Objective

Test NTC(Negative Temperature Coefficient、Temperature sensor), Check is it OK

Mode switch selection

Note

• Must config NTC function in DUT firmware, this is config in US301B:

• You can open check ADC value function by modify config file

[NTC_TEST]
	adc_value_limit_enable = 0
	adc_value_low_limit = 0
	adc_value_high_limit = 1000

Operation steps

• Power on the BT Tester and select NTC test function
• Connect the DUT and BT Tester, DUT get NTC sensor ADC value, Tester show NTC ADC value
• If NOT check ADC value range：
  • Need to observe whether the ADC value reasonable manually
• If check ADC value range:
  • In range，BT Tester will broadcast PASS voice message
  • Out of range，BT Tester will broadcast FAIL voice message