Diff: ESP8266.cpp

Revision:

0:eb6507dc4669

Child:

1:af8bf1171171

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ESP8266.cpp	Wed Jun 27 06:50:30 2018 +0000
@@ -0,0 +1,138 @@
+/* ESP8266 Example
+ * Copyright (c) 2015 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "ESP8266.h"
+
+ESP8266::ESP8266(PinName tx, PinName rx, bool debug)
+    : _serial(tx, rx, 1024), _parser(_serial) {
+    _serial.baud(115200);
+    _parser.debugOn(debug);
+}
+
+bool ESP8266::startup(int mode) {
+    if(mode < 1 || mode > 3) {
+        return false;
+    }
+
+    return reset()
+        && _parser.send("AT+CWMODE_CUR=%d", mode)
+        && _parser.recv("OK")
+        && _parser.send("AT+CIPMUX=1")
+        && _parser.recv("OK")
+        && _parser.send("AT+CIPDINFO=1")
+        && _parser.recv("OK");
+}
+
+bool ESP8266::reset(void) {
+    for (int i = 0; i < 2; i++) {
+        if (_parser.send("AT+RST")
+            && _parser.recv("OK\r\nready")) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+bool ESP8266::connect(const char *ap, const char *passPhrase) {
+    return _parser.send("AT+CWJAP_CUR=\"%s\",\"%s\"", ap, passPhrase)
+        && _parser.recv("OK");
+}
+
+bool ESP8266::disconnect(void) {
+    return _parser.send("AT+CWQAP") && _parser.recv("OK");
+}
+
+char* ESP8266::getIPAddress(void) {
+    if (!(_parser.send("AT+CIFSR")
+        && _parser.recv("+CIFSR:STAIP,\"%[^\"]\"", _ip_buffer)
+        && _parser.recv("OK"))) {
+        return 0;
+    }
+
+    return _ip_buffer;
+}
+
+const char* ESP8266::getMACAddress(void) {
+    if (!(_parser.send("AT+CIFSR")
+        && _parser.recv("+CIFSR:STAMAC,\"%[^\"]\"", _mac_buffer)
+        && _parser.recv("OK"))) {
+        return 0;
+    }
+
+    return _mac_buffer;
+}
+
+bool ESP8266::isConnected(void) {
+    return getIPAddress() != 0;
+}
+
+bool ESP8266::open(int linkId, int localPort) {
+    return _parser.send("AT+CIPSTART=%d,\"%s\",\"%s\",%d,%d,%d", linkId, "UDP","192.168.0.0",49000, localPort, 2)
+        && _parser.recv("OK");
+}
+
+bool ESP8266::send(const void* data, uint32_t linkId, uint32_t amount, const char* addr, int port) {
+    //May take a second try if device is busy
+    for (unsigned i = 0; i < 2; i++) {
+        if (_parser.send("AT+CIPSEND=%d,%d,\"%s\",%d", linkId, amount, addr, port)
+            && _parser.recv(">")
+            && (_parser.write((char*)data, (int)amount) >= 0)
+            && _parser.recv("SEND OK")) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+int32_t ESP8266::recv(void *data, uint32_t amount, char* IP, int* port)  {
+    uint32_t linkId;
+    uint32_t recv_amount;
+
+    if (!(_parser.recv("+IPD,%d,%d,%[^\,],%d:", &linkId, &recv_amount, IP, port)
+        && recv_amount <= amount
+        && _parser.read((char*)data, recv_amount))) {
+        return -1;
+    }
+
+    return recv_amount;
+}
+
+bool ESP8266::close(int id) {
+    //May take a second try if device is busy
+    for (unsigned i = 0; i < 2; i++) {
+        if (_parser.send("AT+CIPCLOSE=%d", id)
+            && _parser.recv("OK")) {
+            return true;
+        }
+    }
+
+    return false;
+}
+
+void ESP8266::setTimeout(uint32_t timeout_ms) {
+    _parser.setTimeout(timeout_ms);
+}
+
+bool ESP8266::readable() {
+    return _serial.readable();
+}
+
+bool ESP8266::writeable() {
+    return _serial.writeable();
+}
+