Driving motor stepper with MCP23008 TB6612

For Adafruit customers who seek help with microcontrollers

Moderators: adafruit_support_bill, adafruit

Please be positive and constructive with your questions and comments.
Locked
User avatar
fixair
 
Posts: 8
Joined: Fri Feb 08, 2013 3:36 pm

Driving motor stepper with MCP23008 TB6612

Post by fixair »

Hello, I would like to know if it is possible to control a TB6612 via MCP23008 and if so, how? I want control of stepper motors via I2C but for architectural reasons, I can utliliser shield for raspy 2. Thank you in advance.
Sincerely FX

---------------------------------------------------------------

Hello, je souhaite savoir s'il est possible de piloter un TB6612 via un MCP23008 et si oui, comment ? Je souhaite piloter des moteurs pas à pas via I2C, mais pour des raisons d'architecture, je ne peux utliliser le bouclier pour raspy 2. Merci d'avance.
Cordialement FX

User avatar
adafruit_support_bill
 
Posts: 88093
Joined: Sat Feb 07, 2009 10:11 am

Re: Driving motor stepper with MCP23008 TB6612

Post by adafruit_support_bill »

Yes it is possible - but the MCP23008 does not have PWM capability, so you would not be able to implement microstepping.

Another alternative is to use the PCA9685. That has PWM and is the chip we use to drive the TB6612 chips on the Motor HAT.

User avatar
fixair
 
Posts: 8
Joined: Fri Feb 08, 2013 3:36 pm

Re: Driving motor stepper with MCP23008 TB6612

Post by fixair »

A thousand pardons for the delay, thank you for the answer.

Locked
Please be positive and constructive with your questions and comments.

Return to “Microcontrollers”