Need help in Convert int to string in ADC

[ahmed]

Hi every one,

First of all, i'd like to thank everyone for their support and assist

I try to use the internal ADC of nrf51822 module and send the value over bluetooth, i notice the received value in UART terminal show string equivalent value of integer ADC value , the command "ble_nus_string_send" send the data as integer(as it reads from ADC as uint8_t deceleration), but it is received as string, is this conclusion true or false? i ask if there is a suitable way to convert the integer value to string, i try many ways but it does not work.

Thanks for your help

Regards

[Alex]

Did you try to convert integer value into string by sprintf() and then send that string over ble_nus_string_send? Or I didn't understand your question correctly?

[ahmed]

Hi Alex,

I use 10-bit ADC resolution which mean i should read it into two bytes(each one declare in uint8_t), how can i use sprintf to convert these two bytes into one string?

Thanks alot

[Alex]

It depends how you want to see them, hex or decimal. Two examples: sprintf(yourstring, "%X02%X02", adc1, adc2); or sprintf(yourstring, "%d", ((uint32_t)adc1)<<8 + (uint32_t)adc2); where char yourstring[6] for example

[ahmed]

Hi Alex, The string declaration is it char or unsigned char ?