Mbed Client sample for GR-LYCHEE where ZXing is incorporated.

Dependencies:   DisplayApp AsciiFont

Fork of GR-PEACH_mbed-os-client-ZXingSample by Renesas


This sample program shows how to use mbed Client together with ZXing which is an open-source, multi-format 1D/2D barcode image processing library. For more info on ZXing, please refer to https://github.com/zxing/zxing.

Required hardware

Application setup

  1. Select the connection type. For details, please refer to the following wiki:
  2. Set the client credentials. For details, please refer to the following wiki:
  3. Change Wifi settings. For details, please refer to the following wiki:

Building the example

To build this example:

  1. Import this example onto mbed Compiler.
  2. Configure the example in accordance with Application setup.
  3. Compile the example on mbed Compiler and download the resultant binary file.
  4. Plug the micro-USB cable into the OpenSDA port which lies on the next to the RESET button.
  5. Copy the binary previously downloaded to your PC to GR-LYCHEE to flash this example. When the copy is successfully completed, the board is ready to work.
  6. Press the RESET button on the board to run the example.
  7. For verification, please refer to the following wiki:

Application resources

This example exposes four resources listed below:

  1. 3202/0/5700. Decode result of barcode data input from camera (GET).
  2. 3201/0/5850. Blink function, blinks LED when executed (POST).
  3. 3201/0/5853. Blink pattern, used by the blink function to determine how to blink. In the format of 1000:500:1000:500:1000:500 (PUT).
  4. 3201/0/5855. Blink color, used by the blink function. Any of green, yellow, orange and red is acceptable (PUT).


21 months ago

File content as of revision 12:7a199eff6988:

 * Copyright (c) 2016 ARM Limited. All rights reserved.
 * SPDX-License-Identifier: Apache-2.0
 * Licensed under the Apache License, Version 2.0 (the License); you may
 * not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an AS IS BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.

// Defines the number of times client should try re-connection towards
// Server in case of connectivity loss , also defines the number of CoAP
// re-transmission attempts.Default value is 3

// Defines the interval (in seconds) in which client should try re-connection towards
// Server in case of connectivity loss , also use the same interval for CoAP
// re-transmission attempts. Default value is 5 seconds

// Defines the keep-alive interval (in seconds) in which client should send keep alive
// pings to server while connected through TCP mode. Default value is 300 seconds

// Defines the maximum CoAP messages that client can hold, maximum value is 6

// Defines the size of blockwise CoAP messages that client can handle.
// The values that can be defined uust be 2^x and x is at least 4.
// Suitable values: 0, 16, 32, 64, 128, 256, 512 and 1024

// Many pure LWM2M servers doen't accept 'obs' text in registration message.
// While using Client against such servers, this flag can be set to define to
// disable client sending 'obs' text for observable resources.

// Disable Bootstrap functionality in client in order to reduce code size, if bootstrap
// functionality is not required.