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Q2: We want automatic shutdown when the external AC power supply is disconnected, is possible?
A： Yes. you can program a script to get this function. Example (The following is a pseudo code):
<pre>
while (1) {
// invoke the API to get AC PSU status: connected or disconnected
int disconnected_flag = getACPSUStatus(); // please refer to the user manual to achieve getACPSUStatus function;
int battery_voltage = getBatteryVoltage(); // please refer to the user manual to achieve getBatteryVoltage function;
// You can make your own actions based on disconnected_flag and battery_voltage, you can only select one condition also
if (disconnected_flag) {
// execute linux or software shutdown command
}
sleep(10);
}
</pre>
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,[[File:18650_battery_size-2.jpg|400px]]