Product description: DFRobotDRV8825 - two-channel stepper motor controller 45V/2.5A - Shield for Arduino.
It is a cartridge for Arduino that allows to control twostepper motorsthrough the popularDRV8825 system.On the board there is a socket for connecting XBee wireless modules and clamp connectors for easy connection of motors.
One pulse given on the STEP pin causes one step of the motor in the direction chosen by giving the appropriate logical state on the DIR pin. The STEP output of the controller no. 1 has been connected to D5 Arduino, DIR to D4 pin. The STEP output of the controller no. 2 to pin D6 and DIR to D7.
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Product compatible with Arduino The manufacturer prepared auser guide with a sample codefor Arduino users. |
Enable Exits
The module has the ability to block individual motor outputs. For this purpose, Arduino D8 and D12 outputs are used:
| Pin D8 | Pin D12 | M1 engine | M2 engine |
|---|---|---|---|
| low | low | Unlocked | Unlocked |
| high | low | Blocked | Unlocked |
| low | high | Unlocked | Blocked |
| high | high | Blocked | Blocked |
Power supply
The motor supply voltage from 8.2 V to 45 V is given per VMOT pin.
Resolution
The step size is selected using the switch. The possible settings are shown in the table below.
| MS1 | MS2 | MS3 | Resolution |
|---|---|---|---|
| low | low | low | Full step |
| high | low | low | 1/2 step |
| low | high | low | 1/4 step |
| high | high | low | 1/8th step |
| low | low | high | 1/16 step |
| high | low | high | 1/32 step |
| low | high | high | 1/32 step |
| high | high | high | 1/32 step |
Specification DFRobotDRV8825
- Motor supply voltage: 8.2 V to 45 V
- The voltage of the logical outputs: 3.3 V or 5 V (taken fromArduino)
- Drivers: 2 x DRV8825
- Number of supported motors (channels): 2
- Maximum current per channel: 1 A (with cooling to 2.5 A)
- The device uses Arduino leads: 4, 5, 6, 7, 8, 12
- 5 different modes of operation: full step, 1/2, 1/4, 1/8, 1/16, 1/32 step
- Connector for direct connection ofXBee communication module
- Thermal fuse
- He works with:Arduino Uno
Useful links |
