Bot’n Roll ONE A User Assembling Manual
4.2.23. L298 H BRIDGE
The L298N component corresponds to a double H bridge to
drive, independently, each motor of the robot, allowing control
of speed and directon.
This component allows a maximum current of 2A on each H
Bridge for contnuous operaton. For short moments (up to 100
us), it enables a 3A debit for each motor.
Place the L298N on “
U3
”.
4.2.24. INFRARED RECEIVERS
The infrared receivers are sensors that detect infrared light
refected by obstacles. This light is emitted by the infrared
LEDs as a 38 KHz modulated signal, i.e. each LED turns on
and of 38,000 tmes per second! If the LEDs do not emit at
this frequency the infrared receiver sensors will not detect
obstacles.
Two infrared receivers are placed at the
botom
of
the printed circuit board, unlike all the components
already soldered.
Insert the SHARP GP1UX511QS receivers under the
PCB on
IRR1
"
Infra-Red Receiver1
" and
IRR2
, with the
sensors facing outwards as illustrated on fgure 49.
These receivers must be soldered on the top side of
the PCB, opposite to what you have done so far.
©Copyright 2018, SAR - Soluções de Automação e Robótca, Lda.
33
Fig. 50: L298N integrated circuit
Fig. 51 Infrared receivers
Descripton
Component
U3
L298N
Descripton
Component
IRR1
SHARP GP1UX511QS
IRR2
SHARP GP1UX511QS
Summary of Contents for ONE A
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