This is a mbed Client sample where ZXing is incorporated, and works on GR-PEACH and GR-LYCHEE.
Dependencies: DisplayApp AsciiFont
Overview
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
- GR-PEACH ( https://developer.mbed.org/platforms/Renesas-GR-PEACH/ )
- Audio Camera Shield ( https://developer.mbed.org/teams/Renesas/wiki/Audio_Camera-shield )
- LCD Shield ( https://developer.mbed.org/teams/Renesas/wiki/LCD-shield )
- Ethernet cable and connection to the internet
- Wireless Camera shieled (This is GR-PEACH' Wifi(ESP32) optional.)
- GR-LYCHEE ( https://developer.mbed.org/platforms/Renesas-GR-LYCHEE/ )
Application setup
- Select the connection type. For details, please refer to the following wiki:
https://os.mbed.com/teams/Renesas/code/GR-PEACH_mbed-os-client-ZXingSample/wiki/Connection-type. - Set the client credentials. For details, please refer to the following wiki:
https://os.mbed.com/teams/Renesas/code/GR-PEACH_mbed-os-client-ZXingSample/wiki/Client-credentials. - Change Ethernet settings. For details, please refer to the following wiki:
https://developer.mbed.org/teams/Renesas/code/GR-PEACH_mbed-os-client-ZXingSample/wiki/Ethernet-settings. - Change Wifi settings. For details, please refer to the following wiki:
https://os.mbed.com/teams/Renesas/code/GR-PEACH_mbed-os-client-ZXingSample/wiki/Wifi-settings. - Set up an IP address. (This step is optional.) For details, please refer to the following wiki:
https://os.mbed.com/teams/Renesas/code/GR-PEACH_mbed-os-client-ZXingSample/wiki/IP-address-setup.
Building the example
To build this example:
- Import this example onto mbed Compiler.
- Configure the example in accordance with Application setup.
- Compile the example on mbed Compiler and download the resultant binary file.
- Plug the Ethernet cable into GR-PEACH or GR-LYCHEE if you are using Ethernet mode.
- Plug the micro-USB cable into the OpenSDA port which lies on the next to the RESET button.
- Copy the binary previously downloaded to your PC to GR-PEACH or GR-LYCHEE to flash this example. When the copy is successfully completed, the board is ready to work.
- Press the RESET button on the board to run the example.
- For verification, please refer to the following wiki:
https://developer.mbed.org/teams/Renesas/code/GR-PEACH_mbed-os-client-ZXingSample/wiki/Monitoring-the-application.
Application resources
This example exposes four resources listed below:
- 3202/0/5700. Decode result of barcode data input from camera (GET).
- 3201/0/5850. Blink function, blinks LED when executed (POST).
- 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).
- 3201/0/5855. Blink color, used by the blink function. Any of red, green, blue, cyan, yellow and magenta is acceptable if you are using GR-PEACH board (PUT).
- 3201/0/5855. Blink color, used by the blink function. Any of green, yellow, orange and red is acceptable if you are using GR-LYCHEE board (PUT).
For more info on how to get notifications when resource 1 changes, or how to use resource 2, 3 and 4, please look at
Import programGR-PEACH_mbed-connector-ZXingSample-node
Node.js based Web Application for mbed Device Connector specific to GR-PEACH_mbed-os-client-ZXingSample
zxing_lib/ImageReaderSource.h
- Committer:
- 1050186
- Date:
- 2017-04-17
- Revision:
- 5:6b6540e303f2
- Parent:
- 2:6ec5c1c1d41c
File content as of revision 5:6b6540e303f2:
// -*- mode:c++; tab-width:2; indent-tabs-mode:nil; c-basic-offset:2 -*- #ifndef __IMAGE_READER_SOURCE_H_ #define __IMAGE_READER_SOURCE_H_ /* * Copyright 2010-2011 ZXing authors * * 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. */ #include "mbed.h" #include <iostream> #include <fstream> #include <string> #include <zxing/LuminanceSource.h> #include <zxing/common/Counted.h> #include <zxing/Binarizer.h> #include <zxing/MultiFormatReader.h> #include <zxing/Result.h> #include <zxing/ReaderException.h> #include <zxing/common/GlobalHistogramBinarizer.h> #include <zxing/common/HybridBinarizer.h> #include <exception> #include <zxing/Exception.h> #include <zxing/common/IllegalArgumentException.h> #include <zxing/BinaryBitmap.h> #include <zxing/DecodeHints.h> #include <zxing/qrcode/QRCodeReader.h> #include <zxing/multi/qrcode/QRCodeMultiReader.h> #include <zxing/multi/ByQuadrantReader.h> #include <zxing/multi/MultipleBarcodeReader.h> #include <zxing/multi/GenericMultipleBarcodeReader.h> using std::string; using std::ostringstream; using zxing::Ref; using zxing::ArrayRef; using zxing::LuminanceSource; using namespace std; using namespace zxing; using namespace zxing::multi; using namespace zxing::qrcode; class ImageReaderSource : public zxing::LuminanceSource { private: typedef LuminanceSource Super; const zxing::ArrayRef<char> image; const int comps; char convertPixel(const char* pixel) const; public: static zxing::Ref<LuminanceSource> create(char* buf, int buf_size, int width, int height); ImageReaderSource(zxing::ArrayRef<char> image, int width, int height, int comps); zxing::ArrayRef<char> getRow(int y, zxing::ArrayRef<char> row) const; zxing::ArrayRef<char> getMatrix() const; }; extern int ex_decode(uint8_t* buf, int buf_size, int width, int height, vector<Ref<Result> > * results, DecodeHints &hints); #endif /* __IMAGE_READER_SOURCE_H_ */