Pololu Zumo Shield For Arduino, Руководство пользователя

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Now you effectively have a four-sensor array and analog pins A2 and A3 are available for general-
purpose use. To configure the
ZumoReflectanceSensorArray
object to use this new configuration, call
init
with these arguments:
Alternatively, you could make two
ZumoReflectanceSensorArray
objects, one for the two exterior
sensors and another for the two interior sensors, which might allow for cleaner code, but the drawback
is that you can no longer read all four sensors in parallel with this approach.
If you later decide you want to re-enable those sensors, you can connect across the cut trace with a
wire, or you can use a wire to remap the sensor to a different pin. The following example shows how
you could re-enable the A2 sensor and remap the A3 sensor to pin A5 instead:
To configure the
ZumoReflectanceSensorArray
object to use this remapped configuration, call
init
with these arguments:
Or, if you are not using an I/O line to control the IR emitters:
1
2 byte pins[] = {4, 11, A0, 5};
reflectanceSensors.init(pins, 4);
1
2 byte pins[] = {4, A5, 11, A0, A2, 5};
reflectanceSensors.init(pins, 6);
1
2 byte pins[] = {4, A5, 11, A0, A2, 5};
reflectanceSensors.init(pins, 6, 2000, QTR_NO_EMITTER_PIN);
// 2000 = timeout after 2 ms
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Pololu Zumo Shield for Arduino User’s Guide © 2001–2019 Pololu Corporation
2. Assembly Page 29 of 52