The Adafruit USB Host FeatherWing makes it easy to add USB Host support
All gas sensors require calibration for precision output
like other LEDs it's not recommended to drive them in 'voltage' mode
the manufacturer recommends you insert a bypass capacitor of 10 µF or more between Vcc and GND near this sensor to stabilize the power supply line
Blank ATmega328P chip - ready for you to mess around with
MB7374 HRXL-MaxSonar-WRST7 SF_Sound The Adafruit USB Host FeatherWingFeatures of the weather resistant MB7374, HRXL MaxSonar WRST7, include millimeter resolution, short to long distance detection, range information from 500mm to 5000mm for the nearest detectable target, heightened sensitivity over our standard sensors, a 6Hz read rate, and various output options: pulse width, analog voltage, and TTL serial. The MB7374 from the HRXL MaxSonar WRS line of outdoor sensors is a rugged ultrasonic sensor component module.