Sale!
A4988 Stepper Motor Driver Chinese Chip
$ 1.35
? Low RDS (On) Output? Automatic current decay mode detection / selection? Mix with slow current decay modes? Synchronous rectification for low power dissipation? Internal UVLO? Cross-current protection? 3.3 and 5 V compatible logic supply? Thermal shutdown circuitry? Ground fault protection? Load short-circuit protection? Optional step five modes: full, 1/2, 1/4, 1/8 and 1/16




IB Biology Investigations Volume 2 – AHL
IB Biology Investigations Volume 1 – Core
Biology Exam Time CD
IB Biology Student Guide to Internal Assessment