The eBay hacker favorite, the so-called DHT22 module, doesn’t fare all that ... microscope to figure out what’s going on. The other sensors were fine, with the HTU21D and SHT71 being standouts ...

temperature and humidity sensors, an RTC, and a Bluetooth module for uploading data to a phone. [Rui] even manages to work in an homage to the grand-daddy of all arcade games with a Pong splash ...