ByteBoi 2.0

Assemble a handheld and program small games.

DIY consoleProgrammable gamesCircuitBlocks

Price: $159
Availability: Listed
Design: Schematics

Where to buy · 2 shops

Compare with similar devices

Bring along: Kit assembly and a computer for CircuitBlocks.
Keep in mind: Match the panel and board revision when choosing firmware.

Source checked · Sep 16, 2026

ByteBoi 2.0 — Image credit
Maker product image · CircuitMess

(02) Blueprint

What’s published

Schematics published

CircuitMess publishes a schematic PDF and the Arduino library source; no editable PCB/KiCad source or Gerbers were found.

Design files 2

Source 1

CircuitMess/ByteBoi-LibraryfirmwareMIT0

git clone https://github.com/CircuitMess/ByteBoi-Library.git

Key parts 1

ESP32-WROOM-32-N4 All ESP32 devicesMCUDatasheet

Research notes

Schematic and booklet PDFs both verified 200 on cdn.shopify.com. ByteBoi-Library repo (MIT) is only the Arduino display/driver library, no hardware folder. CircuitMess's own blog post 'Open source schematics and software are here' lists ByteBoi among covered devices but links no files directly beyond these CDN PDFs.

Every link checked 2026-09-27.

Hand this device to your agent. Everything on this page, as clean Markdown and JSON: specs, shops, prices, design files, parts.

Markdown JSON

Made the ByteBoi 2.0? Put the badge on your README; it links here, with every shop that sells it.

Specifications

Build and package

Project: DIY retro handheld console; roughly 1.5 hours; beginner-friendly, ages 9+
Electronics included: Main board, speaker, LiPo battery, microSD card and pushbuttons
Case included: Acrylic casing, button caps and screws
Assembly tool: Screwdriver included in the 2025 booklet

Hardware in the linked v2.3 drawing

Processor: ESP32-WROOM-32-N4
Display: Drawing labels a 2.8-inch TFT with a 12-pin connection
Memory and storage: APS6404L-3SQR-SN PSRAM and a microSD socket appear in the drawing
Battery: 600 mAh LiPo with a two-pin JST 1.25 connection
USB and audio: USB-C, CH340C serial interface, TP4054 charger and TC8002D speaker amplifier

Use and programming

Games: Preloaded games; create more with CircuitBlocks
Robot control: Can control a separately obtained Wheelson 2.0
Languages: 2025 booklet lists CircuitBlocks, Python and Arduino C++
Radio hardware: 2025 booklet lists Wi-Fi and Bluetooth; enabled features depend on firmware
Stock recovery: Booklet directs builders to CircuitBlocks Restore Firmware with ByteBoi powered on and the correct serial port selected
Display library: Official source includes ILI9341 and ST7789 targets at 240 × 320 pixels; match the device revision

What still needs checking

The library supports multiple display variants; the supplied 2.0 panel controller and exact variant mapping have not been confirmed.
MicroSD capacity, USB-cable inclusion, measured runtime, dimensions and weight remain unverified.
A revision-matched standalone firmware binary and current Arduino/Python setup instructions have not been verified.
The Wheelson control radio protocol and pairing steps are not specified in the reviewed 2.0 product page.

Downloads & docs

ByteBoi 2.0 productcircuitmess.com Exact 2.0 guide and downloadscircuitmess.com ByteBoi 2.0 creator booklet PDFcdn.shopify.com ByteBoi 2.0 schematic PDF, internal v2.3cdn.shopify.com CircuitBlocks online editor — sign-in requiredcode.circuitmess.com ByteBoi library sourcegithub.com ByteBoi display implementationsraw.githubusercontent.com

Source & revision notes

Maker listing checked Sep 15, 2026. Detailed documentation reviewed Sep 16, 2026. Not hands-on tested.

Price is a dated listing; confirm with the maker.

This now links to the individual ByteBoi 2.0 product, rather than the RC Bundle. The product image also comes from the current 2.0 gallery.

The current listing confirms a programmable DIY console. The linked v2.3 drawing now identifies its processor and battery; the guide lists wireless hardware, but the Wheelson pairing protocol and exact panel variant remain unconfirmed.

The exact maker-linked guide and schematic were reviewed on 2026-09-16. Board drawing revisions and firmware compatibility limits are recorded in the detailed profile; listing prices retain their earlier review date.

Capability corrected 2026-09-19: this entry's specifications name Bluetooth, but the Bluetooth capability was not set, so the filter and the comparison table under-reported it.

Independent source review; no assembly, game, radio or flashing tests.

The linked schematic is named ByteBoi V2.3 internally. The 2.0 product is separate from the RC Bundle.

The store’s 8-bit wording describes its retro-game positioning; it is not used as a CPU architecture specification.

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