Thingy 53 external SPI

[Rein G. Bentdal]

From the introduction video it was stated that the Thingy 53 has a 4-pin JST connector which includes I2C. But there don't seem to be any documentation about this connection for Thingy 53. I am working on a proof of concept in the Wireless group at Nordic and would like to send audio data to the Thingy, then further send the audio data over bluetooth. Is it possible to get some help/information about the SPI?

Many thanks

[Vidar Berg]

Hello,

The interface is shown here in the documentation: Nordic Thingy:53 Hardware - Expansion board interfaces. But it's only 4 pins, is that going to be enough for SPI? Have you considered the nRF5340 Audio DK? It sounds like it may be more suited for what you are trying to do. 

[Rein G. Bentdal]

I see i wrote the wrong protocol in the last sentence, meant I2C. The protocol only needs two wires. In the Thingy 53 introduction video it was stated that it supports Stemma. Nordic Thingy:53 - nordicsemi.com The connector on Thingy 53 is JST PH with 4-pins which makes the stemma connector for I2C use, ref this article: What is STEMMA? | Adafruit STEMMA & STEMMA QT | Adafruit Learning System. I would preferably use the nRF5340 Audio DK, as you stated, but i only have the Thingy.53 available at the moment. Since i am currently only interested in testing the bluetooth audio functionality, i hope its enough with the Thingy 53, using I2C to send audio data

[Rein G. Bentdal]

got my hands on the audio dk so this is no longer relevant