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GitshaoxiangGitshaoxiang
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add SIM800 HTTP Example
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3 files changed

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‎examples/Modules/SIM800L/HTTP/HTTP.ino

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#include "M5Stack.h"
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#include "TFTTerminal.h"
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TFT_eSprite TerminalBuff = TFT_eSprite(&M5.Lcd);
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TFTTerminal terminal(&TerminalBuff);
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String waitRevice()
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{
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String recvStr;
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do
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{
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recvStr = Serial2.readStringUntil('\n');
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} while (recvStr.length() == 0);
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Serial.println(recvStr);
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terminal.println(recvStr);
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return recvStr;
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}
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void sendATCMD(String cmdStr)
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{
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Serial2.print(cmdStr);
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delay(100);
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}
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int sendATCMDAndRevice(String cmdStr)
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{
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delay(1000);
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Serial2.print(cmdStr);
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delay(100);
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waitRevice();
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String recvStr = waitRevice();
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delay(100);
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if (recvStr.indexOf("OK") != -1)
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{
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return 0;
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}
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else
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{
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return -1;
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}
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}
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void GET() {
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terminal.println("GET Request");
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sendATCMD("AT?\r\n");
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delay(100);
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Serial2.flush();
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sendATCMDAndRevice("AT+CGATT?\r\n");
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sendATCMDAndRevice("AT+SAPBR=3,1,\"CONTYPE\",\"GPRS\"\r\n");
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sendATCMDAndRevice("AT+SAPBR=3,1,\"APN\",\"CMNET\"\r\n");
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sendATCMDAndRevice("AT+SAPBR=0,1\r\n");
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sendATCMDAndRevice("AT+SAPBR=1,1\r\n");
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sendATCMDAndRevice("AT+HTTPINIT\r\n");
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sendATCMDAndRevice("AT+HTTPPARA=\"URL\",\"http://api.m5stack.com/v1\"\r\n");
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sendATCMDAndRevice("AT+HTTPACTION=0\r\n");
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// while(!Serial2.available());
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delay(5000);
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sendATCMDAndRevice("AT+HTTPREAD\r\n");
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while(Serial2.available()){
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String recvStr;
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recvStr = Serial2.readStringUntil('\n');
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Serial.println(recvStr);
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terminal.println(recvStr);
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}
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sendATCMDAndRevice("AT+HTTPTERM\r\n");
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}
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// void POST() {
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// terminal.println("POST Request");
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// sendATCMD("AT?\r\n");
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// delay(100);
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// Serial2.flush();
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// sendATCMDAndRevice("AT+CGATT?\r\n");
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// sendATCMDAndRevice("AT+SAPBR=3,1,\"CONTYPE\",\"GPRS\"\r\n");
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// sendATCMDAndRevice("AT+SAPBR=3,1,\"APN\",\"CMNET\"\r\n");
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// sendATCMDAndRevice("AT+SAPBR=0,1\r\n");
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// sendATCMDAndRevice("AT+SAPBR=1,1\r\n");
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// sendATCMDAndRevice("AT+HTTPINIT\r\n");
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// sendATCMDAndRevice("AT+HTTPPARA=\"CID\",1\r\n");
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// sendATCMDAndRevice("AT+HTTPPARA=\"CONTENT\",\"application/x-www-form-urlencoded\"\r\n");
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// sendATCMDAndRevice("AT+HTTPPARA=\"URL\",\"https://getman.cn/api/request\"\r\n");
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// sendATCMD("AT+HTTPDATA=10,10000\r\n");
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// sendATCMD("M5STACK,GO\r\n");
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// sendATCMDAndRevice("AT+HTTPACTION=1\r\n");
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// delay(5000);
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// sendATCMDAndRevice("AT+HTTPREAD\r\n");
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// while(Serial2.available()){
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// String recvStr;
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// recvStr = Serial2.readStringUntil('\n');
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// Serial.println(recvStr);
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// terminal.println(recvStr);
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// }
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// sendATCMDAndRevice("AT+HTTPTERM\r\n");
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// }
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void setup()
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{
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M5.begin();
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Serial2.begin(115200, SERIAL_8N1, 16, 17);
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Serial2.flush();
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delay(1000);
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M5.Lcd.fillRect(0, 0, 320, 240, TFT_BLACK);
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M5.Lcd.fillRect(0, 0, 320, 40, TFT_WHITE);
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M5.Lcd.setTextColor(TFT_BLACK);
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M5.Lcd.setTextDatum(TC_DATUM);
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M5.Lcd.drawString("SIM800L HTTP GET/POST", 160, 10, 4);
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M5.Lcd.setTextDatum(TL_DATUM);
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M5.Lcd.setTextColor(TFT_WHITE);
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TerminalBuff.createSprite(240,200);
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terminal.setGeometry(20,55,300,200);
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terminal.setFontsize(1);
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terminal.println("Press Btn A GET Request");
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terminal.println("Press Btn B POST Request");
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};
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void loop()
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{
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M5.update();
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if(M5.BtnA.wasPressed()) GET();
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if(M5.BtnC.wasPressed()) {
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String recvStr;
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recvStr = Serial2.readStringUntil('\n');
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Serial.println(recvStr);
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terminal.println(recvStr);
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};
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delay(10);
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}
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‎examples/Modules/SIM800L/HTTP/TFTTerminal.cpp

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#include "TFTTerminal.h"
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TFTTerminal::TFTTerminal(TFT_eSprite *dis_buff_ptr)
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{
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_dis_buff_ptr = dis_buff_ptr;
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memset(discharbuff, 0, 55 * 60);
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}
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TFTTerminal::~TFTTerminal()
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{
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}
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void TFTTerminal::setcolor( uint16_t color, uint16_t bk_color )
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{
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_color = color;
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_bkcolor = bk_color;
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}
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void TFTTerminal::setGeometry(uint16_t x, uint16_t y, uint16_t w, uint16_t h )
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{
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_win_x_pos = x;
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_win_y_pos = y;
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_win_w = w;
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_win_h = h;
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_line_x_limit = _win_w / _font_x_size;
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_line_y_limit = _win_h / _font_y_size;
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}
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void TFTTerminal::setFontsize(uint8_t size)
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{
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size = ( size == 0 ) ? 1 : size;
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_font_x_size = 5 * size ;
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_font_y_size = 6 * size ;
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_fontSize = size;
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_line_x_limit = _win_w / _font_x_size;
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_line_y_limit = _win_h / _font_y_size;
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}
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size_t TFTTerminal::write(uint8_t chardata)
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{
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bool flush_page_flag = false;
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uint8_t dis_y_pos = 0;
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if ((chardata == '\r') || (chardata == '\n'))
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{
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xpos = 0;
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ypos++;
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ypos = ypos % 60;
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memset(discharbuff[ypos % 60], 0, 55);
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return 1;
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}
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else if(xpos >= _line_x_limit)
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{
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xpos = 0;
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ypos++;
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ypos = ypos % 60;
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memset(discharbuff[ypos % 60], 0, 55);
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}
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discharbuff[ypos][xpos] = chardata;
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xpos++;
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if ((dispos <= ypos) && ((ypos - dispos) > _line_y_limit))
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{
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dispos = ypos - _line_y_limit;
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flush_page_flag = true;
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}
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else if ((dispos <= ypos) && ((ypos - dispos) <= _line_y_limit))
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{
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dis_y_pos = ypos - dispos;
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flush_page_flag = false;
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}
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else if ((dispos > ypos) && ((60 - (dispos - ypos)) > _line_y_limit))
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{
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dispos = 60 - ( _line_y_limit - ypos );
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flush_page_flag = true;
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}
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else if ((dispos > ypos) && ((60 - (dispos - ypos)) > _line_y_limit))
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{
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dis_y_pos = 60 - ( dispos - ypos );
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flush_page_flag = false;
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}
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dispos = dispos % 60;
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_dis_buff_ptr->setTextColor(_color);
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_dis_buff_ptr->setTextSize(_fontSize);
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if( flush_page_flag )
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{
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_dis_buff_ptr->fillSprite(_bkcolor);
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for (size_t i = 0; i < _line_y_limit; i++)
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{
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_dis_buff_ptr->drawString((char *)discharbuff[(dispos + i) % 60], 0, i * _font_y_size);
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}
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}
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else
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{
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_dis_buff_ptr->drawChar(chardata, ( xpos - 1 ) * _font_x_size, dis_y_pos * _font_y_size );
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}
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_dis_buff_ptr->pushSprite(_win_x_pos, _win_y_pos);
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return 1;
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}
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size_t TFTTerminal::write(const uint8_t *buffer, size_t size)
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{
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while ((size != 0) && (*buffer != '\0'))
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{
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if ((*buffer == '\r') || (*buffer == '\n'))
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{
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xpos = 0;
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ypos++;
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ypos = ypos % 60;
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memset(discharbuff[ypos % 60], 0, 55);
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buffer++;
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size--;
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continue;
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}
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else if(xpos >= _line_x_limit)
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{
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xpos = 0;
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ypos++;
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ypos = ypos % 60;
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memset(discharbuff[ypos % 60], 0, 55);
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}
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discharbuff[ypos][xpos] = *buffer;
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xpos++;
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buffer++;
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size--;
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}
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if ((dispos <= ypos) && ((ypos - dispos) > _line_y_limit))
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{
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dispos = ypos - _line_y_limit;
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}
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else if ((dispos > ypos) && ((60 - (dispos - ypos)) > _line_y_limit))
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{
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dispos = 60- ( _line_y_limit - ypos );
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}
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dispos = dispos % 60;
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_dis_buff_ptr->setTextColor(_color);
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_dis_buff_ptr->setTextSize(_fontSize);
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_dis_buff_ptr->fillSprite(_bkcolor);
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//_dis_buff_ptr->fillRect(_win_x_pos, _win_y_pos, _win_w, _win_h, _bkcolor);
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for (size_t i = 0; i < _line_y_limit; i++)
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{
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_dis_buff_ptr->drawString((char *)discharbuff[(dispos + i) % 60], 0, i * _font_y_size);
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}
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_dis_buff_ptr->pushSprite(_win_x_pos, _win_y_pos);
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return 1;
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}

‎examples/Modules/SIM800L/HTTP/TFTTerminal.h

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#ifndef _TFTTERMINAL_H_
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#define _TFTTERMINAL_H_
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#include <M5Stack.h>
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#include <Print.h>
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class TFTTerminal : public Print
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{
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private:
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TFT_eSprite *disptr;
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char discharbuff[60][55];
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uint32_t xpos = 0,ypos = 0, dispos = 0;
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TFT_eSprite* _dis_buff_ptr = NULL;
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uint16_t _bkcolor = TFT_BLACK;
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uint16_t _color = TFT_GREEN;
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uint16_t _win_x_pos = 0,_win_y_pos = 0,_win_w = 320,_win_h = 240;
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uint16_t _font_x_size = 6,_font_y_size = 8;
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uint8_t _fontSize = 0;
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uint16_t _line_x_limit = 53,_line_y_limit = 30;
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public:
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TFTTerminal(TFT_eSprite *dis_buff_ptr);
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~TFTTerminal();
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void setcolor( uint16_t color, uint16_t bk_color );
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void setGeometry(uint16_t x, uint16_t y, uint16_t w, uint16_t h );
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void setFontsize(uint8_t size);
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size_t write(uint8_t) ;
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size_t write(const uint8_t *buffer, size_t size);
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};
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#endif

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