“You can measure the temperature without any external temperature sensor, for measuring the temperature all you need is only nrf52832.
When you want to measure the temperature of the surroundings while developing Bluetooth low-energy projects you require an external temperature sensor. implementing external sensors increases the BOM Cost and requires a bit more space. you can avoid these problems by using NRF52832 for your BLE Projects.
in this project, I am measuring the temperature using NRF52DK And displaying the temperature on the LCD Display. for developing the firmware I have used the Arm Mbed.”