STM32F4 Discovery

Library 35- LIS302DL or LIS3DSH accelerometer 62

Library 35- LIS302DL or LIS3DSH accelerometer

Maybe you’ve noticed one chip between four leds on STM32F4-Discovery board. This chip is accelerometer. On market, there are 2 versions of STM32F4-Discovery board. First release had LIS302DL (old board) and new release (current) has LIS3DSH device. LIS3DSH has 5 selectables full scales (2/4/6/8/16G), old LIS302DL has only 2 (2.3/9.2G). I made a simple library which supports both devices. Library automatically recognize connected device, if there is any. You just have to check which is on board, because different devices...

Library 34- STM32F4 as USB HID Device 47

Library 34- STM32F4 as USB HID Device

With USB HID Device library, you can turn STM32F4 to be a keyboard, mouse or gamepad device. It also supports all three settings at the same time. Device is shown to computer as “Keyboard; Mouse; Game controller“. This library allows you to use 2 gamepads at the same time, one keyboard and one mouse. For mouse you can use left, middle and right buttons, X and Y cursor axes and wheel vertical rotation. For gamepads, you can implement 16 buttons...

PWM graph 62

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 54

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 42

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...

Library 31- USB HID Host for STM32F4 84

Library 31- USB HID Host for STM32F4

USB HID (or Human Input Device) is a library, that allows you to read mouse or keyboard data with your STM32F4xx device. So you can use keyboard to write characters to STM32F4xx or use mouse for LCD or any other stuff. Library Features Interface with USB mouse 3 buttons and movement supported Interface with USB keyboard QWERTY or AZERTY supported