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Monitor your indoor air quality with an inexpensive CO2 sensor. We look at three candidates to help you find the best solution. ... Three inexpensive CO2 sensors compared ... inexpensive solutions: the Winsen MH-Z19C [1], the ScioSense ENS160 [2], and the Sensirion SCD40 [3]. The latter sensor from brand manufacturers such as Adafruit, Pimoroni, or SparkFun are really expensive

Want to communicate without relying on mobile networks? Meshtastic lets you create your own off-the-grid wireless mesh network with an inexpensive LoRa device and an Android phone. ... LoRa chips. However, all technology that the Meshtastic project has built on top of LoRa is open source. Moreover, the LoRa protocol has been reverse-engineered and implemented in a GNU Radio [3

directly to the PCI bus, and a Hailo-8L AI accelerator, which could also be installed on any other computer with an M.2 interface. This entry-level AI chip achieves a performance of 13 TOPS, which is half