About Ground Embedded
Every voltage is measured from a reference point. We want to be that steady 0 V for people learning embedded systems.
The name
The first symbol you place on a schematic is ground. Whether the rail is 3.3 V or 12 V, every voltage is measured with that point as zero. When the reference moves, sensor readings jump, communication breaks and motors shake. Learning is similar: each concept is one search away, but without a reference for where it sits and what to compare it with, you get lost quickly. Ground Embedded puts C, circuits, firmware, communication, control and motors on one map, so you can always see where the thing you are learning sits.
Who makes it
The author develops application software for production vehicle controllers at an automotive research centre, studied motor control in graduate school, and has since built drones and a self-driving RC car and co-developed sensorless motor control with companies.
How things are explained
- See it first. The direction of current, a bit travelling down a wire, the moment a rotor is pulled around: shown in 3D before any equation.
- Check it on a waveform. Not just "this is how it works", but the scope trace, the register value and the table in the datasheet.
- Keep it connected. Circuit and code on the same board: how the circuit constrains the firmware and how the firmware changes control performance.
Channel
Ground Embedded on YouTube · 26.4K subscribers. Videos are in Korean.