Huyang Boards

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Huyang Boards

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The Huyang boards were developed with Jeanette for this Professor Huyang Charity version:
https://droidbuilders.uk/product/professor_huyang_files_charity_stl/
By purchasing the STLs, you support the Grant Imahara STEAM Foundation.
More information about Huyang can be found here: https://www.facebook.com/groups/876141727197581

The code and more information can be found on Jeanette’s GitHub:
https://github.com/JeanetteMueller/Huyang_Remote_Control

The set consists of 3 boards:

The Mainboard (2 versions for Wemos D1 Mini or ESP-12E – both are ESP8266 boards)
The Chest Lights Board with 2 LEDs
The Eyes & Servo Board

Mainboard:

(2 versions for Wemos D1 Mini or ESP-12E – both are ESP8266 boards)

The Mainboard requires a DF Player for sound output in addition to the ESP, with line-out via pin header and headphone jack available.
The PWM Servo Board is also connected to the Mainboard (see schematic).

The Servo Board signal pins 4-6 are fed back into the Mainboard and then to the Eyes & Servo Board.

The Mainboard requires 1x 3.3V and 1x 6V power supply (the second 6V terminal merely forwards the 6V to the head).

The Mainboard is connected to the Eyes & Servo Board via a 14-pin flat ribbon cable (about 50cm in length) and a 6V line from terminal to terminal.

Eyes and Servo Board:

Three servos are directly connected to the Servo Board, and signals are transmitted from the PWM board upwards via flat ribbon cable.

The displays are plugged directly into the 2 pin headers (FEMALE!).
It might be wiser to solder the servo pins on the backside, please pay attention to the labels on the front side!