DCC Schnüfi

Sniffer replica without SMD

    This page presents a replica of the DCC sniffer with DIL components.

    The board is (naturally) slightly larger (94 * 66mm). Therefore a slightly larger TicTac box is required for mounting :-)
    The FTDI RS232RL was omitted, the USB connection is performed with an USB cable TLL-RS232 from FTDI.
    The two additional LED (RES1/RES2) are for future enhancements.

Schematic

    Schematic

Layout


    The ATmega162 is centered on the board, to the left and right side there the two OC 6N136. In the middle you'll find the TTL-232R, at left bottom side the ISP, on the top middle and right side the JTAG jack and trigger input as well as start/stop and reset buttons.

Documents: