Simple demo with GPIO MQTT protocol test on STM32 broker tests.mosquitto.org WIFI interface ESP8266 Issue of topic0 by pressing the button If reception of ', switching of the led If received from 'q' end of program
This is a MQTT protocol test on STM32 NUCLEO The broker is tests.mosquitto.org The WIFI interface is ESP8266
For configuration please check mbed_app.json and #define in main.cpp
Issue of topic0 by pressing the button If received 'l' from broker then switching of the led If received 'q' from broker then end the program
Information and debug with a terminal using UART over USB
This test has been checked with MQTT.fx
MQTTNetwork.h@21:a68bd76740f9, 2017-09-07 (annotated)
- Committer:
- Jan Jongboom
- Date:
- Thu Sep 07 10:06:22 2017 +0100
- Revision:
- 21:a68bd76740f9
- Parent:
- 20:49c9daf2b0ff
changeset: 21:6ab7c0b84d9e
tag: tip
user: Jan Jongboom <janjongboom@gmail.com>
date: Thu Sep 07 10:02:29 2017 +0100
summary: Update to mbed OS 5.5.6
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Jan Jongboom |
20:49c9daf2b0ff | 1 | #ifndef _MQTTNETWORK_H_ |
Jan Jongboom |
20:49c9daf2b0ff | 2 | #define _MQTTNETWORK_H_ |
Jan Jongboom |
20:49c9daf2b0ff | 3 | |
Jan Jongboom |
20:49c9daf2b0ff | 4 | #include "NetworkInterface.h" |
Jan Jongboom |
20:49c9daf2b0ff | 5 | |
Jan Jongboom |
20:49c9daf2b0ff | 6 | class MQTTNetwork { |
Jan Jongboom |
20:49c9daf2b0ff | 7 | public: |
Jan Jongboom |
20:49c9daf2b0ff | 8 | MQTTNetwork(NetworkInterface* aNetwork) : network(aNetwork) { |
Jan Jongboom |
20:49c9daf2b0ff | 9 | socket = new TCPSocket(); |
Jan Jongboom |
20:49c9daf2b0ff | 10 | } |
Jan Jongboom |
20:49c9daf2b0ff | 11 | |
Jan Jongboom |
20:49c9daf2b0ff | 12 | ~MQTTNetwork() { |
Jan Jongboom |
20:49c9daf2b0ff | 13 | delete socket; |
Jan Jongboom |
20:49c9daf2b0ff | 14 | } |
Jan Jongboom |
20:49c9daf2b0ff | 15 | |
Jan Jongboom |
20:49c9daf2b0ff | 16 | int read(unsigned char* buffer, int len, int timeout) { |
Jan Jongboom |
20:49c9daf2b0ff | 17 | return socket->recv(buffer, len); |
Jan Jongboom |
20:49c9daf2b0ff | 18 | } |
Jan Jongboom |
20:49c9daf2b0ff | 19 | |
Jan Jongboom |
20:49c9daf2b0ff | 20 | int write(unsigned char* buffer, int len, int timeout) { |
Jan Jongboom |
20:49c9daf2b0ff | 21 | return socket->send(buffer, len); |
Jan Jongboom |
20:49c9daf2b0ff | 22 | } |
Jan Jongboom |
20:49c9daf2b0ff | 23 | |
Jan Jongboom |
20:49c9daf2b0ff | 24 | int connect(const char* hostname, int port) { |
Jan Jongboom |
20:49c9daf2b0ff | 25 | socket->open(network); |
Jan Jongboom |
20:49c9daf2b0ff | 26 | return socket->connect(hostname, port); |
Jan Jongboom |
20:49c9daf2b0ff | 27 | } |
Jan Jongboom |
20:49c9daf2b0ff | 28 | |
Jan Jongboom |
21:a68bd76740f9 | 29 | int disconnect() { |
Jan Jongboom |
21:a68bd76740f9 | 30 | return socket->close(); |
Jan Jongboom |
20:49c9daf2b0ff | 31 | } |
Jan Jongboom |
20:49c9daf2b0ff | 32 | |
Jan Jongboom |
20:49c9daf2b0ff | 33 | private: |
Jan Jongboom |
20:49c9daf2b0ff | 34 | NetworkInterface* network; |
Jan Jongboom |
20:49c9daf2b0ff | 35 | TCPSocket* socket; |
Jan Jongboom |
20:49c9daf2b0ff | 36 | }; |
Jan Jongboom |
20:49c9daf2b0ff | 37 | |
Jan Jongboom |
20:49c9daf2b0ff | 38 | #endif // _MQTTNETWORK_H_ |