Developing various useful items for model railroad is my hobby.
But sometimes somebody else made something, that is too good to develop it again.
This is one, I found here: http://usuaris.tinet.cat/fmco/home_en.htm
I liked it such that I designed a board for it, and called it GCA204.
Firmware is all available on the network.
There is hardly anything further to describe about it, all is already readable :
on Paco's Official Website.
This board is no longer available.
Look at GCA214 for next development.
# | Item | Part |
---|---|---|
1 | R1 | 33 Ohm |
1 | R3 | 2,2 Ohm 2 Watt |
1 | R4 | 1 Kohm |
1 | R5 | 33 Ohm |
1 | R6 | 220 Ohm |
1 | R7 | 220 Ohm |
1 | R8 | 270 KOhm |
1 | R9 | 33 KOhm |
1 | R10 | 1 KOhm |
1 | R11 | 820 Ohm |
1 | R12 | 10 KOhm |
1 | R13 | 47 KOhm |
1 | R14 | 1 KOhm |
1 | R15 | 47 KOhm |
1 | R16 | 10 KOhm |
1 | R17 | 1 KOhm |
1 | C1 | 100 nF |
1 | C2 | 100 nF |
1 | C3 | Elco 100 uF 16V radial |
1 | C4 | Elco 100 uF 16V radial |
1 | C5 | 22 pF |
1 | C6 | 22 pF |
1 | C8 | 1 nF |
1 | IC1 | PIC16F690 |
1 | IC2 | LM339 |
1 | VR1 | 7805 |
1 | D1 | Diode 1n4148 |
1 | D2 | Diode 1n4148 |
1 | D3 | Diode 1n4148 |
1 | P1 | Trimmer 10 KOhm |
1 | == | pcboard GCA204 |
1 | display | 2x 16 char |
1 | X1 | crystal 8 MHz |
4 | – | 2mm support for display |
4 | == | fasteneers m2x6 for display |
1 | J1 | 4 screw terminal 3,81 mm pitch |
1 | – | 16 pins header + pins for display |