BlueRobotics BLUART USB-zu-Serien- und RS485-Adapter - RobotShop
Mehrere Attiny an einem Arduino X? - Deutsch - Arduino Forum
Xanthium enterprises - RS485 communication between PC and ATiny.A C# program running on the PC controls the ATtiny board through RS485 protocol.Visit https://goo.gl/uvyGhG | Facebook
ATTINY85-20SU ATTINY85-20 ATTINY85 ATTINY Neue Original MCU SOP-8 IC Chip - AliExpress
Is this a good way of making a low power attiny? Unpower instead of sleeping - Arduino Stack Exchange