It has seemed quiet in the world of IoT mergers and acquisitions, but things got a lot louder in the past week. The industrial sector seems popular, with GE offloading its PLC wing to Emerson, Johnson Controls looking to boost its smart home portfolio, and Honeywell buying a rival in warehouse automation. The trend of buying outfits to flesh-out an existing interest continues – evidence that companies now recognize that the IoT is not a way to broach entirely new markets, and more a way to improve a core competence. Honeywell has completed its spin-out of Garrett Motion, formerly its Transportation Systems Business (the engine turbocharging wing that is thankfully using the much-respected Garrett name going forward). Honeywell is also…