Inquiry Regarding SPI Integration Between HT-HC32 (ESP32 Wi-Fi HaLow) and DWM1001 (nRF52832)

#1

Dear Heltec Automation Community,

I am currently evaluating the integration of your HT-HC32 (ESP32 Wi-Fi HaLow module) with a DWM1001 module based on the nRF52832 MCU for my application.

I have reviewed the interface options on both modules, and while the DWM1001 documentation provides clarity on its SPI interface, I am unclear about the SPI interface on the HT-HC32 side. Specifically, I would like to know:

  1. Is it possible to establish SPI communication between the HT-HC32 and the DWM1001?
  2. Which SPI interface/pins on the HT-HC32 should be connected to the SPI pins of the DWM1001?
  3. Can the HT-HC32 act as a host (master) device in this SPI setup?
  4. Is the HT-HC32 capable of interfacing with and hosting a peripheral MCU like the nRF52832?
  5. Are there any specific steps or configurations required to enable SPI communication between the two modules?

I would highly appreciate any documentation, pin mapping, or guidance you could provide regarding this setup.

Looking forward to your support.

Best regards,
Vinith

#2

The documentation has reference design PDFs for both SPI & SDIO …

1 Like
#3
  1. Can the HT-HC32 act as a host (master) device in this SPI setup since my nrf52832 need a host controller?
#4

Why does your nRF need a host controller? But I don’t think that’s so relevant because you’d be interfacing with the ESP32-S3 on the board, not the actual HaLow module, as the HaLow module doesn’t have the pins broken out.

And as the DWM1001 is a UWB radio, what is it you are trying to do here, because with two complex radio systems / protocols and two very different MCU’s we could be guessing at how to answer for a while here!

#5

The thing I am trying to achieve is that I will receive uwb data from my dwm1001 and I want to send it to wifi and access the info. For that I need communication between DWM1001 and HT-HC32 module. Any flaws in my approach?

#6

The HT-HC32 has the ESP32-S3 and a camera on it and the HaLow module.

If you just need to get the UWB data to WiFi, then connecting the DWM1001 to a simpler module of many different kinds, even using AT commands like the older ESP8266 would probably be simpler.

#7

Yeah but the reason for going forward with HT-HC32 is that we are open to a lot of other possibilities and want to make use of the module to the fullest. If there is a possibility of connecting dwm1001 and ht-hc32, we want to go for it.

#8

Maybe you missed this bit?