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Saturday, May 6, 2017

Dynamic lights with CMOS integrated

   A few few years ago (in 1995), Tehnium magazine publish an article send by me 😀 (then I was a young student) in nr. 1/1995 (see magazine).
   Schematic was inspired by article from Tehnium anual magazine 1990, but my schematic have extra ligts "games":

   A few time ago (3-4 years) I need a simple schematic for automatic dynamic games without microcontrollers, so I remenber my schematic... but I simplify my schematic as originalm but eliminate useless states, so new schematic is
   I maded the schematic on test board:
   I made few movie with this schematic, in my language, but lights made without language 😇, so, I reccomand you to see at nest movies:
joc de lumini cu 4 canale
joc de lumini cu 4 canale (2)
joc de lumini cu 4 canale (3)
joc de lumini cu 4 canale (4)

Monday, May 1, 2017

Gear Shift Indicator

   For car tunning enthusiastic like my friend George I design a Gear Shift Indicator based on my old article when use just keys, diodes, few resistors and 7-segment display. Now, I use TLE4905L hall sensors instead simple keys (push buttons) and Arduino board.
   Schematic is simple:
  If you upload my GearShift_1.ino sketch, on display you can see:
- P for parking
- 1 for first gear:
- 2 for second gear
- 3 for third gear
- 4 for fourth gear
- 5 go fifth
- 6 for sixth gear
- 0 flashing for reverse gear
- nothing for unknown state:
  You can see George's movie (without sound 😎) named Gear Shift Indicator with first test in workshop: