BLHeli on Hobbyking 40A ESC 4A UBEC 9261000003 – #3

ESC02

Following on from BLHeli on Hobbyking 40A ESC 4A UBEC 9261000003… and BLHeli on Hobbyking 40A ESC 4A UBEC 9261000003 – #2

This article documents some comparison tests of:

  • SimonK commit 1f75da384e5c83f83916aa752819ca6eed712565 bs.hex; and
  • BLHeli v11.2 commit baaa4db600b5cd78752c9b4f580fd08d15f1f1f1 for Hobbyking 40A ESC 4A UBEC.

Continue reading BLHeli on Hobbyking 40A ESC 4A UBEC 9261000003 – #3

Galvanised steel wire OCF dipole

I was chatting on the weekend with a new ham who was inspired by an article in Amateur Radio to build an OCF dipole using galvanised fence wire.

I have not seen the article, but he recalled that it recommended single core 1.25mm galvanised wire as quite suited to the task of an 80m OCF dipole. The wire consists of a mild steel core with a thin layer of zinc. Continue reading Galvanised steel wire OCF dipole

BLHeli on Hobbyking 40A ESC 4A UBEC 9261000003 – #2

Following on from BLHeli on Hobbyking 40A ESC 4A UBEC 9261000003

I was sent some further info on the bootloader firmware and adapter hardware.

Initial experiments using an adapter that I use for a range of this type of application were unsuccessful. On examining the waveforms with a ‘scope, it was apparent that a lower value of pull-up resistor was required. Continue reading BLHeli on Hobbyking 40A ESC 4A UBEC 9261000003 – #2