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The SCD-40 is a photoacoustic "true" CO2 sensor that accurately measures the concentration of carbon dioxide (CO2) in ambient air
Featuring a true USB C to C connection
Selectable power output: +5 to +20 dBm (up to 100 mW)
or professional
The OLED uses only the two I2C pins on the Feather and can be stacked with any other FeatherWing
Adafruit SPI Non-Volatile FRAM Breakout - 4 Mbit / 512 KBytes - MB85RS4MT Relay shield The SCD-40 is a photoacousticFRAM (Ferroelectric RAM) offers a breakthrough in non volatile memory combining fast write performance with extremely high endurance. This SPI FRAM breakout board features a 4 Mbit (512 KBytes) MB85RS4MT chip, capable of operating at up to 40 MHz SPI clock speeds. The board includes a built in 3. 3V logic level shifter and regulator, making it compatible with both 3V and 5V systems. Its low power consumption and instantaneous byte level access make it
US$ 109.50
US$ 31.95
US$ 264.50
