Seeed / Mbed OS pelion-example-common Featured

Specific Pelion ready example using features of Seeed Wio boards including cellular and SD Card

Dependencies:   WS2812 PixelArray

Fork of simple-mbed-cloud-example-wio_3g by Toyomasa Watarai

This example is known to work great on the following platforms:
Seeed Wio 3G and Seeed Wio LTE-M1/NB1(BG96) over cellular and using SD card.

Follow the Quick-Start instructions: https://cloud.mbed.com/quick-start

Example functionality

This example showcases the following device functionality:

• Allow the user to change the state of the board LED from Pelion LWM2M led_state resource and PUT request.

Instructions to use this program with mbed CLI

1. Import the application into your desktop:

mbed import https://os.mbed.com/teams/Seeed/code/pelion-example-common/

cd pelion-example-common

2. Install the CLOUD_SDK_API_KEY

mbed config -G CLOUD_SDK_API_KEY <PELION_DM_API_KEY>

For instructions on how to generate your API key, please see the documentation.

3. Initialize firmware credentials (done once per repository). You can use the following command:

mbed dm init -d "<your company name in Pelion DM>" --model-name "<product model identifier>" -q --force

If above command do not work for your Mbed CLI, please consider upgrading Mbed CLI to version 1.9.x or above.

• Set APN name, username and password in the mbed_app.json.

            "nsapi.default-cellular-plmn"      : "\"00000\"",
            "nsapi.default-cellular-sim-pin"   : "\"0000\"",
            "nsapi.default-cellular-apn"       : "\"apn\"",
            "nsapi.default-cellular-username"  : "\"username\"",
            "nsapi.default-cellular-password"  : "\"password\""

4. Compile and program:

mbed compile -t <toolchain> -m WIO_3G

(supported toolchains : GCC_ARM / ARM / IAR)

Troubleshooting

• Make sure the fields nsapi.default-cellular-sim-pin, nsapi.default-cellular-apn, nsapi.default-cellular-username and nsapi.default-cellular-password from the mbed_app.json file are filled in correctly. The correct values should appear in the user manual in the details of the SIM card.
• Enable trace flag to have access to debug information "mbed-trace.enable": true.
• Try both TCP and UDP socket types.
• Try both "lwip.ppp-enabled": true and "lwip.ppp-enabled": false.
• The modem and network may only support IPv6 in which case "lwip.ipv6-enabled": true shall be defined.
• The SIM and modem must have compatible cellular technology (3G, 4G, NB-IoT, ...) supported and cellular network available.

diff -r ddb04b438959 -r aadfd874279d Wio_LED.h
--- a/Wio_LED.h	Fri Dec 21 02:13:03 2018 +0000
+++ b/Wio_LED.h	Thu Apr 18 13:13:04 2019 +0900
@@ -1,35 +1,35 @@
-#include "WS2812.h"
-#include "PixelArray.h"
-
-#define WS2812_BUF 8
-#define NUM_COLORS 8
-#define NUM_LEDS_PER_COLOR 8
-#define H0 8
-#define L0 32
-#define H1 17
-#define L1 32
-
-DigitalOut LEDPower(PE_8, 1);
-PixelArray px(WS2812_BUF);
-WS2812 ws(PB_1, WS2812_BUF, H0, L0, H1, L1);
-
-const int colorbuf[NUM_COLORS] = {0x000000, 0x2f0000,0x2f2f00,0x002f00,0x002f2f,0x00002f,0x2f002f, 0x2f2f2f};
-
-enum ws2812_color {
-    WS2812_BLACK = 0,
-    WS2812_RED,
-    WS2812_YELLOW,
-    WS2812_GREEN,
-    WS2812_CYAN,
-    WS2812_BLUE,
-    WS2812_PURPLE,
-    WS2812_WHITE
-};
-
-void setcolor(int color)
-{
-    px.Set(0, colorbuf[color]);
-    px.SetI(0, 0x80);
-    ws.write_offsets(px.getBuf(), 0, 0, 0);
-
-}
+#include "WS2812.h"
+#include "PixelArray.h"
+
+#define WS2812_BUF 8
+#define NUM_COLORS 8
+#define NUM_LEDS_PER_COLOR 8
+#define H0 8
+#define L0 32
+#define H1 17
+#define L1 32
+
+enum ws2812_color {
+    WS2812_BLACK = 0,
+    WS2812_RED,
+    WS2812_YELLOW,
+    WS2812_GREEN,
+    WS2812_CYAN,
+    WS2812_BLUE,
+    WS2812_PURPLE,
+    WS2812_WHITE
+};
+
+static DigitalOut LEDPower(PE_8, 1);
+static PixelArray px(WS2812_BUF);
+static WS2812 ws(PB_1, WS2812_BUF, H0, L0, H1, L1);
+
+static const int colorbuf[NUM_COLORS] = {0x000000, 0x2f0000,0x2f2f00,0x002f00,0x002f2f,0x00002f,0x2f002f, 0x2f2f2f};
+
+void setColor(ws2812_color color)
+{
+    px.Set(0, colorbuf[color]);
+    px.SetI(0, 0x80);
+    ws.write_offsets(px.getBuf(), 0, 0, 0);
+}
+