Really interesting $12 150mW person sensor. Problem that MR products were created when Grove interconnect system was most popular, now so many Qwiic system sensors are popular.
BTW, Adafruit makes a Qwiic to Grove cable that allows the interconnection of these competing formats.
From the Adafruit website:
- You can use this to connect any Grove I2C sensor (3-5V) to an I2C host with Stemma QT or Qwiic connectors (3V)
- You can use this to connect any STEMMA QT (3-5V) sensor to Grove or STEMMA host (5V) board, and vice versa
- Warning: If you want to connect a Qwiic board (3V power only!) to a Grove or STEMMA host, make sure the power switch is set to 3V
Except ModRobotics products do not support voltage select on the Grove system connectors, so using the cable will fry the Qwiic boards.
Yikes - I did not know that! Thanks for pointing that out! Yet another challenge to interconnectivity and competing standards. Still, could use a buck converter like this from Adafruit, yes?
Sure - break the power wire from the Qwiic to Grove cable out to/from the voltage converter.
Better if you use a level shifter, or pick off the “raw” i2c from the Pi itself.
I think Sparkfun has an i2c breakout that fits the Raspberry Pi’s pins.