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Driver Stepper DRV8825
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Stepper motor driver, DRV8825, compatible with CNC Shield UNO and Nano expansion boards. This driver is different from the A4988 model because it can be set in 1/32 resolution and supports a higher amperage than it.
Specifications:
Supply voltage: 8.2V - 45V
Logic voltage: 2.5 - 5.25V
6 different resolutions: full, 1/2, 1/4, 1/8, 1/16, 1/32
Maximum current: 2.5A, adjustable through the integrated potentiometer (for maximum 24V)
32 microstepping segments
Protection against: overcurrent, overtemperature and undervoltage
Polarity protection: No
Dimensions mm: 20.5 x 15mm
Microstepping Modes:
Îl folosesc cu un motor pătrat. Software-ul meu comandă driverul ca să accelereze și să frâneze lent rotația unui obiect mare. Driverul împarte pasul motorului (1,8 grade) la 32 și deci poate roti foarte precis axul.
O mică problemă pe care n-am rezolvat-o încă: La activarea ieșirilor (pin nENBL Low) axul se smucește puțin.