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
Diff: zxing_lib/zxing/ZXing.h
- Revision:
- 0:eb73febb2bba
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/zxing_lib/zxing/ZXing.h Thu Oct 06 18:00:30 2016 +0900
@@ -0,0 +1,135 @@
+// -*- mode:c++; tab-width:2; indent-tabs-mode:nil; c-basic-offset:2 -*-
+/*
+ * Copyright 2013 ZXing authors All rights reserved.
+ *
+ * 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.
+ */
+#ifndef __ZXING_H_
+#define __ZXING_H_
+
+#define ZXING_ARRAY_LEN(v) ((int)(sizeof(v)/sizeof(v[0])))
+#define ZX_LOG_DIGITS(digits) \
+ ((digits == 8) ? 3 : \
+ ((digits == 16) ? 4 : \
+ ((digits == 32) ? 5 : \
+ ((digits == 64) ? 6 : \
+ ((digits == 128) ? 7 : \
+ (-1))))))
+
+#ifndef ZXING_DEBUG
+#define ZXING_DEBUG 0
+#endif
+
+namespace zxing {
+typedef char byte;
+typedef bool boolean;
+}
+
+#include <limits>
+
+#if defined(_WIN32) || defined(_WIN64)
+
+#include <float.h>
+
+namespace zxing {
+inline bool isnan(float v) {return _isnan(v) != 0;}
+inline bool isnan(double v) {return _isnan(v) != 0;}
+inline float nan() {return std::numeric_limits<float>::quiet_NaN();}
+}
+
+#else
+
+#include <cmath>
+
+namespace zxing {
+#if defined(__ICCARM__) || defined( __CC_ARM ) //
+#else //
+inline bool isnan(float v) {return std::isnan(v);}
+inline bool isnan(double v) {return std::isnan(v);}
+#endif //
+inline float nan() {return std::numeric_limits<float>::quiet_NaN();}
+}
+#endif
+
+#if ZXING_DEBUG
+
+#include <iostream>
+#include <string>
+
+using std::cout;
+using std::cerr;
+using std::endl;
+using std::flush;
+using std::string;
+using std::ostream;
+
+#if ZXING_DEBUG_TIMER
+
+#include <sys/time.h>
+
+namespace zxing {
+
+class DebugTimer {
+public:
+ DebugTimer(char const* string_) : chars(string_) {
+ gettimeofday(&start, 0);
+ }
+
+ DebugTimer(std::string const& string_) : chars(0), string(string_) {
+ gettimeofday(&start, 0);
+ }
+
+ void mark(char const* string) {
+ struct timeval end;
+ gettimeofday(&end, 0);
+ int diff =
+ (end.tv_sec - start.tv_sec)*1000*1000+(end.tv_usec - start.tv_usec);
+
+ cerr << diff << " " << string << '\n';
+ }
+
+ void mark(std::string string) {
+ mark(string.c_str());
+ }
+
+ ~DebugTimer() {
+ if (chars) {
+ mark(chars);
+ } else {
+ mark(string.c_str());
+ }
+ }
+
+private:
+ char const* const chars;
+ std::string string;
+ struct timeval start;
+};
+
+}
+
+#define ZXING_TIME(string) DebugTimer __timer__ (string)
+#define ZXING_TIME_MARK(string) __timer__.mark(string)
+
+#endif
+
+#endif // ZXING_DEBUG
+
+#ifndef ZXING_TIME
+#define ZXING_TIME(string) (void)0
+#endif
+#ifndef ZXING_TIME_MARK
+#define ZXING_TIME_MARK(string) (void)0
+#endif
+
+#endif
