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ESP8266.cpp@3:72756a2b1a87, 2018-06-27 (annotated)
- Committer:
- nikitoslav
- Date:
- Wed Jun 27 13:43:43 2018 +0000
- Revision:
- 3:72756a2b1a87
- Parent:
- 2:3518f7c570de
- Child:
- 4:d53cfe3998bc
4 recv only on 2d linkId
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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nikitoslav | 0:eb6507dc4669 | 1 | /* ESP8266 Example |
nikitoslav | 0:eb6507dc4669 | 2 | * Copyright (c) 2015 ARM Limited |
nikitoslav | 0:eb6507dc4669 | 3 | * |
nikitoslav | 0:eb6507dc4669 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
nikitoslav | 0:eb6507dc4669 | 5 | * you may not use this file except in compliance with the License. |
nikitoslav | 0:eb6507dc4669 | 6 | * You may obtain a copy of the License at |
nikitoslav | 0:eb6507dc4669 | 7 | * |
nikitoslav | 0:eb6507dc4669 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
nikitoslav | 0:eb6507dc4669 | 9 | * |
nikitoslav | 0:eb6507dc4669 | 10 | * Unless required by applicable law or agreed to in writing, software |
nikitoslav | 0:eb6507dc4669 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
nikitoslav | 0:eb6507dc4669 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
nikitoslav | 0:eb6507dc4669 | 13 | * See the License for the specific language governing permissions and |
nikitoslav | 0:eb6507dc4669 | 14 | * limitations under the License. |
nikitoslav | 0:eb6507dc4669 | 15 | */ |
nikitoslav | 0:eb6507dc4669 | 16 | |
nikitoslav | 0:eb6507dc4669 | 17 | #include "ESP8266.h" |
nikitoslav | 0:eb6507dc4669 | 18 | |
nikitoslav | 2:3518f7c570de | 19 | ESP8266::ESP8266(PinName tx, PinName rx, int locOutPort, int locInPort, bool debug) |
nikitoslav | 2:3518f7c570de | 20 | : _serial(tx, rx, 1024), _parser(_serial), |
nikitoslav | 2:3518f7c570de | 21 | localOutPort(locOutPort), localInPort(locInPort) { |
nikitoslav | 0:eb6507dc4669 | 22 | _serial.baud(115200); |
nikitoslav | 0:eb6507dc4669 | 23 | _parser.debugOn(debug); |
nikitoslav | 0:eb6507dc4669 | 24 | } |
nikitoslav | 0:eb6507dc4669 | 25 | |
nikitoslav | 0:eb6507dc4669 | 26 | bool ESP8266::startup(int mode) { |
nikitoslav | 0:eb6507dc4669 | 27 | if(mode < 1 || mode > 3) { |
nikitoslav | 0:eb6507dc4669 | 28 | return false; |
nikitoslav | 0:eb6507dc4669 | 29 | } |
nikitoslav | 0:eb6507dc4669 | 30 | |
nikitoslav | 0:eb6507dc4669 | 31 | return reset() |
nikitoslav | 0:eb6507dc4669 | 32 | && _parser.send("AT+CWMODE_CUR=%d", mode) |
nikitoslav | 0:eb6507dc4669 | 33 | && _parser.recv("OK") |
nikitoslav | 0:eb6507dc4669 | 34 | && _parser.send("AT+CIPMUX=1") |
nikitoslav | 0:eb6507dc4669 | 35 | && _parser.recv("OK") |
nikitoslav | 0:eb6507dc4669 | 36 | && _parser.send("AT+CIPDINFO=1") |
nikitoslav | 0:eb6507dc4669 | 37 | && _parser.recv("OK"); |
nikitoslav | 0:eb6507dc4669 | 38 | } |
nikitoslav | 0:eb6507dc4669 | 39 | |
nikitoslav | 0:eb6507dc4669 | 40 | bool ESP8266::reset(void) { |
nikitoslav | 0:eb6507dc4669 | 41 | for (int i = 0; i < 2; i++) { |
nikitoslav | 0:eb6507dc4669 | 42 | if (_parser.send("AT+RST") |
nikitoslav | 0:eb6507dc4669 | 43 | && _parser.recv("OK\r\nready")) { |
nikitoslav | 0:eb6507dc4669 | 44 | return true; |
nikitoslav | 0:eb6507dc4669 | 45 | } |
nikitoslav | 0:eb6507dc4669 | 46 | } |
nikitoslav | 0:eb6507dc4669 | 47 | |
nikitoslav | 0:eb6507dc4669 | 48 | return false; |
nikitoslav | 0:eb6507dc4669 | 49 | } |
nikitoslav | 0:eb6507dc4669 | 50 | |
nikitoslav | 0:eb6507dc4669 | 51 | bool ESP8266::connect(const char *ap, const char *passPhrase) { |
nikitoslav | 0:eb6507dc4669 | 52 | return _parser.send("AT+CWJAP_CUR=\"%s\",\"%s\"", ap, passPhrase) |
nikitoslav | 1:af8bf1171171 | 53 | && _parser.recv("OK") |
nikitoslav | 1:af8bf1171171 | 54 | && open(1,localOutPort) |
nikitoslav | 1:af8bf1171171 | 55 | && open(2,localInPort); |
nikitoslav | 0:eb6507dc4669 | 56 | } |
nikitoslav | 0:eb6507dc4669 | 57 | |
nikitoslav | 0:eb6507dc4669 | 58 | bool ESP8266::disconnect(void) { |
nikitoslav | 0:eb6507dc4669 | 59 | return _parser.send("AT+CWQAP") && _parser.recv("OK"); |
nikitoslav | 0:eb6507dc4669 | 60 | } |
nikitoslav | 0:eb6507dc4669 | 61 | |
nikitoslav | 0:eb6507dc4669 | 62 | char* ESP8266::getIPAddress(void) { |
nikitoslav | 0:eb6507dc4669 | 63 | if (!(_parser.send("AT+CIFSR") |
nikitoslav | 0:eb6507dc4669 | 64 | && _parser.recv("+CIFSR:STAIP,\"%[^\"]\"", _ip_buffer) |
nikitoslav | 0:eb6507dc4669 | 65 | && _parser.recv("OK"))) { |
nikitoslav | 0:eb6507dc4669 | 66 | return 0; |
nikitoslav | 0:eb6507dc4669 | 67 | } |
nikitoslav | 0:eb6507dc4669 | 68 | |
nikitoslav | 0:eb6507dc4669 | 69 | return _ip_buffer; |
nikitoslav | 0:eb6507dc4669 | 70 | } |
nikitoslav | 0:eb6507dc4669 | 71 | |
nikitoslav | 0:eb6507dc4669 | 72 | const char* ESP8266::getMACAddress(void) { |
nikitoslav | 0:eb6507dc4669 | 73 | if (!(_parser.send("AT+CIFSR") |
nikitoslav | 0:eb6507dc4669 | 74 | && _parser.recv("+CIFSR:STAMAC,\"%[^\"]\"", _mac_buffer) |
nikitoslav | 0:eb6507dc4669 | 75 | && _parser.recv("OK"))) { |
nikitoslav | 0:eb6507dc4669 | 76 | return 0; |
nikitoslav | 0:eb6507dc4669 | 77 | } |
nikitoslav | 0:eb6507dc4669 | 78 | |
nikitoslav | 0:eb6507dc4669 | 79 | return _mac_buffer; |
nikitoslav | 0:eb6507dc4669 | 80 | } |
nikitoslav | 0:eb6507dc4669 | 81 | |
nikitoslav | 0:eb6507dc4669 | 82 | bool ESP8266::isConnected(void) { |
nikitoslav | 0:eb6507dc4669 | 83 | return getIPAddress() != 0; |
nikitoslav | 0:eb6507dc4669 | 84 | } |
nikitoslav | 0:eb6507dc4669 | 85 | |
nikitoslav | 0:eb6507dc4669 | 86 | bool ESP8266::open(int linkId, int localPort) { |
nikitoslav | 0:eb6507dc4669 | 87 | return _parser.send("AT+CIPSTART=%d,\"%s\",\"%s\",%d,%d,%d", linkId, "UDP","192.168.0.0",49000, localPort, 2) |
nikitoslav | 0:eb6507dc4669 | 88 | && _parser.recv("OK"); |
nikitoslav | 0:eb6507dc4669 | 89 | } |
nikitoslav | 0:eb6507dc4669 | 90 | |
nikitoslav | 1:af8bf1171171 | 91 | bool ESP8266::send(const void* data, uint32_t amount, const char* addr, int port) { |
nikitoslav | 0:eb6507dc4669 | 92 | //May take a second try if device is busy |
nikitoslav | 0:eb6507dc4669 | 93 | for (unsigned i = 0; i < 2; i++) { |
nikitoslav | 1:af8bf1171171 | 94 | if (_parser.send("AT+CIPSEND=%d,%d,\"%s\",%d", 1, amount, addr, port) |
nikitoslav | 0:eb6507dc4669 | 95 | && _parser.recv(">") |
nikitoslav | 0:eb6507dc4669 | 96 | && (_parser.write((char*)data, (int)amount) >= 0) |
nikitoslav | 0:eb6507dc4669 | 97 | && _parser.recv("SEND OK")) { |
nikitoslav | 0:eb6507dc4669 | 98 | return true; |
nikitoslav | 0:eb6507dc4669 | 99 | } |
nikitoslav | 0:eb6507dc4669 | 100 | } |
nikitoslav | 0:eb6507dc4669 | 101 | |
nikitoslav | 0:eb6507dc4669 | 102 | return false; |
nikitoslav | 0:eb6507dc4669 | 103 | } |
nikitoslav | 0:eb6507dc4669 | 104 | |
nikitoslav | 0:eb6507dc4669 | 105 | int32_t ESP8266::recv(void *data, uint32_t amount, char* IP, int* port) { |
nikitoslav | 0:eb6507dc4669 | 106 | uint32_t linkId; |
nikitoslav | 0:eb6507dc4669 | 107 | uint32_t recv_amount; |
nikitoslav | 0:eb6507dc4669 | 108 | |
nikitoslav | 0:eb6507dc4669 | 109 | if (!(_parser.recv("+IPD,%d,%d,%[^\,],%d:", &linkId, &recv_amount, IP, port) |
nikitoslav | 3:72756a2b1a87 | 110 | && linkId == 2 |
nikitoslav | 0:eb6507dc4669 | 111 | && recv_amount <= amount |
nikitoslav | 0:eb6507dc4669 | 112 | && _parser.read((char*)data, recv_amount))) { |
nikitoslav | 0:eb6507dc4669 | 113 | return -1; |
nikitoslav | 0:eb6507dc4669 | 114 | } |
nikitoslav | 0:eb6507dc4669 | 115 | |
nikitoslav | 0:eb6507dc4669 | 116 | return recv_amount; |
nikitoslav | 0:eb6507dc4669 | 117 | } |
nikitoslav | 0:eb6507dc4669 | 118 | |
nikitoslav | 0:eb6507dc4669 | 119 | bool ESP8266::close(int id) { |
nikitoslav | 0:eb6507dc4669 | 120 | //May take a second try if device is busy |
nikitoslav | 0:eb6507dc4669 | 121 | for (unsigned i = 0; i < 2; i++) { |
nikitoslav | 0:eb6507dc4669 | 122 | if (_parser.send("AT+CIPCLOSE=%d", id) |
nikitoslav | 0:eb6507dc4669 | 123 | && _parser.recv("OK")) { |
nikitoslav | 0:eb6507dc4669 | 124 | return true; |
nikitoslav | 0:eb6507dc4669 | 125 | } |
nikitoslav | 0:eb6507dc4669 | 126 | } |
nikitoslav | 0:eb6507dc4669 | 127 | |
nikitoslav | 0:eb6507dc4669 | 128 | return false; |
nikitoslav | 0:eb6507dc4669 | 129 | } |
nikitoslav | 0:eb6507dc4669 | 130 | |
nikitoslav | 0:eb6507dc4669 | 131 | void ESP8266::setTimeout(uint32_t timeout_ms) { |
nikitoslav | 0:eb6507dc4669 | 132 | _parser.setTimeout(timeout_ms); |
nikitoslav | 0:eb6507dc4669 | 133 | } |
nikitoslav | 0:eb6507dc4669 | 134 | |
nikitoslav | 0:eb6507dc4669 | 135 | bool ESP8266::readable() { |
nikitoslav | 0:eb6507dc4669 | 136 | return _serial.readable(); |
nikitoslav | 0:eb6507dc4669 | 137 | } |
nikitoslav | 0:eb6507dc4669 | 138 | |
nikitoslav | 0:eb6507dc4669 | 139 | bool ESP8266::writeable() { |
nikitoslav | 0:eb6507dc4669 | 140 | return _serial.writeable(); |
nikitoslav | 0:eb6507dc4669 | 141 | } |
nikitoslav | 0:eb6507dc4669 | 142 |