Re: Consultation: connecting I2C/SPI devices to network

[Florian Feldbauer via Tech-talk <tech-talk@aps.anl.gov>]

Hey Gabriel,

I typically use a Raspberry Pi to readout devices via I2C.
For this task I wrote a small i2c device support module, that uses Stream Device + Asyn (https://github.com/ffeldbauer/drvAsynI2C)

It does not make the I2C communication directly accessible on network, but it makes all the data points accessible via CA/PVA through an EPICS IOC.

If you really want to have a I2C to Ethernet bridge, I would most likely use a RP2040 or ESP32 microcontroller and implement a simple UDP or TCP protocol exchanging either ASCII or raw "strings" containing the data.

HTH,
Florian

On 12/15/25 10:43, Gabriel Fedel via Tech-talk wrote:

Dear tech-talk,

Any experience or suggestion of bringing hardware communicating I2C and/or SPI to be accessible on network? 

Maybe even some EPICS integration experience on them ?

Thanks in advance

-- 
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Dr. Florian Feldbauer
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