# Help with building BlueESC from scratch

**URL:** <https://discuss.bluerobotics.com/t/help-with-building-blueesc-from-scratch/22611>\
**Category:** Speed Controllers (ESCs)\
**Tags:** blue-esc\_retired\
**Created:** [March 12, 2026, 12:50am UTC](https://discuss.bluerobotics.com/t/help-with-building-blueesc-from-scratch/22611 "2026-03-12T00:50:15Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![aarush](https://avatars.discourse-cdn.com/v4/letter/a/8491ac/32.png) [@aarush](https://discuss.bluerobotics.com/u/aarush)\
**Post date:** [March 12, 2026, 12:50am UTC](https://discuss.bluerobotics.com/t/help-with-building-blueesc-from-scratch/22611/1 "2026-03-12T00:50:15Z")

</div>

Hi everyone,

I’m trying to build the BlueESC from scratch using the open-source files on the **[GitHub repo](https://github.com/bluerobotics/BlueESC)** and have run into a couple of gaps.

**1. Firmware & Hardware Version Correspondence**

The GitHub repo seems to have Rev5 as the latest hardware release, but I’m not entirely sure which version of the tgy firmware corresponds to it. Specifically:

- Is the `blueesc` target in the **[tgy firmware fork](https://github.com/bluerobotics/tgy)** still current and aligned with Rev5?

- Were there any firmware changes between Rev4 and Rev5 (or Rev6 if that exists) that I should be aware of?

**2. Unspecified BOM Components**

Looking at the schematic and readme, a few components aren’t fully specified by part number. The ones I’m stuck on:

- **Ceramic Resonator** - frequency is clearly 16 MHz, but the exact part number/package isn’t called out. Is it a CSTNE16M0V530000R0 or something else?

- **Schottky Diodes** - used in the gate drive/bootstrap section; the schematic shows them but doesn’t specify a part number.

---

<div class="post-metadata">

**Author:** ![EliotBR](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/eliotbr/32/6937_2.png) [@EliotBR](https://discuss.bluerobotics.com/u/EliotBR)\
**Post date:** [March 18, 2026, 3:31pm UTC](https://discuss.bluerobotics.com/t/help-with-building-blueesc-from-scratch/22611/2 "2026-03-18T15:31:46Z")

</div>

Hi @aarush, welcome to the forum 🙂

> [@aarush](#):
>
> - Is the `blueesc` target in the **[tgy firmware fork](https://github.com/bluerobotics/tgy)** still current and aligned with Rev5?

It’s hard to consider an archived project as “current”, but from the notes on [the BlueESC tags](https://github.com/bluerobotics/BlueESC/tags) it doesn’t seem like any of the hardware revisions would have required specific firmware changes - it likely just makes sense to use the latest available firmware from before the project was discontinued (which matches the directions from [the documentation](https://docs.bluerobotics.com/bluesc/)).

> [@aarush](#):
>
> Is there a more detailed BOM available anywhere, or is the Eagle BOM export the only reference?

I’m not aware of a more detailed BOM, but I’ll ask internally in case we can dig up those extra details to share. Note that given the age of the project it’s quite possible some of the original components are no longer readily possible to source.

---

<div class="post-metadata">

**Author:** ![EliotBR](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/eliotbr/32/6937_2.png) [@EliotBR](https://discuss.bluerobotics.com/u/EliotBR)\
**Post date:** [March 18, 2026, 9:18pm UTC](https://discuss.bluerobotics.com/t/help-with-building-blueesc-from-scratch/22611/3 "2026-03-18T21:18:42Z")

</div>

> [@EliotBR](#):
>
> I’ll ask internally in case we can dig up those extra details to share.

Following up:

> [@rjehangir](#):
>
> - Schottky diodes (D1-D3): `1N4148WX-TP`
> - Resonator (Y1): `CSTCE16M0V53-R0`