You will get these components in your first STEM Box for Spencer
Table of content
G'day,
A few backers asked me to write a bit more about the content of individual STEM Boxes so I'll tell you something about Spencer's components.
Spencer, it's time to meet your maker (pun)
I've just created a brief overview of the essential parts you'll get with your Spencer:
1. Speaker - makes sound and Spencer needs this one to talk. It's plugged with a small cable into the motherboard (number 14)
2. Acrylic casing - 6 sheets of plastic that protect Spencer's guts
3.Brain board - this circuit board has an on-board ESP32 (dual core CPU with RAM, FLASH, and Wi-Fi built-in), RTC (real time clock), power supply circuitry, Micro USB port and a Micro SD card socket
4. Brass spacers - they ensure spencer's casing is sturdy
5. Audio connector 3.5mm - you'll need to solder this one by yourself so that you can connect Spencer to an external speaker
6. Male headers - these are used for connecting the front panel PCB (7) with the motherboard (14)
7. Front panel PCB - this one has a beautiful grid of 128 individually-addressable RGB LEDs. The LEDs that we're using are called WS2812 and they're actually quite interesting because every LED has a small chip controller that communicates with Spencer's brain using a digital communication protocol usually dubbed "1-wire".
8. Female headers - used for connecting the front panel with the motherboard
9. Sound board - this PCB has an integrated 3.4W amplifier and a DAC (digital to analog converter). It communicates with Spencer's brain using an I2S protocol which is basically a digital communication protocol invented especially for audio transfer.
10. THT (through hole technology) resistors - Spencer needs these to work and you'll solder them by hand
11. Big red button - lights up and makes a click click sound
12. Screws and nuts - righty tighty, lefty loosey
13. 1000uF electrolytic capacitor - this big capacitor is needed for Spencer's amplifier to work. You'll solder this one by hand.
14. Motherboard - this PCB connects the Brain board with the Sound board, front panel PCB, big red pushbutton and also has a microphone onboard
Spencer!
Stay tuned for more info!
- Albert and the crew
Sign up for a 10% off your first purchase
Read stories how our founder Albert turned his childhood passion into CircuitMess, and get exciting DIY project ideas you can do with your kids at home for free.
Read more
Science, not sugar! 4 easy Halloween STEM activities for a brain boost
Halloween's just around the corner, which means one thing: a candy avalanche is headed your way! But hey, before you div...
Parents! Here's how to build a family-friendly STEM lab at home
I know, I know. The idea of building a lab for your kids in your house sounds like a bad idea. THINK OF THE MESS! But re...
Turning Childhood Dreams into Reality: Supporting Croatian Tech Innovators
Like many children, Martin M., CEO of Devōt, had a knack for taking apart small gadgets. Remotes, clocks, old phones, an...