automation, wireless sprinkler control and wireless mesh using the N8VEM open source homebrew system. Breathalyzer equipment used by law enforcement agencies. [62] Consumer electronics Various scientific and graphing calculators use the Z80, including the Texas Instruments TI-73 , TI-81 , TI-82 , TI-83 , TI-84 , TI-85 and TI-86 series. [63]