Added a GPIO to power on/off for external I2C sensor(s) (with LEDs)

Dependencies:   UniGraphic mbed vt100

18-Jun-2018 外部センサの電源オン・オフ機能は下位互換の為に無効になっていました。 この版で再度有効にしました。

Revision:
0:846e2321c637
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/afLib/StatusCommand.h	Fri Apr 13 04:19:23 2018 +0000
@@ -0,0 +1,67 @@
+/**
+ * Copyright 2015 Afero, Inc.
+ *
+ * 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 STATUS_COMMAND_H__
+#define STATUS_COMMAND_H__
+
+#include "mbed.h"
+
+class StatusCommand {
+public:
+
+    StatusCommand();
+
+    StatusCommand(uint16_t bytesToSend);
+
+    ~StatusCommand();
+
+    uint16_t getSize();
+
+    uint16_t getBytes(int *bytes);
+
+    uint8_t calcChecksum();
+
+    void setChecksum(uint8_t checksum);
+
+    uint8_t getChecksum();
+
+    void setAck(bool ack);
+
+    void setBytesToSend(uint16_t bytesToSend);
+
+    uint16_t getBytesToSend();
+
+    void setBytesToRecv(uint16_t bytesToRecv);
+
+    uint16_t getBytesToRecv();
+
+    bool equals(StatusCommand *statusCommand);
+
+    bool isValid();
+
+    void dump();
+
+    void dumpBytes();
+
+private:
+
+    uint8_t     _cmd;
+    uint16_t    _bytesToSend;
+    uint16_t    _bytesToRecv;
+    uint8_t     _checksum;
+};
+
+#endif // STATUS_COMMAND_H__