I've been going through my parts collection to see what sensors I have that might be easily used with the Uno R4 that element14 and Arduino were kind enough to send me. I was surprised at how much I had readily available.
I did a RoadTest on the Infineon Getting Started Box IOT a few years back. It contains a number of sensors and a shield that fits the Uno form factor.
I also did a RoadTest of the Rohm SensorShield-EVK-003 with 8 sensors with an Uno-compatible shield.
I did limited testing with these two and they seem to be compatible with the Uno R4. Both do bi-directional signal conversion to 3V3 on the shield and appear to use the standard I2C Arduino calls.
Of course, there are many more options. I was recently at a conference where they had a table to share your unwanted electronics and picked up a shield with lots of connections on top. I also found one in my old Arduino "stuff" with connections and an SD card slot.
And to top it off I ordered a package of ready-made Qwiic cables since the Uno R4 WiFi board has a Qwiic connector on it.
I don't have any sensors with Qwiic connections but the package has a connector with duPont pins so I can rig something up on a breadboard for sensors with I2C. Or I could cut a connector in half and solder the end to a sensor package.
Now I need a project. For some reason all this stuff scattered on my bench made me think of the Star Trek Tricorder.
Photo credit: Cardboard prop by PartyTime
Maybe I could 3D print something with that nice '60s aesthetic of the original series and pack it with sensors. There would be plenty of room inside for an Uno. That's why I've started to test a TFT display with the Rohm sensor shield.
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