This repository collects hardware documentation, schematics, pinouts, and example code for embedded development boards used in personal and professional IoT/embedded projects.
Each board has its own folder with a detailed SUMMARY.md, schematic images, datasheet references, and demo source code.
| Board | MCU | Connectivity | Form Factor | Folder |
|---|---|---|---|---|
| ESP32-2424S012 | ESP32-C3 (RISC-V, 160 MHz) | Wi-Fi b/g/n · BLE 5.0 | 1.28″ round display module | ESP32-2424S012/ |
| JC-ESP32P4-M3-DEV | ESP32-P4 (dual-core RISC-V, 400 MHz) + ESP32-C6 co-proc | Wi-Fi 6 · BT 5 · 100 M Ethernet | Full dev board with MIPI display | ESP32-P4-M3-DEV/ |
| HyperPixel 2.1 Round | — (display only) | — | 2.1″ round IPS touch display · RGB666 parallel | HyperPixel-Round/ |
| Waveshare RP2350B-Plus-W | RP2350B (dual-core Cortex-M33 / RISC-V, 150 MHz) | Wi-Fi 4 · BT 5.2 | Pico-compatible · 41 GPIO · 16 MB flash | RP2350B-Plus-W/ |
1.28″ round TFT smart-watch / IoT display module
Manufacturer: Shenzhen Jingcai Intelligent (深圳市晶彩智能有限公司)
| MCU | ESP32-C3-MINI-1U — single-core RISC-V @ 160 MHz, 4 MB flash |
| Display | 1.28″ circular IPS TFT — 240 × 240 px — GC9A01 driver (SPI) |
| Touch | CST816D capacitive — I2C @ 0x15 (SDA=GPIO4, SCL=GPIO5) |
| Power | USB Type-C · TP4054 Li-Ion charger · 3.3 V DC-DC |
| Debug | USB full-speed (native ESP32-C3 USB-JTAG, no separate chip) |
→ Copilot instructions template
High-performance development board with MIPI display, Ethernet, and dual-USB
Manufacturer: Guition / JC
| Main MCU | ESP32-P4 — dual-core RISC-V @ 400 MHz · 16 MB flash · 32 MB PSRAM |
| Co-processor | ESP32-C6-MINI — Wi-Fi 6 (802.11ax) + Bluetooth 5 / BLE (SDIO) |
| Display | MIPI 2-lane DSI · JD9365 driver · 800 × 1280 px |
| Touch | GT911 capacitive — I2C (SDA=GPIO7, SCL=GPIO8) |
| Ethernet | 100 Mbps IP101 PHY |
| USB | USB 2.0 OTG HS + USB 1.1 OTG FS (both Type-C) |
| Audio | ES8311 codec · onboard mic · 8 Ω / 2 W speaker header |
| Storage | SDIO 3.0 TF card · Li-Ion battery connector |
→ Full hardware reference
→ Copilot instructions template
2.1″ round IPS capacitive touchscreen — RGB666 parallel interface
Manufacturer: Pimoroni
| Display | 2.1″ circular IPS — 480 × 480 px — ST7701S driver |
| Touch | FT5x06 capacitive — I2C @ 0x15 |
| Interface | RGB666 parallel (18-bit DPI) + 3-wire SPI init |
| Pixel Clock | 19.2 MHz |
| Designed for | Raspberry Pi 40-pin header — adaptable to ESP32-P4 |
Raspberry Pi RP2350B development board — Pico-compatible with Wi-Fi & Bluetooth
Manufacturer: Waveshare
| MCU | RP2350B — dual-core Cortex-M33 or RISC-V @ 150 MHz |
| RAM / Flash | 520 KB SRAM · 16 MB QSPI flash |
| GPIO | 41 multi-function GPIO (vs 26 on standard Pico 2) |
| ADC | 6× 12-bit channels |
| PIO | 12 state machines (3 blocks) |
| Wireless | CYW43439 — Wi-Fi 4 (802.11n) · Bluetooth 5.2 BLE |
| USB | USB 1.1 Type-C |
| Form factor | Raspberry Pi Pico / Pico W compatible |