text using only one line 8-dot LED. You can change the speed and text
easily by modifying the source code.
Figure 1: MCS-51
PROPELLER LED.
Hardware
Schematic
The complete hardware
schematic is shown in Figure 2. U1
is the 8-bit microcontroller, 89S52. The 8 LEDs are tied to port P1
driven with sink current. The circuit is operated with +3V Lithium
battery. The board is mounted on the brushless DC motor.
Figure 2: Hardware schematic .
We can test the device easily by spnining it manually. Take a look
below video.
Download
Schematic | SCHEMATIC.pdf |
| C source code | MCS-51 PROPELLER.c |
| Hex file | MCS-51 PROPELLER.hex |
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