ADC in H24

6 thoughts on “ADC in H24

  1. I designed my device expecting to use internal analog to digital converter (according to datasheet H24 has ADC ). But when I started to write application I found that  ADC in H24 doesn’t work. AT commands reference doesn’t have information about ADC and g24’s AT command doesn’t work with H24 either. Now I can’t provide important function to my device because of that bug. Can you tell me why ADC doesn’t work and when you are doing to implement this function in H24?

      1. Hello,


        As it is written in AT commands data sheet +CBC can be used to measure modem power  voltage and +MVREF is used to set up reference voltage regulator. But I need to measure external voltage, not power supply of modem. How can I use these commands?

  2. The H24 supports measuring external voltage via the command AT+MMAD (see Developer Guide update attached) from SW version 33.67A few notes regarding using this command:*. In order to measure external voltage, you must be connected to ADC pins 37, 43, 47*. Make sure that External input voltage levels will not exceed 2.9Vdc