1
ESP8266.cpp
- Committer:
- nikitoslav
- Date:
- 2018-06-27
- Revision:
- 1:af8bf1171171
- Parent:
- 0:eb6507dc4669
- Child:
- 2:3518f7c570de
File content as of revision 1:af8bf1171171:
/* 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), localOutPort(3001), localInPort(3002) { _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") && open(1,localOutPort) && open(2,localInPort); } 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 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", 1, 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(); }