Freenove Raspberry Pi 2 Model B, Manual

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39 Chapter 0 Raspberry Pi Preparation
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Robot Shield board
: It requires two 18650 3.7v batteries. It has charger function.
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S1(LOAD) Switch:
It mainly controls the power supply of servos, buzzer, ultrasonic module and LED
module. The D1 indicator will light up when S1 is pressed.
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S2(CTRL) Switch:
It mainly controls the power of chips such as PCF9685, ADS7830 and Raspberry Pi. The
D2 indicator will light up when S2 is pressed.
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Type-C port
: It is used to connect cable for charging. It only works when S1 and S2 are turned off.
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LED port
: It is used to connect LED module which is controlled by Raspberry Pi.
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MPU6050 port : It is used to connect MPU6050 which is controlled by Raspberry Pi.
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Battery level indicator
: It consists of four LEDs. When the battery power decreases gradually, the LEDs
will get dimmer gradually
until it’s
turned off.
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IO port
: It is used to connect shield with Raspberry Pi conveniently.
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Servo port : There are 16 servo ports with control accuracy of 0.09 degrees.
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Sonic module port : The interface of HC-SR04 Ultrasound Module is provided.
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Buzzer
: It is directly controlled by raspberry pi, which is turned on at high level and off at low level.
Servo port
Sonar port
Buzzer