Peng Jing Xuan / Mbed OS mbed_wifi_MQTT_PM25

mbed_wifi_MQTT_PM25

Dependencies:   mbed-os-example-wifi-DISCO_IOTBOARD_MQTT MQTT

README.md@10:5b5beb106156, 2017-02-07 (annotated)

Committer:
mbed_official
Date:
Tue Feb 07 10:30:06 2017 +0000
Revision:
10:5b5beb106156
Parent:
6:9944c5308062
Child:
22:887649aaedcb
Use mbed_app.json to define wifi pins



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Commit copied from https://github.com/ARMmbed/mbed-os-example-wifi

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 0:857719181846 1 # mbed-os-example-wifi #
mbed_official 0:857719181846 2
mbed_official 0:857719181846 3 WiFi example for mbed OS
mbed_official 0:857719181846 4
mbed_official 0:857719181846 5 ## Getting started with the WiFi API ##
mbed_official 0:857719181846 6
mbed_official 0:857719181846 7 This is a quick example of a simple WiFi application using the WiFi and network-socket APIs that is provided as a part of [mbed-os](github.com/armmbed/mbed-os).
mbed_official 0:857719181846 8
mbed_official 0:857719181846 9 The program brings up the WiFi and the underlying network interface, and uses it to scans available networks, connects to a network, prints interface and connection details and performs simple HTTP operation.
mbed_official 0:857719181846 10
mbed_official 0:857719181846 11 ### Supported hardware ###
mbed_official 0:857719181846 12
mbed_official 10:5b5beb106156 13 * [UBLOX Odin board](https://developer.mbed.org/platforms/ublox-EVK-ODIN-W2/) (`UBLOX_EVK_ODIN_W2` target when using mbed CLI) with ESP8266-01 module using pins D1 D0
mbed_official 10:5b5beb106156 14 * [NUCLEO_F429ZI](https://developer.mbed.org/platforms/ST-Nucleo-F429ZI/) with ESP8266-01 module using pins D1 D0
mbed_official 10:5b5beb106156 15 * [NUCLEO_L476RG](https://developer.mbed.org/platforms/ST-Nucleo-L476RG/) with ESP8266-01 module using pins D8 D2
mbed_official 0:857719181846 16 * Other mbed target with ESP2866 module (Board it's connected to shouldn't have other network interface eg. Ethernet)
mbed_official 0:857719181846 17
mbed_official 0:857719181846 18 ESP2866 is a fallback option and will be used if the build is for unsupported platform.
mbed_official 0:857719181846 19
mbed_official 6:9944c5308062 20 #### Connecting the ESP2866 ####
mbed_official 6:9944c5308062 21
mbed_official 6:9944c5308062 22 ESP module needs to be connected to RX and TX UART pins (+ power and ground) on your target board. That can be achieved using Grove shield or connected directly using jumper wires, please note that not all Arduino form factor boards have UART compatible with the Grove shiled.
mbed_official 6:9944c5308062 23
mbed_official 6:9944c5308062 24 For Grove shield TX has to be connected to D1 and RX to D0.
mbed_official 6:9944c5308062 25
mbed_official 6:9944c5308062 26 Make sure that UART module you're connecting ESP to is different than the debug UART connected to your USB port.
mbed_official 6:9944c5308062 27
mbed_official 0:857719181846 28 ## Getting started
mbed_official 0:857719181846 29
mbed_official 0:857719181846 30 1. Import the example
mbed_official 0:857719181846 31
mbed_official 0:857719181846 32 ```
mbed_official 0:857719181846 33 mbed import mbed-os-example-wifi
mbed_official 0:857719181846 34 cd mbed-os-example-wifi
mbed_official 0:857719181846 35 ```
mbed_official 0:857719181846 36 2. Configure the WiFi credentials
mbed_official 0:857719181846 37
mbed_official 0:857719181846 38 Edit ```mbed_app.json``` to include correct SSID and Password:
mbed_official 0:857719181846 39
mbed_official 0:857719181846 40 ```
mbed_official 0:857719181846 41 "config": {
mbed_official 0:857719181846 42 "wifi-ssid": {
mbed_official 0:857719181846 43 "help": "WiFi SSID",
mbed_official 0:857719181846 44 "value": "\"SSID\""
mbed_official 0:857719181846 45 },
mbed_official 0:857719181846 46 "wifi-password": {
mbed_official 0:857719181846 47 "help": "WiFi Password",
mbed_official 0:857719181846 48 "value": "\"Password\""
mbed_official 0:857719181846 49 }
mbed_official 0:857719181846 50 },
mbed_official 0:857719181846 51 ```
mbed_official 0:857719181846 52
mbed_official 0:857719181846 53 3. Compile and generate binary
mbed_official 0:857719181846 54
mbed_official 0:857719181846 55 For example, for `GCC`:
mbed_official 0:857719181846 56
mbed_official 0:857719181846 57 ```
mbed_official 0:857719181846 58 mbed compile -t GCC_ARM -m UBLOX_EVK_ODIN_W2
mbed_official 0:857719181846 59 ```
mbed_official 0:857719181846 60
mbed_official 0:857719181846 61 ## Documentation ##
mbed_official 0:857719181846 62
mbed_official 0:857719181846 63 More information on the network-socket API can be found in the [mbed handbook](https://docs.mbed.com/docs/mbed-os-api-reference/en/5.2/APIs/communication/network_sockets/).