KansaiRobot
Member
Hello and thanks always.
I would like to ask some advice for my situation here.
The situation
I have a 3.3V microcontroller (the STM32). In fact this can be powered by 5V it seems but the pins act based on 3.3V
I plan to use a SLA (7026 or 7080s) to control a stepping motor as I did in the past using a 5V micro. I dont know if these can use 3.3V so I am thinking why not go for what I know it works , meaning 5V for this.
So the remaining situation is: I got 4 pins coming out from the controller (3.3V) that I have to connect with 4 pins of the SLA (5V). The classic 4 pins to control a stepper (A, ~A, B,~B).
The problem
So I have to connect these pins . I know there are level converters (sorry I dont remember now the model number) that I can use, and maybe I will use that since these are only 4 pins... (do anybody remember the model number??)
The question
However I saw one guy over here got a schematic with a similar problem, but the solution didn't involve these level converters, but something with transistors I believe. So my question is, given the situation described, is there a solution with transistors or other elements to connect these 4 pins??
(and also the converter model if anyone remembers)
Thanks a lot
I would like to ask some advice for my situation here.
The situation
I have a 3.3V microcontroller (the STM32). In fact this can be powered by 5V it seems but the pins act based on 3.3V
I plan to use a SLA (7026 or 7080s) to control a stepping motor as I did in the past using a 5V micro. I dont know if these can use 3.3V so I am thinking why not go for what I know it works , meaning 5V for this.
So the remaining situation is: I got 4 pins coming out from the controller (3.3V) that I have to connect with 4 pins of the SLA (5V). The classic 4 pins to control a stepper (A, ~A, B,~B).
The problem
So I have to connect these pins . I know there are level converters (sorry I dont remember now the model number) that I can use, and maybe I will use that since these are only 4 pins... (do anybody remember the model number??)
The question
However I saw one guy over here got a schematic with a similar problem, but the solution didn't involve these level converters, but something with transistors I believe. So my question is, given the situation described, is there a solution with transistors or other elements to connect these 4 pins??
(and also the converter model if anyone remembers)
Thanks a lot