The Doorman - Eyeball with ball joint

thingiverse

Following modification implemented: * Eyeball with built-in ball joint socket * Improved main eye holder frame to support the eyeball ball joint, and with [SG90 servo](https://www.aliexpress.com/store/product/Motor-Stepper-Servo-Robot-Shield-for-Arduino-I2C-v2-Kit-w-PWM-Driver-TOP/612195_32243209515.html?spm=2114.12010615.8148356.1.1d4b85f2K92qHx) screw mount holes * Lighted eyeballs (2x5mm [clear white LED](https://www.aliexpress.com/store/product/100Pcs-F5-5MM-White-Color-White-Light-Round-Superbright-LED-Lamp/612195_1852090868.html?spm=2114.12010615.8148356.28.6acc546ahCe7tE) and one [220 ohm resistor](https://www.aliexpress.com/store/product/1-4w-Resistance-1-Metal-Film-Resistor-Bag-30-kinds-Each-20-Total-600pcs/612195_1859131397.html?spm=2114.12010615.8148356.9.1fef1110dFp2Qo)) * [Arduino Nano](https://www.aliexpress.com/store/product/2PCS-Nano-3-0-Controller-Compatible-For-arduino-Nano-CH340-USB-Driver-Nano-V3-0-ATmega328/612195_32731691067.html?spm=2114.12010615.8148356.3.4a39468bQi7GGP) and [expansion shield](https://www.aliexpress.com/item/NANO-I-O-Expansion-sensor-Shield-Module-for-for-Ar-UNO-R3-Nano-V3-0/1859099943.html?spm=a2g0s.9042311.0.0.27424c4dZ2ZN7o) mount * [HW-1004](https://www.aliexpress.com/item/Mini-IR-Pyroelectric-Infrared-PIR-Motion-Human-Sensor-Automatic-Detector-Module-AM312-Sensor-DC-2-7/32862878941.html?spm=a2g0s.9042311.0.0.27424c4dZ2ZN7o) or [AM312](http://a.co/d/hRwgZ6g) mini PIR sensor mounted inside the nostril * [LM2596 buck converter](https://www.aliexpress.com/store/product/DC-DC-Step-Down-Buck-Converter-Module-LM2596-3-2V-40V-To-1-25V-35V-Adjustable/612195_32845321243.html?spm=2114.12010615.8148356.16.20647457l3YPxb) for 5V power supply. No additional capacitor is needed. Optional [DC Power supply jack](https://www.aliexpress.com/store/product/10Pcs-3A-12v-For-DC-Power-Supply-Jack-Socket-Female-Panel-Mount-Connector-5-5mm-2/612195_32838214586.html?spm=2114.12010615.8148356.5.c7256cccGob6XS) [Demo1](https://youtu.be/JIThpATz7jM) [Demo2](https://youtu.be/QgR6jgbbOzE) * Note: apply a thin layer of [silicone lubricating grease](http://a.co/d/a1bGzaj) in the eyeball ball joint to help smooth movement. * Control rod is made of [Carbon steel wire](http://a.co/d/ezR2kz1)