Note: this 7A ESC only works together with the following sound & light controller:

https://www.pcbway.com/project/shareproject/Arduino_RC_engine_sound_light_controller_for_ESP32_a9334731.html

https://github.com/TheDIYGuy999/Rc_Engine_Sound_ESP32

It also works together with the upcoming modular controller, which is shown on one picture.

Assembling steps:

• Solder 5 x 25V, 22uF 1206 ceramic capacitors
• Solder the RZ7886 IC
• Clean the underside
• Solder the 3 pin servo wire and the white single wire according to the pictures
• Solder 4 x male pin headers with 2 pins
• solder an MP 1584 DC-DC step down power module (5V fixed voltage version) to the back side
• Clean all solder joints
• Solder the JST power cables. Note: use good quality silicone wires with 18 - 20 AWG. Other wise the ESC could catch on fire!
• Optional: add a red wire for the battery monitor to the BAT+ terminal
• Add a piece of transparent shrink tube to protect the ESC from shorting out

For more informations and schematic see:

https://thediyguy999.github.io/TheDIYGuy999_ESP32_Web_Flasher/products.html

Also have a look at this video on my YouTube channel. It shows the first hand made prototype in operation: