malloc() in Embedded Systems – Curse or Blessing?

Most embedded developers treat malloc() like a forbidden fruit. The usual argument? “Limited RAM and dynamic allocation don’t mix.” But is this really true? Let me show you why I think this opinion is often overstated. One of my recent projects was a fertilizer mixer controller. Its job is to mix fertilizers and acid with water to achieve the desired electroconductivity and pH for irrigation in the field. During feature research, one obvious requirement emerged: recipe selection based on timetables. For any developer, that immediately means: RTC clock + user-adjustable date & time. ...

January 18, 2026 · 3 min · Hax0rZmr0cku