Diff: Circular_LED.h

Revision:

1:30d1850db92a

Parent:

0:edcb13b58b4f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Circular_LED.h	Fri Jun 16 16:09:25 2017 +0000
@@ -0,0 +1,82 @@
+/*
+LED bar library V1.0
+2010 Copyright (c) Seeed Technology Inc. All right reserved.
+
+Original Author: LG
+Modify: Loovee, 2014-2-26
+User can choose which Io to be used.
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+*/
+
+#include "mbed.h"
+
+#ifndef Circular_LED_H
+#define Circular_LED_H
+
+#define CMDMODE 0x0000 // Work on 8-bit mode
+#define ON 0x00ff // 8-bit 1 data
+#define SHUT 0x0000 // 8-bit 0 data
+
+/**
+ * The Circular_LED interface
+ */
+class Circular_LED
+{
+
+public:
+    Circular_LED(PinName pinClk, PinName pinDta);
+
+    /**
+     * Set the on/off state for all LEDs based on a bitmap.
+     * @param state The bitmap. For example, if state is 0x05, then led 0 and led 3 will be on, and the others will be off.
+     */
+    void setState(uint32_t state);
+
+    /**
+     * Set level, frm 0 to 24.
+     * @param level Level 0 means all leds off while level 5 means 5led on and the other will off
+     */
+    void setLevel(uint8_t level);
+    
+    /**
+     * Control a single led
+     * @param num which led
+     * @param st  1: on 0: off
+     */
+    void setSingleLed(uint8_t num, bool st);
+
+private:
+    /**
+     * Pin for clock
+     */
+    DigitalOut __pinClk;
+    
+    /**
+     * Pin for data
+     */
+    DigitalOut __pinDta;
+
+    /**
+     * LED State
+     */
+    uint32_t __led_state;
+
+    void send16bitData(uint16_t data);
+    void latchData(void);
+
+};
+
+#endif
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