QuadMeUp

Tag: SBUS

  • Generate S.Bus with Arduino in a simple way

    Generate S.Bus with Arduino in a simple way

    Did you noticed that lately I write about radios quite often? Well, I do and it’s not a coincidence. Proper introduction for what I’m working on will happen in a next few days, but now I will only write that this will be a mid-range, cheap, DIY radio link for UAVs. By mid-range I mean…

  • Hardware SmartPort Inverter using BC547 bipolar transistors

    Hardware SmartPort Inverter using BC547 bipolar transistors

    This post is only a short update for SmartPort inverter for F4 flight controllers. Here is alternative SmartPort inverter circuit using bipolar BC547 instead of unipolar 2N7000. All other aspects of operations are the same like in MOSFET version.

  • Simplest hardware inverter for flight controller

    Simplest hardware inverter for flight controller

    Together with increasing popularity of STM32F4 flight controllers, telemetry became hard topic again. Why? Most popular telemetry protocols, SmartPort and FrSky telemetry , requires inverted signal. Zero becomes one, one becomes zero. In case on STM32F3 that was not a big problem. Those CPUs have built in inverters. STM32F1 and STM32F4 does not. So, if…