# Analog to Digital conversion of Eyelink signals
**URL:** https://mworks.discourse.group/t/analog-to-digital-conversion-of-eyelink-signals/123
**Category:** Support
**Created:** [July 2, 2021, 12:29pm UTC](https://mworks.discourse.group/t/analog-to-digital-conversion-of-eyelink-signals/123 "2021-07-02T12:29:41Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@cstawarz](https://mworks.discourse.group/u/cstawarz)
#### Post date: [July 2, 2021, 12:29pm UTC](https://mworks.discourse.group/t/analog-to-digital-conversion-of-eyelink-signals/123/1 "2021-07-02T12:29:41Z")
Hi Chris -
I’d like to circle back to the idea of finding an analog-to-digital converter to bring in Eyelink’s analog GAZE data into MWorks.
I know National Instruments no longer supports MacOS. I remember you suggested the VPixx, but there was an issue of timelag there (also it would be $7k extra to enable digital I/O on our monitors). Any other devices that could serve as an appropriate Analog-to-Digital Converter?
Thanks,
Yasmine
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### Author:  [@cstawarz](https://mworks.discourse.group/u/cstawarz)
#### Post date: [July 2, 2021, 2:22pm UTC](https://mworks.discourse.group/t/analog-to-digital-conversion-of-eyelink-signals/123/2 "2021-07-02T14:22:03Z")
Hi Yasmine,
> I remember you suggested the VPixx, but there was an issue of timelag there (also it would be $7k extra to enable digital I/O on our monitors).
Really? I wouldn’t think lag would be an issue. Can you explain?
Agreed that $7K is a lot just to add analog I/O.
> Any other devices that could serve as an appropriate Analog-to-Digital Converter?
MWorks is in kind of an awkward place right now regarding analog I/O. The traditional DAQ devices we support, [NIDAQ](https://mworks.github.io/documentation/latest/components/nidaq_device.html) and [ITC-18](https://mworks.github.io/documentation/latest/components/itc_18_io_device.html), are no longer supported on macOS and no longer available for sale at all, respectively. While the [Firmata](https://mworks.github.io/documentation/latest/components/firmata_device.html) interface does support analog input, none of the Firmata-compatible boards I’m familiar with have DAQ-quality ADC capabilities.
The device I would like to recommend is the [LabJack T7](https://labjack.com/products/t7). The only reason I can’t recommend it at the moment is that I haven’t finished implementing an MWorks interface for it. I could probably have it done in relatively short order (next 1-2 months), but it isn’t something you could use right now.
Chris
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### Author:  [@cstawarz](https://mworks.discourse.group/u/cstawarz)
#### Post date: [July 19, 2022, 7:05pm UTC](https://mworks.discourse.group/t/analog-to-digital-conversion-of-eyelink-signals/123/3 "2022-07-19T19:05:55Z")