BLHeli_32 has been one of the most popular ESC firmware options used in FPV drones. Unfortunately, itโs been abruptly shut down, and there wonโt be any more new BLHeli_32 ESCs or software updates. So, what does this mean for FPV pilots, and what steps should you consider next? Letโs delve into the details.
Why is BLHeli_32 Shutting Down?
BLHeli_32 has been the go-to firmware for 32-bit ESCs in FPV drones. Initially, BLHeli and BLHeli_S were open-source, but BLHeli_32 was closed-source, owned by the Norwegian company BLHeli AS. ESC manufacturers had to purchase a license to use BLHeli_32 firmware on their ESCs.
However, BLHeli AS recently decided to shut down its business operations (see the above screenshot of their statement for details). This means BLHeli_32 ESCs will no longer be available once the current stock runs out, as manufacturers wonโt be able to obtain new licenses.
Impacts on FPV Pilots
In the short term, there is no immediate need to worry for FPV pilots. Will there be a shortage of ESCs? Personally, I donโt think so. There is a good amount of existing BLHeli_32 ESC stock, so you should still be able to purchase them in the next few months at least. Although there might not be new BLHeli_32 updates in the future, your ESC will continue to work as they did.
Note that this incident only impacts the closed-source BLHeli_32, not BLHeli_S which is open source. How to tell if you have BLHeli32 or BLHeli_S ESC: https://oscarliang.com/identify-esc-firmware/
Manufacturers will eventually have to switch from BLHeli_32 to alternative ESC firmware. This transition might cause some disruption in the availability of ESCs, but I think the impact will be minimal. Time will tell.
ESC Firmware Alternatives
There are already viable ESC firmware alternatives. For BLHeli_S, thereโs Bluejay, and for BLHeli_32, there is AM32. These firmware options can deliver almost the same functionality and performance, if not more.
When switching to a new ESC firmware, the flashing and updating process will change too. Iโve covered these in the following tutorials:
- How to flash Bluejay: https://oscarliang.com/bluejay-blheli-s/
- How to flash AM32: https://oscarliang.com/flash-am32-blheli32-esc/
What Should You Do Now?
If youโre currently using BLHeli_32 ESCs, thereโs no immediate need to switch. Your ESCs will continue to work as they did. Donโt rush into flashing AM32 because thereโs no real benefit, and once you flash AM32, thereโs no going back to BLHeli32. Itโs better to wait and see how the situation evolves and then make an informed decision.
If you are buying new ESCs today, itโs worth considering AM32 for future-proofing, or go with BLHeli_S ESC so you can flash Bluejay. Itโs still okay to buy BLHeli_32 and switch to AM32 later if you wish.
For those ready to explore AM32, itโs crucial to understand the process thoroughly. Take time to research and ensure compatibility before making any changes. I have a tutorial here: https://oscarliang.com/flash-am32-blheli32-esc/
For BLHeli_S users, you should definitely flash Bluejay as it offers more features and better performance, particularly bidirectional DShot and RPM filtering. Hereโs how to flash bluejay: https://oscarliang.com/bluejay-blheli-s/
Conclusion
The discontinuation of BLHeli_32 is a significant and unfortunate change, but itโs not the end of the world for FPV pilots. While there may be some short-term disruptions, the FPV community is resilient and adaptable. With alternatives like Bluejay and AM32, we have the tools to continue flying and enjoying the hobby. In the meantime, keep flying with your current gear, stay informed about the latest developments, and be prepared to adapt as the landscape of ESC firmware evolves.