zardobots

simple robots for fun

code

Hello world

Start here! Blink an LED. This will verify that we have a working toolchain.

Button test

add a button to test input functionality

servo test

Attach the battery wires, with branch for servo move a servo through a full range of angles, calibrate if needed

Time timer

Timer system to show time. Time is the deal here. Like a Time Timer but with a more inscrutable interface.

Monitor sensor

Attach the analog sensor Test analog input and serial debug output

Light Follower

Uses two LDR sensors in voltage divider configuration to generate an analog signal proportional to the illumination difference between them. With an error correction loop a servo can be used to steer the sensor pod toward or away from a light source.

Zardoz! (bonus round)

Use digital signal filters and a microphone input to control the wobbling head and glowing eyes of everyone's favorite late stage post futuristic floating apocalyptic murder idol.

Schedule:

install, setup, intros, settle in

Here's a link to the guide from Seeed in case there's trouble getting things working https://wiki.seeedstudio.com/XIAO_ESP32C3_Getting_Started/

solder an LED and resistor

use "Hello World" code

solder a button

use "button test" code

solder a servo and battery cable to board

use "servo test" code

attach photocells to servo horn (ladyhead or paddle), solder to board

use "monitor sensor" code, serial monitor or graph use "light follower" code, work with defines to tweak

time to decorate and mess with code

if there's any time left, we can do a few zardoz units, have a whistling party

The Rest

3D files

These are the STL files you can use to print out more parts if you like.

Schematics

Diagrams to show electrical connections for each project

Partial BOM

Arduino: https://www.mouser.com/ProductDetail/713-113991054

Servo: https://www.mouser.com/ProductDetail/426-SER0053

LDR: NTE part# 02-LDR23

Alarmingly cheap microphone with preamp: https://www.amazon.com/dp/B00XT0PH10?psc=1&ref=ppx_yo2ov_dt_b_product_details

Battery: YDL 102050 https://ydlbattery.com/products/3-7v-1000mah-102050-lithium-polymer-ion-battery?variant=42093651787929

JST-PH 2.0 cable for battery: https://www.amazon.com/dp/B07NWNPB77?psc=1&ref=ppx_yo2ov_dt_b_product_details

akatrevorjay / zardobots