Uploaded February 2024 | Updated September 2026, 2 weeks ago

---

JLCPCB 1-20 layer PCB from $2, PCBA from $0, Sign up to Get $54 Coupons here: jlcpcb.com/?from=bitluni Available for FR-4, Flex PCB, Rogers,PTFE Teflon, Copper Core and Aluminum. (Sponsor)

This video showa a little game console that I designed around the CH32V003 risc-V microcontroller. The interesting part is that it drives the 240 LED screen directly from 16 pins. The way tri-state buffers work allows to utilize the third state to drive many LEDs with only few pins. On top of that the video explains some of the design considerations of this little project and how get is cheaply manufactured.

WCH CH32X035 Microcontroller: aliexpress.bitluni.net/CH32X035 (affiliate link)

psychogenic made a ki-cad scripting plugin that can generate beautiful charlieplex schematics:
github.com/psychogenic/kicad-skip
github.com/psychogenic/kicad-skip/blob/main/src/skip/examples/charlieplex.py

0:00 Megaplex intro
0:41 Bad Apple Demo
1:29 Charlieplexing
6:48 Games
7:38 Schematics
9:42 PCB Design
10:27 JLC PCB Assembly
12:40 CR and LIR Batteries
13:54 USB and Improvements
14:47 Support

Github Sponsors: github.com/sponsors/bitluni
Patreon: patreon.com/bitluni
Channel membership: youtube.com/channel/UCp_5PO66faM4dBFbFFBdPSQ/join
Paypal: paypal.me/bitluni

bitluni live: youtube.com/@bitlunilive
Twitch: twitch.tv/bitluni
Mastodon: https://chaos.social/@bitluni
Twitter: @bitluni
Discord: link.bitluni.net/discord