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Dependencies: Data_Clock_Pair Seeed_Chainable_LED Seeed_Four_Digit_Disp Seeed_IR_Temp_Sensor Seeed_Led_Bar
Fork of
Seeed_Grove_4_Digit_Display_Clock
by 
Seeed
Diff: SeeedLedBar.h
- Revision:
- 7:b16b9733d859
- Child:
- 12:a16d86fac131
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/SeeedLedBar.h Fri Apr 21 07:34:25 2017 -0600
@@ -0,0 +1,67 @@
+#ifndef SEEED_LED_BAR_H
+#define SEEED_LED_BAR_H
+#include "mbed.h"
+
+class SeeedLedBar {
+ private:
+ DigitalOut datPin_;
+ DigitalOut clkPin_;
+ void pin_delay(int delay_us = 2);
+ static const int glbCmdMode_ = 0x00;
+ void send_sixtn_bits(int sixtnBits);
+ void set_leds(int ledPower[]);
+ public:
+ SeeedLedBar(PinName dataOut, PinName clockOut);
+ void ten_on();
+ void ten_off();
+ void ten_set(int ledPower[]);
+};
+
+SeeedLedBar::SeeedLedBar(PinName dataOut, PinName clockOut) : datPin_(dataOut), clkPin_(clockOut) { }
+
+void SeeedLedBar::pin_delay(int delay_us) {
+ wait_us(delay_us);
+}
+
+void SeeedLedBar::send_sixtn_bits(int sixtnBits) {
+ for (int i = 0; i < 16; i++) {
+ pin_delay();
+ datPin_ = sixtnBits & 0x8000;
+ pin_delay();
+ clkPin_ = !clkPin_;
+ sixtnBits <<= 1;
+ }
+}
+
+void SeeedLedBar::set_leds(int ledPower[]) {
+ send_sixtn_bits(glbCmdMode_);
+ for (int i = 0; i < 10; i++) send_sixtn_bits(ledPower[i]);
+ // Two extra empty bits for padding the command to the correct length
+ send_sixtn_bits(0x00);
+ send_sixtn_bits(0x00);
+ pin_delay();
+ datPin_ = 0;
+ pin_delay();
+ for (int i = 0; i < 4; i++) {
+ pin_delay();
+ datPin_ = 1;
+ pin_delay();
+ datPin_ = 0;
+ }
+}
+
+void SeeedLedBar::ten_on() {
+ int all_on[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
+ set_leds(all_on);
+}
+
+void SeeedLedBar::ten_off() {
+ int all_off[] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
+ set_leds(all_off);
+}
+
+void SeeedLedBar::ten_set(int ledPower[]) {
+ set_leds(ledPower);
+}
+
+#endif