Does nrf52832 DK - PCA10040 has temperature sensor module in it?

[nordicdev]

Hi,

I was wondering if nRF52832 Development Kit - PCA10040 has a temperature sensor module in the development kit?

Thanks.

[Bjørn Kvaale]

Update: The nrf52832 dev kit does have a built in temperature sensor & there is a temperature example in the SDK that shows you how to use the built in temperature sensor on the dev kit. This example uses the not very accurate internal temperature sensor that measures the CPU core (see link). 

Previously, I thought this temperature example required an external temperature sensor, but this was wrong.

[Nijat]

How to connect PCA10040 with the temperature sensor ?

[Bjørn Kvaale]

Have you tried the SDK temperature example I mention above? This uses the built in temperature sensor on the CPU to measure the temperature. You can see the temperature values using either UART with Putty or an RTT client like J-Link RTT Viewer.

[Nijat]

I hope I can use an external temperature sensor. Is there any example how we can connect a external sensor withPCA10040 and read the data ?

[Bjørn Kvaale]

What type of communication interface does your temperature sensor have? The Nordic Thingy temperature sensor uses I2C for example. There is also a TWI sensor example that could be interesting for you (also uses I2C for communication). It is also possible to use SPI for example (SPI Master & Slave SDK examples).

[Nijat]

The example you mentioned above is regarding to two boards I think. With SPI, the slave part never cares about the Master.

I hope I can use SPI connection for my external sensor, but when we use SPI connection, we need to initialize the pin before we read/write to that pin. I cannot find any tutorial/code how to init a pin as SPI interface. That is very clear on Arduino boards.