Kairi Kozuma
Wifi controlled robot that uses ESP8266 wifi chip.
Dependencies: Motordriver Servo mbed-dev mbed-rtos
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ESP8266_wifi_robot
by 
Kairi Kozuma
Diff: ESP8266.cpp
- Revision:
- 0:df754b773321
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ESP8266.cpp Sat Oct 29 15:35:26 2016 +0000
@@ -0,0 +1,99 @@
+#include "ESP8266.h"
+
+
+ESP8266::ESP8266(PinName tx, PinName rx, PinName reset, char * SSID, char * password) :
+ _esp(tx, rx), _reset(reset) {
+ strcpy(_ssid, SSID);
+ strcpy(_pwd, password);
+}
+
+// Setup for ESP8266
+void ESP8266::setup() {
+
+ /* Set wifi mode */
+ send("wifi.setmode(wifi.STATION)\r\n");
+
+ /* Set SSID and password */
+ strcpy(_snd, "wifi.sta.config(\"");
+ strcat(_snd, _ssid);
+ strcat(_snd, "\",\"");
+ strcat(_snd, _pwd);
+ strcat(_snd, "\")\r\n");
+ send();
+
+ wait(7);
+
+ /* Set up HTTP server */
+ send("srv=net.createServer(net.TCP)\r\n");
+ send("srv:listen(80,function(conn)\r\n");
+ send("conn:on(\"receive\",function(conn,payload)\r\n");
+ send("print(payload:match(\"Z%u\"))\r\n");
+ send("conn:send(\"<!DOCTYPE html>\")\r\n");
+ send("conn:send(\"<html>\")\r\n");
+ send("conn:send(\"<h1>Control Robot</h1>\")\r\n");
+ send("conn:send('<form action=\"\" method=\"POST\">\r\n')");
+ send("conn:send('<input type=\"submit\" name=\"ZF\" value=\"Forward\">\r\n')");
+ send("conn:send('<input type=\"submit\" name=\"ZB\" value=\"Back\">\r\n')");
+ send("conn:send('<input type=\"submit\" name=\"ZL\" value=\"Left\">\r\n')");
+ send("conn:send('<input type=\"submit\" name=\"ZR\" value=\"Right\">\r\n')");
+ send("conn:send('<input type=\"submit\" name=\"ZS\" value=\"Servo Left\">\r\n')");
+ send("conn:send('<input type=\"submit\" name=\"ZP\" value=\"Servo Right\">\r\n')");
+ send("conn:send('</form>\r\n')");
+ send("conn:send(\"</html>\")\r\n");
+ send("end)\r\n");
+ send("conn:on(\"sent\",function(conn) conn:close() end)\r\n");
+ send("end)\r\n");
+ wait(10);
+}
+
+void ESP8266::send()
+{
+ _esp.printf("%s", _snd);
+ Thread::wait(500);
+}
+
+void ESP8266::send(char * command) {
+ _esp.printf("%s", command);
+ Thread::wait(500);
+}
+
+void ESP8266::reset() {
+ _reset = 0;
+ wait(1); /* Not RTOS friendly */
+ _reset = 1;
+}
+
+void ESP8266::baud(int baudrate) {
+ char buffer[32];
+ sprintf(buffer, "AT+CIOBAUD=%d\r\n", baudrate);
+ send(buffer);
+
+ _esp.baud(baudrate);
+}
+
+void ESP8266::getIP() {
+ send("\r\nprint(wifi.sta.getip())\r\n");
+}
+
+void ESP8266::getMAC() {
+ send("\r\nprint(wifi.sta.getmac())\r\n");
+}
+
+int ESP8266::putc(int c) {
+ return _esp.putc(c);
+}
+
+int ESP8266::getc() {
+ return _esp.getc();
+}
+
+int ESP8266::readable() {
+ return _esp.readable();
+}
+int ESP8266::writeable() {
+ return _esp.writeable();
+}
+
+void ESP8266::attach(Callback< void()> func, SerialBase::IrqType type) {
+ _esp.attach(func, type);
+}