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Smart Tracker 2: An Innovative Wire Tracker
The Smart Tracker
2 is a low-cost, compact wire identification device. A 10-channel
transmitter injects test signals into up to 10 wires. A small
probe can be connected between any of the wires to identify
both of them simultaneously, without a ground connection.
The probe also identifies any short circuits between the wires.
The transmitter has 10 outputs—each identified by a different
color—with a small grabber on each end. The outputs, which
are driven by a 68HC908QY4, are connected to one end of the
wires to be identified, in any order. The receiver has two
inputs (red and green) and 10 bicolor red/green LEDs, each
of which is associated with one of the transmitter colors.
The transmitter successively injects a binary word on each
of the 10 outputs using a software-based bit-banging UART
transmitter. The receiver can identify a wire by “listening”
to the input.
Robert Lacoste
France
rlacoste@alciom.com
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