NRF52 BLE UART + Proximity

[Sunil vignesh]

Hi,

I am using NRF52832 to read the sensor data (BMI160 accelerometer sensor) by using I2C.

I try to send the sensor data to mobile by using BLE_UART. upto this i finished now. I need is.

1.calculate the BATTERY level without using ADC. is there any register used to read the battery?

2. need to know the paired device distance. or proximity?

[ps_anu]

hi..... sunil ..

i am using nrf52832  to read the temperature sensor by usin i2c 

i try to send the sensor data to mobile ,... i am merging two examples programs uart and twi sensor 

it is showing error in nus_data_handler

can you help me how to merge the program and what are the changes i want to do

[Sunil vignesh]

HI saral,

i have few questions:

1. Which temperature sensor are you using?

2. are you get the raw data from sensor using TWI ?

3. what kind of error are you getting?

[ps_anu]

 lm335  ..

 YES 

undefined reference to `ble_nus_string_send'

Output/ble_app_uart_pca10056_s140 Release/Obj/main.o: In function `nus_data_handler':

[ps_anu]

just i want to sense the temperature through the temperature sensor and want to send the data to the uart app 

[bjorn-spockeli]

HI Sunil, 

Q1: There are no internal peripheral that measures VDD on the NRF52. You need to use the ADC to measure VDD. Alternatively, if yo ujust want to know if VDD has fallen below a certain threshold, then you can use the LPCOMP. 

Q2: You can use the RSSI to determine of the connected device is close of far away, see S132 SoftDevice v6.1.0: RSSI get sample.

Best regards

Bjørn