This set of Arduino Multiple Choice Questions & Answers focuses on “Adafruit FONA 3G+GPS Breakout”.
1. What is the use of the Adafruit FONA 3G+GPS Breakout?
a) To measure luminosity of something
b) To provide 3G Connectivity
c) To measure temperature
d) To measure Wi-Fi strength
View Answer
Explanation: The Adafruit FONA 3G+GPS Breakout is a module that provides 3G network connectivity for all kinds of embedded systems. It also has provisions for GPS tracking for providing on board geolocation capabilities.
2. Which module enables GPS capabilities to the Adafruit FONA 3G+GPS Breakout?
a) Qualcomm 8015
b) Qualcomm 20111
c) Qualcomm 234
d) Qualcomm 8013
View Answer
Explanation: The Adafruit FONA 3G+GPS Breakout’s GPS capabilities is powered by the Qualcomm 8015 GPS Module. It enables geolocation services from the same device for all kinds of embedded and IOT applications. It can be controlled using the serial port.
3. What kind of commands does the Adafruit FONA 3G+GPS Breakout accept?
a) Analog Commands
b) BT Commands
c) AT Commands
d) TDM Commands
View Answer
Explanation: The Adafruit FONA 3G+GPS Breakout accepts AT commands which can be provided from any computer that is connected to it. AT Commands are an abbreviation for Attention Commands which are generally used for manipulating different types of modems.
4. What will happen if we supply a voltage of 25V to the Vcc of the Adafruit FONA 3G+GPS Breakout?
a) Damage is caused
b) Module will shut down
c) Module will not respond for the time the voltage is applied
d) Module will function normally
View Answer
Explanation: The Adafruit FONA 3G+GPS Breakout are mostly built to work on a voltage of approximately 5V. Any voltage lower than that and the board will not be able to power on, but however any voltage significantly above that and the board may suffer permanent damage.
5. Which port on any Arduino board should be connected to the Key Port on the Adafruit FONA 3G+GPS Breakout?
a) Any Digital Pin
b) Vcc
c) Gnd
d) Any Analog Pin
View Answer
Explanation: The Adafruit FONA 3G+GPS Breakout’s Key pin should be always connected to the Gnd Pin on any Arduino Board. This pin provides the function of the power on/off indicator. When you would like to shutdown the board, connect the pin to the Gnd of the Arduino Board for about 3 to 5 seconds. However for prolonged use usage of the Adafruit FONA 3G+GPS Breakout one needs to permanently connect this pin to the Gnd of the Arduino.
6. What is the full form of the RI pin on the Adafruit FONA 3G+GPS Breakout?
a) Ring Indicator
b) Right Indicator
c) Right Impersonation
d) Rig Indicator
View Answer
Explanation: The Adafruit FONA 3G+GPS Breakout has an RI pin which acts as a interrupt out pin for it. When a call is received on the module this pin becomes LOW, and is HIGH by default. Furthermore, it can also be used as an indicator for SMS.
7. How many LED indicators are present on the Adafruit FONA 3G+GPS Breakout?
a) 2
b) 1
c) 10
d) 4
View Answer
Explanation: There are 4 LED indicators present on the Adafruit FONA 3G+GPS Breakout. They include; NET for indicating the connection status and AT command acceptance, PWR for indicating when the module is booted, Charging which is usually orange and indicates the status of charge for the on board LiPo Battery, and the Charged LED which indicates when the battery is fully charged.
8. What signal should be sent to the RESET pin of the Adafruit FONA 3G+GPS Breakout in order to perform a Hard Reset of the module?
a) 100ms LOW Signal
b) Continuous HIGH Signal
c) 100ms HIGH Signal
d) Continuous LOW Signal
View Answer
Explanation: The RESET Pin on the Adafruit FONA 3G+GPS Breakout should only be used when some software issue has been created due to some configuration error. It completely hard resets the board erasing every manual configuration.
9. Do the SPK + and – pins on the Adafruit FONA 3G+GPS Breakout have DC blocking capacitors ?
a) Yes
b) No
View Answer
Explanation: The SPK + and – pins on the Adafruit FONA 3G+GPS Breakout are used to connect to any 8 Ohm speakers, the two pins are differential so they do not need to be connected to any DC blocking capacitors, however they should not be used to connect to any stereo powered speakers.
10. What is the use of the RTSin pin on the Adafruit FONA 3G+GPS Breakout?
a) Right Turn Pin
b) Hardware Control Pin
c) Software Control Pin
d) Residue Transmitter Pin
View Answer
Explanation:The Adafruit FONA 3G+GPS Breakout has the RTSin pin to control flow of transfer from the board to the micro-controller connected to it, and vice versa. The user can decide to either turn ON the flow or turn OFF the flow.
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