https://manthrax.github.io/exobot/index.html
BOM:
DROK DC Buck Converter x2 https://www.amazon.com/DROK-Numerical-Switching-Adjustable-Stabilizers/dp/B00BYTEHQO/ref=pd_bxgy_23_img_2?ie=UTF8&psc=1&refRID=QJJMT22ZZ7SP7H3W6H8K
8*2 = 16$
Adafruit 16-Channel PWM / Servo HAT for Raspberry Pi - Mini Kit
20$ bucks.
Raspberry Pi 3 Model B Motherboard https://www.amazon.com/Raspberry-Pi-RASP-PI-3-Model-Motherboard/dp/B01CD5VC92/ref=sr_1_1?ie=UTF8&qid=1478479138&sr=8-1&keywords=raspi+3 37$
TowerPro SG90 9G Micro Servo 10pk For RC Airplane Boat Helicopter Robot Controls https://www.amazon.com/TowerPro-Micro-Airplane-Helicopter-Controls/dp/B01D6FEI1W/ref=sr_1_2?ie=UTF8&qid=1478479177&sr=8-2&keywords=servo+10+pack
22$
16+20+37+22 = 95$
sudo apt-get update sudo apt-get install node sudo npm install http sudo npm install express sudo npm install ws sudo npm install adafruit-pca9685
sudo nano /etc/rc.local
Add this before the "exit 0" line.. this makes the bot code launch at startup.
su pi -c '~/bot/exobot/nodebot.sh < /dev/null &'