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Signal Indicator Lights and Buzzer of DC charging pile reader
Main component
Concept:
The Signal Indicator Lights and Buzzer of the DC charging post card reader are two important components of the user interface, which are used to provide visual and auditory feedback to the user to indicate the working status and operation results of the card reader.
Function:
Signal light:
Red indicator: Usually used to indicate an error, warning, or system failure status.
Green indicator: Generally used to indicate the normal working status, such as inserted card or communication.
Buzzer:
Provides an audible prompt to confirm the success of the operation or to warn the user of an error.
Working Principle:
Signal light:
Red and green leds: The card reader contains two LED lights, each for different status indicators. Red may indicate a fault or error, while green may indicate a working or successful status.
Control logic: The microcontroller of the card reader controls the switch of the LED according to the result of the card reading operation to show the current status to the user.
Buzzer:
Sound feedback: The buzzer is controlled by the microcontroller of the card reader and emits different sound signals according to different operation results.
Control commands: The user manual mentions the buzzer control command (Cmd = 31 13), which indicates that the operating state of the buzzer can be controlled by sending specific commands.
Sum up
Through these signal indicators and buzzers, the DC charging pile reader is able to effectively interact with the user, provide intuitive operational feedback, enhance the user experience, and help users identify and solve problems during charging.
DC CHARGING PIlE SERIES
DC charging pile is an efficient charging facility for electric vehicles, which uses direct current (DC) to directly charge the vehicle battery, significantly reducing the charging time. Compared with traditional AC charging piles, DC charging piles are able to provide higher power output and can usually charge an EV to 80% of its capacity in 30 minutes, providing users with a convenient charging experience.
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