¶ esc-wiring
The ESC is used to transform the DC voltage from the battery to a rotating phase voltage for the motor. The Holybro Tekko32 F4 45A ESC with the BLHeli32 firmware showed superior efficiency.
Before using the ESC, some wires have to be soldered to the ESC.
¶ Required Parts
- 2 x Male Gold Plugs
- 3 x Female Gold Plugs
- 2.5 mm² Silicone Cable, 120 mm long
- Delivered with Holybro Tekko32 F4 45A ESC:
- Capacitor
- 1 x Black Power Wire
- 1 x Red Power Wire
- 3 x Signal Cables (Black, White, Blue)
- Big Shrinking Tube
¶ Required Tools
- Soldering Iron
- Solder
- Isolation Tape
¶ Assembly of ESC
Several steps are required to assemble the ESC. Keep the following order to ensure an easy process:
-
Start by preparing the capacitor:
- Bend the legs so that they have the matching distance between the
+and-pad. - Add solder to both legs. The legs have to be shorter than shown in the image, see next step.
- Add isolation tape like shown in the image. This prevents electrical shorts to the signal pads.
- Bend the legs so that they have the matching distance between the
-
Solder Capacitor to ESC. Be sure to solder the correct pin to the correct pad. The withe stripe indicates the negative pin of the capacitor.
- Solder the
+leg to the pad - Solder the
-leg to the pad
- Solder the
The Capacitor has a polarity. The white Stripe has to be soldered to the negative pad! Else it will blow up and you will find yourself on a fish market.
-
Solder the signal cables to the ESC.
- The
Bluewire isPWM - The
Whitewire isTX - The
Blackwire isGND
- The
-
Prepare the power in cables.
Cut the accompanying power cables to two halfs.- Use the full length of accompanying power cables
- Add solder to the unsoldered ends.
- Add male gold plugs to one end of each wire.
-
Prepare three motor out cables
- Cut three cables with a length of 40 mm and solder both ends.
- Solder female gold plugs to one end of each cable.
- Add shrinking tube as shown below.
-
Solder Battery Cables to ESC
- Solder
Redwire to+ - Solder
Blackwire to-
- Solder
-
Add big shrinking tube
- Add the big shrinking tube around the ESC
- Keep some space to solder the moter cables to the ESC
- Solder motor cables to the ESC
-
Add Isolation tape to prevent shortcuts
- Make sure all metal of the capacitor is covered
- Add tape at solder points
-
ESC signal cable
- Add crimping contacts
2, thewhitecable must not be in the connector - Insert into connector
- isolate the white crimping contact
- Add crimping contacts
¶ ESC Programming
See https://wiki.searchwing.org/en/home/Development/Flightcomputer/arupilot-dshot