RP2040-ADS1256 DAQ module with GPIOs

In this video, I will show you (hopefully) the last iteration of my ADS1256-RP2040 DAQ module. I redesigned the board and the front panel, and I made all the GPIO pins of the RP2040 available. So from now on, this little box packs a lot of punch! High speed and high resolution, 8-channel ADC, plus a fast microcontroller with a bunch of GPIOs and peripherals. It was a little bit challenging because I could not change the PCB’s dimensions at all, and I had limited freedom with the PCB arrangement. Luckily, I could bring the pins to the bottom of the PCB where I could use two JST SH 1.0 mm connectors to bring out all the pins.

Additional resources

If you want to get this board, visit my PCBWay project page. I provided all the necessary files and information to PCBWay so that they could also assemble the board for you. If you decide to get the same enclosure (affiliate link) that I have used, don’t forget to get the front and rear panels as well!

If you like these projects and want to “invest” in me so that I publish similar ones in the future, please consider supporting me via YouTube memberships!

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All three modules I built so far

The bottom two units are without any GPIOs and the top is with all the available GPIOs.

Another perspective

Front panel with GPIOs and USB-C connector

With the additional GPIO pins, this device is a very versatile DAQ module.

JST SH 1.0 mm connector

Surprisingly, it is very easy to hand solder them, however, it is a painful process to crimp the wires for it if you don't have the best tools.

GPIO pins on the bottom of the board

All pins are marked, you could even skip the connectors and carefully solder the wires directly on the solder tabs.