A4988 stepper driver con ESP32

Alimentazione 3.3-5 V Bus GPIO

Pin e collegamento all’ESP32

Pin	Ruolo	Pin ESP32	Note
EN	Ingresso (lo pilota l’ESP32)	D25	Enable, active LOW. Leave unconnected to keep it on
MS1	Non collegato all’ESP32	—	Microstep select
MS2	Non collegato all’ESP32	—	Microstep select
MS3	Non collegato all’ESP32	—	Microstep select
RST	Ingresso (lo pilota l’ESP32)	D26	Tie to SLP to keep the driver running
SLP	Ingresso (lo pilota l’ESP32)	D27	Tie to RST to keep the driver running
STEP	Ingresso (lo pilota l’ESP32)	D32	One pulse = one step
DIR	Ingresso (lo pilota l’ESP32)	D33	Direction
VMOT	Non collegato all’ESP32	—	Motor supply 8 to 35 V from a separate supply. Add a 100 µF capacitor
GND_MOT	Massa	GND	Motor supply ground
2B	Non collegato all’ESP32	—	Motor coil 2
2A	Non collegato all’ESP32	—	Motor coil 2
1A	Non collegato all’ESP32	—	Motor coil 1
1B	Non collegato all’ESP32	—	Motor coil 1
VDD	Alimentazione	3V3	Logic supply: 3V3
GND	Massa	GND

Collegamento consigliato per l’ESP32 DevKit a 30 pin, evitando i pin della flash, di sola lettura e di strapping. BoardPilot lo controlla mentre colleghi.

Fonti

Allegro A4988 datasheet, Logic supply 3 to 5.5 V; motor supply 8 to 35 V
Pololu A4988 stepper driver carrier, Pinout and minimal wiring (RST to SLP)

Provalo in 3D in BoardPilot

BoardPilot Dati del componente (JSON)

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Dati dei componenti: CC BY 4.0, riutilizzabili citando BoardPilot.