Meraki cofounders Sanjit Biswas and John Bicket are at it again with Samsara. In 2006, two MIT grad students decided to turn their networking research into a startup called Meraki. Six years later, they sold it to Cisco for $1.2 billion. But when their time was up integrating Meraki into its new home, Sanjit Biswas and John Bicket decided to do something completely different. The duo played around with drones and with tiny Raspberry Pi computers and smartphone chips. Eventually te realized the smaller and cheaper hardware going into those phones and wearable devices could...