A great example of that is this barebones quadcopter build from [hebel23] all the way back in 2015. The build is based around the STM32F4 Discovery Board, which [hebel23] scored as a giveaway at ...

So now that you’ve built your quadcopter and can fly it without ... a small LCD screen that was purchased off eBay. Craft foam board was cut, bent, glued and duct taped to form a box about ...