Retro (electro-pr0n)

Today I stumbled upon a pic (from 2001), while browsing my archived stuff. I know I should rather post it to thereifixedit, but it recalled some “childhood” memories :-).

And yes, you can see it well, the isolator under the circuit is a mousepad :-D.


So, what you see in the picture, is a home made programmer tool, for PIC16F87X microcontrollers. Here is the schema (in it’s original ASCII form), what I’ve used to build it:

                                                  +5V
 15..30V                                           |14
                  +-------+                     +--+--+
V+ ]--|>|---+-----+ 78L05 +--- +5V              | 7407|    
            |     +---+---+                     +--+--+
            |         |                            |7      
            |        GND                          GND
            |     +-------+               A   K
            +-----+ 78L12 +--- +12V ------[LED]------[1k]----GND
                  +---+---+              "Power"
V- ]--- GND           |
                     GND                  A   K
                                Vpp ------[LED]------[1k]----GND
                                       "Activity"
                                                      Vdd
                                                       |14
                          Vdd-[10K]--+       +---------+--------+
                  1|\  2             |     13|                  |
  D0 (2)-----------+  >--------------+-------+ RB7/Data         |
                   |/                |       |                  |
      +5V-[10k]-+                    |       |                  |
                | 12 /|13            |       |    PIC 16C84     |
Busy (11)-------+--<  +--------------+       |     18 pin       |
                     \|                      |    ZIF Socket    |
                           Vdd-[10k]--+      |                  |
                  3|\  4              |    12|                  |
   D1 (3)----------+  >---------------+------+ RB6/Clock        |
                   |/                        |                  |
                                             |                  |
                                            4|                  |
                          Vpp-[180R]---------+ -MCLR/Vpp        |
                                             |                  |
                                             +---------+--------+
                                                       |5
                                            +5V       GND
                                             |
                                  +--[10K]---+
                                  |          |
                 11|\  10         |      B |/ E
   D3 (5)----------+  >----[10K]--+--------|     PNP (BC212)
                   |/                      |\ C
                                             |
                                             +---Vdd
                                             |
                                           [10K]
                                             |
                                            GND
              
                                            +12V
                                             |
                                  +--[10K]---+
                                  |          |
                  9|\  8          |      B |/ E
   D2 (4)----------+  >----[10K]--+--------|     PNP (BC212)
                   |/                      |\ C
                                             |
                                             +---Vpp
  GND (19)------GND                          |
                                           [10K]
                                             |
                                            GND
-----------------------------------------------------------------

I’ve used Brian C Lane’s programmer and David Tait’s stuff with some modifications to work under linux. I’ve created a kernel modul for it also. Fun old times :-D.

Currently the tool is “merged” into an art project of a friend of mine:

“Electric jungle”:

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