Monthly Archives: February 2017

OpenSky / tinyFISH — How to update the OpenSky receiver firmware through betaflight

Some weeks ago I added a bootloader mode to my custom FrSky compatible firmware OpenSky for commercial or DIY receivers. This allows hassle free updating of the OpenSky receiver firmware using the STM32 bootloader protocol. For targets such as the D4R-ii or others using an STM32 processor with the factory programmed bootloader nothing special had to… Read More »

tinyPEPPER ESC – initial BLHeli_S flashing tutorial using the efm8 bootloader

When you buy a BLHeli_S ESCs, the factory has pre-programmed those with the BLHeli_S firmware for you. This firmware comes in two parts, the BLHeli_S bootloader and the main firmware. The bootloader is the code that allows you to upload the latest BLHeli_S firmware using the blheli suite or -configurator. When you build your own… Read More »