Peng Jing Xuan / Mbed OS MQTT_PM25

MQTT_PM25

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

README.md@58:8d4bde75ebb9, 2018-02-27 (annotated)

Committer:
adustm
Date:
Tue Feb 27 14:07:49 2018 +0100
Revision:
58:8d4bde75ebb9
Parent:
57:c8c960b825f0 
Add DISCO_F413ZH (using ism43362 driver)

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 49:d44cac40bf15 3 Wi-Fi example for Mbed OS
mbed_official 0:857719181846 4
mbed_official 49:d44cac40bf15 5 ## Getting started with the Wi-Fi API ##
mbed_official 0:857719181846 6
mbed_official 49:d44cac40bf15 7 This is an example of a Wi-Fi application using the Wi-Fi and network socket APIs that [Mbed OS](https://github.com/ARMmbed/mbed-os) provides.
mbed_official 0:857719181846 8
mbed_official 49:d44cac40bf15 9 The program brings up the Wi-Fi and the underlying network interface and uses it to scan available networks, connects to a network, prints interface and connection details and performs an HTTP operation.
mbed_official 49:d44cac40bf15 10
mbed_official 49:d44cac40bf15 11 For more information about Wi-Fi APIs, please visit the [Mbed OS Wi-Fi](https://os.mbed.com/docs/latest/reference/wi-fi.html) documentation.
mbed_official 0:857719181846 12
mbed_official 0:857719181846 13 ### Supported hardware ###
mbed_official 0:857719181846 14
mbed_official 49:d44cac40bf15 15 * [NUCLEO-F401RE](https://os.mbed.com/platforms/ST-Nucleo-F401RE/) with [X-NUCLEO-IDW04A1](http://www.st.com/content/st_com/en/products/ecosystems/stm32-open-development-environment/stm32-nucleo-expansion-boards/stm32-ode-connect-hw/x-nucleo-idw04a1.html) Wi-Fi expansion board using pins D8 and D2 _(of the Arduino connector)_.
mbed_official 49:d44cac40bf15 16 * [NUCLEO-F401RE](https://os.mbed.com/platforms/ST-Nucleo-F401RE/) with [X-NUCLEO-IDW01M1](https://os.mbed.com/components/X-NUCLEO-IDW01M1/) Wi-Fi expansion board using pins PA_9 and PA_10 _(of the Morpho connector)_.
adustm adustm@gmail.com 55:23a0d1e8270a 17 * [DISCO_L475VG_IOT01A](https://os.mbed.com/platforms/ST-Discovery-L475E-IOT01A/) with ISM43362 built-in module
adustm 58:8d4bde75ebb9 18 * [DISCO_F413ZH](https://os.mbed.com/platforms/ST-Discovery-F413H/) with ISM43362 built-in module
adustm 57:c8c960b825f0 19 * Other Mbed targets with [X-NUCLEO-IDW04A1](http://www.st.com/content/st_com/en/products/ecosystems/stm32-open-development-environment/stm32-nucleo-expansion-boards/stm32-ode-connect-hw/x-nucleo-idw04a1.html) or [X-NUCLEO-IDW01M1](https://os.mbed.com/components/X-NUCLEO-IDW01M1/) expansion board.
mbed_official 49:d44cac40bf15 20 *(The Mbed target board the Wi-Fi shield connects to shouldn't have any other network interface, for example Ethernet.)*
mbed_official 0:857719181846 21
mbed_official 44:63be19b7a3db 22 #### Connecting the X-NUCLEO-IDW0XX1 ####
mbed_official 49:d44cac40bf15 23
mbed_official 49:d44cac40bf15 24 To connect the [X-NUCLEO-IDW04A1](http://www.st.com/content/st_com/en/products/ecosystems/stm32-open-development-environment/stm32-nucleo-expansion-boards/stm32-ode-connect-hw/x-nucleo-idw04a1.html) or [X-NUCLEO-IDW01M1](https://developer.mbed.org/components/X-NUCLEO-IDW01M1/) expansion board to your NUCLEO development board, plug the expansion board on top of the NUCLEO board using the Arduino or Morpho connector.
mbed_official 6:9944c5308062 25
mbed_official 44:63be19b7a3db 26 ## Getting started ##
mbed_official 0:857719181846 27
mbed_official 49:d44cac40bf15 28 1. Import the example.
mbed_official 0:857719181846 29
mbed_official 32:bca3f5f442b3 30 ```
mbed_official 32:bca3f5f442b3 31 mbed import mbed-os-example-wifi
mbed_official 32:bca3f5f442b3 32 cd mbed-os-example-wifi
mbed_official 32:bca3f5f442b3 33 ```
mbed_official 49:d44cac40bf15 34
mbed_official 49:d44cac40bf15 35 2. Configure the Wi-Fi shield to use.
mbed_official 0:857719181846 36
mbed_official 49:d44cac40bf15 37 Edit ```mbed_app.json``` to include the correct Wi-Fi shield, SSID and password:
mbed_official 0:857719181846 38
mbed_official 32:bca3f5f442b3 39 ```
mbed_official 33:12f0df4d51d7 40 "config": {
mbed_official 32:bca3f5f442b3 41 "wifi-shield": {
adustm 57:c8c960b825f0 42 "help": "Options are WIFI_IDW0XX1",
adustm 57:c8c960b825f0 43 "value": "WIFI_IDW0XX1"
mbed_official 32:bca3f5f442b3 44 },
mbed_official 32:bca3f5f442b3 45 "wifi-ssid": {
mbed_official 32:bca3f5f442b3 46 "help": "WiFi SSID",
mbed_official 32:bca3f5f442b3 47 "value": "\"SSID\""
mbed_official 32:bca3f5f442b3 48 },
mbed_official 32:bca3f5f442b3 49 "wifi-password": {
mbed_official 32:bca3f5f442b3 50 "help": "WiFi Password",
mbed_official 32:bca3f5f442b3 51 "value": "\"Password\""
mbed_official 32:bca3f5f442b3 52 }
mbed_official 32:bca3f5f442b3 53 },
mbed_official 32:bca3f5f442b3 54 ```
mbed_official 0:857719181846 55
adustm 58:8d4bde75ebb9 56 Sample ```mbed_app.json``` files are provided for X-NUCLEO-IDW04A1 (```mbed_app_idw04a1.json```), X-NUCLEO-IDW01M1 (```mbed_app_idw01m1```), DISCO_L475VG_IOT01A/ISM43362 (```mbed_app_ism43362.json```) and DISCO_F413ZH/ISM43362 (```mbed_app_ism43362.json```)
mbed_official 44:63be19b7a3db 57
mbed_official 49:d44cac40bf15 58 For built-in Wi-Fi, ignore the value of `wifi-shield`.
mbed_official 33:12f0df4d51d7 59
mbed_official 49:d44cac40bf15 60 3. Compile and generate binary.
mbed_official 0:857719181846 61
mbed_official 32:bca3f5f442b3 62 For example, for `GCC`:
mbed_official 32:bca3f5f442b3 63
mbed_official 32:bca3f5f442b3 64 ```
mbed_official 32:bca3f5f442b3 65 mbed compile -t GCC_ARM -m UBLOX_EVK_ODIN_W2
mbed_official 32:bca3f5f442b3 66 ```
mbed_official 36:aa0b6789bbd2 67
mbed_official 44:63be19b7a3db 68 4. Open a serial console session with the target platform using the following parameters:
mbed_official 49:d44cac40bf15 69
mbed_official 36:aa0b6789bbd2 70 * **Baud rate:** 9600
mbed_official 36:aa0b6789bbd2 71 * **Data bits:** 8
mbed_official 36:aa0b6789bbd2 72 * **Stop bits:** 1
mbed_official 36:aa0b6789bbd2 73 * **Parity:** None
mbed_official 36:aa0b6789bbd2 74
mbed_official 44:63be19b7a3db 75 5. Copy or drag the application `mbed-os-example-wifi.bin` in the folder `mbed-os-example-wifi/BUILD/<TARGET NAME>/<PLATFORM NAME>` onto the target board.
mbed_official 36:aa0b6789bbd2 76
mbed_official 49:d44cac40bf15 77 6. The serial console should display a similar output to below, indicating a successful Wi-Fi connection:
mbed_official 49:d44cac40bf15 78
mbed_official 36:aa0b6789bbd2 79 ```
mbed_official 36:aa0b6789bbd2 80 WiFi example
mbed_official 36:aa0b6789bbd2 81
mbed_official 36:aa0b6789bbd2 82 Scan:
mbed_official 36:aa0b6789bbd2 83 Network: Dave Hot Spot secured: Unknown BSSID: 00:01:02:03:04:05 RSSI: -58 Ch: 1
mbed_official 36:aa0b6789bbd2 84 1 network available.
mbed_official 36:aa0b6789bbd2 85
mbed_official 36:aa0b6789bbd2 86 Connecting...
mbed_official 36:aa0b6789bbd2 87 Success
mbed_official 36:aa0b6789bbd2 88
mbed_official 36:aa0b6789bbd2 89 MAC: 00:01:02:03:04:05
mbed_official 36:aa0b6789bbd2 90 IP: 192.168.0.5
mbed_official 36:aa0b6789bbd2 91 Netmask: 255.255.255.0
mbed_official 36:aa0b6789bbd2 92 Gateway: 192.168.0.1
mbed_official 36:aa0b6789bbd2 93 RSSI: -27
mbed_official 36:aa0b6789bbd2 94
mbed_official 36:aa0b6789bbd2 95 Sending HTTP request to www.arm.com...
mbed_official 36:aa0b6789bbd2 96 sent 38 [GET / HTTP/1.1]
mbed_official 36:aa0b6789bbd2 97 recv 64 [HTTP/1.1 301 Moved Permanently]
mbed_official 36:aa0b6789bbd2 98
mbed_official 36:aa0b6789bbd2 99 Done
mbed_official 36:aa0b6789bbd2 100 ```
mbed_official 0:857719181846 101
mbed_official 49:d44cac40bf15 102 ## Troubleshooting
mbed_official 0:857719181846 103
mbed_official 49:d44cac40bf15 104 If you have problems, you can review the [documentation](https://os.mbed.com/docs/latest/tutorials/debugging.html) for suggestions on what could be wrong and how to fix it.