Monthly Archive: September 2014

PWM graph 60

Library 33- PWM for STM32F4

I had enough of each time configuring PWM for some reason, so I decided to make a library for it. This library allows you to use PWM signal on all possible timers on all possible pins for timer. I made it for controling servos, but it can be used for anything else. PWM works in FAST PWM mode. You just set your PWM frequency, timer you will use, channel on timer and you are ready to go. If you need...

All STM32F4 tutorials 47

All STM32F4 tutorials

Sometime I made a tutorial how to work with something on STM32F4xx device, because is hard and pointless to make library for it for any reason. Tutorials are set to work at least with STM32F4xx devices. Tutorials NR Name Description 1 FIRST TIME First time with STM32F429 Discovery. Coocox project tutorial 2 KEIL UVISION Default project for Keil uVision to work with STM32F4 devices 3 PWM PWM tutorial for STM32F4xx 4 NVIC Nested vector interrupt controller tutorial 5 EXTI External...

Matrix keypad on STM32F4 38

Library 32- Matrix keypad on STM32F4

I have about 10 matrix keypads from ebay, like this or this. They are nice, because with 8 pins I can control 16 buttons in matrix way. I made a really simple library to handle pressed button and use it in projects. Library supports long pressed button. This feature works like on PC. You can adjust refresh rate how fast this works. Everything is below. Library Features Interface with 3 x 4 or 4 x 4 matrix keypad Supports long...