upload test
(1x)PIC16F887A [Microntroller Unit, storage everything and process everything]
(1x)20MHz crystal [clock source for the processor]
(1x) LM317 [power supply for LED, and LED brightness control]
(1x) 10K pot [adjust voltage on the LM317 IC for LED brightess control]
(1x) 220ohm resistor [feedback for LM317 IC operation}
(1x) 78L05 100mA fix 5V regulator [PIC power supply]
(2x) 18pF capacitor [crystal filter]
(3x) SN75468 IC [21 column LED cathod current sink]
(8x) PN2907A [8 row LED anode current source]
(4x) N.O pushbutton [for changing menu and character setup]
(4x) 0.1uF capacitors [filter noise on pusbutton switch]
(1x) 2200uF 10V capacitor [5-voltage line filter]
(1x) 8pair-DIP switch (for change mode from programming the PIC to normal operation and also in future, for cascading multiple board ]
hye..cn i please ask u how to do it? the coding i mean?
misznany87 1 year ago
But if you are still interesting, i still have alot, i mean ALOT of wire LED component etc... that you can build fun project with. They are just collecting dust in my garage and under my bed.
naaglugyaaj 2 years ago
cool, I got a few electrionic learning kit and books with me that my dad brought years ago, but I don't use it anymore..ahaha
I losted all those wires and led.
this is pretty good
jiaoyinyang 2 years ago
I give you 5 stars.
gavincurtis 3 years ago