Interfacing the HC-SR04 ultrasonic distance sensor and the STM32F0 Discovery board!

A few months back, I bought myself a cheap SR04 ultrasonic rangefinder (Datasheet:, as per off the magical eBay (Example – Link will expire: As you can imagine, these things are ridiculously cheap at a mere 99p inc. p+p. How that is even profitable, I’ll never know! They’re actually pretty nice devices and allow for […]

Altera CPLD development board

Well! I’ve been looking to further develop my VGA controller on my CPLD. So as per, I’ve been researching into methods and what not and found out that 800×600 at a refresh rate of 72Hz uses a standard pixel clock of 50MHz! This is obviously in comparison to many other VGA modes which seem to […]