まない
bool RESTuino::post_to_setup(uint8_t pin, uint8_t setup_mode)
{
Serial.println(setup_mode);
switch (setup_mode)
{
case RESTuino::status::servo:
servo1.setPeriodHertz(50); // Standard 50hz servo
servo1.attach(pin, minUs, maxUs);
gpio_arr[pin] = setup_mode; // 0-99はgpio statusとして保存
return true;
break;
case RESTuino::status::ledcwrite:
ledcSetup(0, 12800, 8);
ledcAttachPin(pin, 0);
gpio_arr[pin] = setup_mode;
return true;
break;
case RESTuino::status::digitalwrite:
pinMode(pin, OUTPUT);
gpio_arr[pin] = setup_mode;
return true;
break;
case RESTuino::status::digitalread:
pinMode(pin, INPUT);
gpio_arr[pin] = setup_mode;
return true;
break;
case RESTuino::status::analogread:
pinMode(pin, ANALOG);
gpio_arr[pin] = setup_mode;
return true;
break;
// nan, not found
// nanのPOST=DELETEのため、実装なし
default:
return false;
break;
}
}
void RESTuino::load_status()
{
read_eeprom();
for (uint8_t i = 0; i < n; i++)
{
post_to_setup(i, gpio_arr[i]); // server.send含まないこと
}
}
// server.send含んで良い
void RESTuino::put_to_control_root(uint8_t setup_mode)
{
switch (setup_mode)
{
case RESTuino::status::reboot:
server.send(202, "text/plain", "Rebooting...\r\n");
ESP.restart();
break;
case RESTuino::status::save:
for (uint8_t i = 0; i < n; i++)
{
EEPROM.put(i * 4, gpio_arr[i]); // address=i*4
}
if (EEPROM.commit())
server.send(200, "text/plain", "Saved\r\n");
else
server.send(400, "text/plain", "Cannot write to EEPROM\r\n");
ESP.restart();
break;
case RESTuino::status::load: // 作業途中でloadすると、キャッシュされたgpio_arrが消える
load_status();
server.send(200, "text/plain", "Loaded\r\n");
break;
// case restuino::not_found:
// nan, not found
default:
handle_not_found();
break;
}
}
// WiFi.localIP()->IP
String RESTuino::ip_to_String(uint32_t ip)
{
String result = "";
result += String((ip & 0xFF), 10);
result += ".";
result += String((ip & 0xFF00) >> 8, 10);
result += ".";
result += String((ip & 0xFF0000) >> 16, 10);
result += ".";
result += String((ip & 0xFF000000) >> 24, 10);
return result;
}
/* main */
void RESTuino::handle_root(void)
{
/* PUT: reboot, saveなど */
if (server.method() == HTTP_PUT)
put_to_control_root((uint8_t)request_to_num(server.arg("plain")));
/* GET: IP address, GPIO status(キャッシュ) */
else if (server.method() == HTTP_GET)
{
StaticJsonDocument<500> doc;
doc["IP address"] = ip_to_String(WiFi.localIP());
String mes = "";
for (uint8_t i = 0; i < n; i++) // GPIO:0-39
{
mes += String(gpio_arr[i]);
}
doc["GPIO status"] = mes;
char json_buf[500];
serializeJsonPretty(doc, json_buf, 500);
server.send(200, "application/json", json_buf);
}
/* DELETE :全ピンをnan状態にする */
else if (server.method() == HTTP_DELETE)
{
for (uint32_t i = 0; i < 1024; i++)
{
EEPROM.put(i, 0); // address=i*4
}
EEPROM.commit();
server.send(202, "text/plain", "Change all pins to nan status...\r\n");
ESP.restart();
}
else
{
handle_not_found();
}
}
// すべてのGPIOを制御
void RESTuino::handle_gpio(int pin)
{
/* POST ペリフェラル初期設定 */
if (server.method() == HTTP_POST)
{
if (post_to_setup(pin, (uint8_t)request_to_num(server.arg("plain"))))
server.send(200, "text/plain", server.arg("plain") + "\r\n");
else
handle_not_found();
}
/* PUT 更新 */
else if (server.method() == HTTP_PUT)
{
if (put_to_control(pin, server.arg("plain")))
server.send(200, "text/plain", server.arg("plain") + "\r\n");
else
handle_not_found();
}
/* GET 情報取得 */
else if (server.method() == HTTP_GET)
{
Serial.println(gpio_arr[pin]);
switch (gpio_arr[pin])
{
case RESTuino::status::servo:
server.send(200, "text/plain", String(servo1.read()) + "\r\n"); // statusをクライアントに返す
break;
case RESTuino::status::digitalread:
server.send(200, "text/plain", String(digitalRead(pin)) + "\r\n");
break;
case RESTuino::status::analogread:
server.send(200, "text/plain", String(analogRead(pin)) + "\r\n");
break;
default:
handle_not_found();
break;
}
}
/* DELETE : ピンをnan状態にする */
else if (server.method() == HTTP_DELETE)
{
gpio_arr[pin] = (uint8_t)RESTuino::status::nan;
server.send(202, "text/plain", "Change the pin to nan status... \r\n");
Serial.println(RESTuino::status::nan);
ESP.restart();
}
else
{
handle_not_found();
}
}
/* end main */
void RESTuino::setup()
{
// EEPROM setup
EEPROM.begin(1024); // 1kB 156byte=39*4
// load
load_status();
// シリアルコンソールのセットアップ
Serial.begin(serial_baud);
delay(100);
// WiFiに接続
Serial.print("Connecting to ");
Serial.print(ssid_def);
WiFi.begin(ssid_def, ssid_pass);
while (WiFi.status() != WL_CONNECTED)
{
delay(100);
Serial.print(".");
}
Serial.println();
MDNS.begin(host_name); // activate host_name.local
Serial.println();
Serial.println("WiFi connected.");
Serial.print("IP address: ");
Serial.println(WiFi.localIP());
// root
server.on("/", [&]()
{ handle_root(); });
// 17, 20, 24, 27~31, 37, 38なし
server.on("/gpio0", [&]()
{ handle_gpio(0); });
server.on("/gpio1", [&]()
{ handle_gpio(1); });
server.on("/gpio2", [&]()
{ handle_gpio(2); });
server.on("/gpio3", [&]()
{ handle_gpio(3); });
server.on("/gpio4", [&]()
{ handle_gpio(4); });
server.on("/gpio5", [&]()
{ handle_gpio(5); });
server.on("/gpio6", [&]()
{ handle_gpio(6); });
server.on("/gpio7", [&]()
{ handle_gpio(7); });
server.on("/gpio8", [&]()
{ handle_gpio(8); });
server.on("/gpio9", [&]()
{ handle_gpio(9); });
server.on("/gpio10", [&]()
{ handle_gpio(10); });
server.on("/gpio11", [&]()
{ handle_gpio(11); });
server.on("/gpio12", [&]()
{ handle_gpio(12); });
server.on("/gpio13", [&]()
{ handle_gpio(13); });
server.on("/gpio14", [&]()
{ handle_gpio(14); });
server.on("/gpio15", [&]()
{ handle_gpio(15); });
server.on("/gpio16", [&]()
{ handle_gpio(16); });
server.on("/gpio18", [&]()
{ handle_gpio(18); });
server.on("/gpio19", [&]()
{ handle_gpio(19); });
server.on("/gpio21", [&]()
{ handle_gpio(21); });
server.on("/gpio22", [&]()
{ handle_gpio(22); });
server.on("/gpio23", [&]()
{ handle_gpio(23); });
server.on("/gpio25", [&]()
{ handle_gpio(25); });
server.on("/gpio26", [&]()
{ handle_gpio(26); });
server.on("/gpio32", [&]()
{ handle_gpio(32); });
server.on("/gpio33", [&]()
{ handle_gpio(33); });
server.on("/gpio34", [&]()
{ handle_gpio(34); });
server.on("/gpio35", [&]()
{ handle_gpio(35); });
server.on("/gpio36", [&]()
{ handle_gpio(36); });
server.on("/gpio39", [&]()
{ handle_gpio(39); });
// onNotFound
server.onNotFound([&]()
{ handle_not_found(); });
server.begin();
}
void RESTuino::loop()
{
server.handleClient();
}