Omarbelh/FlashCore1Hybrid USB-C SPI Flash & EEPROM programmer based on CH341A and ESP32-S3.
FlashCore is an open-source printed circuit board by Omarbelh, from the Omarbelh/FlashCore repository on GitHub, published under the MIT licence. It is a 2-layer board of 27.5 × 69 mm with 54 parts on 103 nets, routed with 332 tracks and 107 vias.
It is built around the ESP32-S3-WROOM-1-N8, CH341A and AMS1117-3.3, with the AP2112K-3.3, USBLC6-2SC6 and S8050 among its other parts. Its parts include 18 resistors, 8 ICs, 6 capacitors, 6 diodes and 6 switches. It belongs with the interfaces and adapters boards and the ESP32 boards of this library.
Powered by CH341A + ESP32-S3
A custom hardware programmer designed for learning, development, and future standalone memory programming.
FlashCore V1 is an open-source hardware project that combines the reliability of the CH341A USB programmer with the flexibility of an ESP32-S3.
The goal is to create a modern memory programmer that can operate both from a computer and, in future versions, as a standalone device with its own graphical user interface.
This project is also a personal journey to improve my skills in:
| Component | Description |
|---|---|
| CH341A | USB Memory Programmer |
| ESP32-S3-WROOM-1 | Standalone Controller |
| AP2112K | 3.3V LDO Regulator |
| USB-C | Power & Data |
| TFT Display | User Interface |
| Push Buttons | Read / Write / Erase / Menu |
| Status LEDs | Power & Status |
| Buzzer | Audio Feedback |
| Stage | Status |
|---|---|
| Concept | ✅ Completed |
| Schematic | ✅ Completed |
| PCB Layout | 🚧 In Progress |
| Prototype | ⏳ Planned |
| Firmware | ⏳ Planned |
| Standalone Mode | ⏳ Planned |
FlashCore/
│
├── Hardware/
│ ├── KiCad/
│ ├── PDF/
│ └── Images/
│
├── Firmware/
│
├── Documentation/
│
├── README.md
└── LICENSEContributions, suggestions, and ideas are always welcome.
If you find an issue or have an idea for improving FlashCore, feel free to open an Issue or submit a Pull Request.
This project is released under the MIT License.
⭐ If you like this project, consider giving it a star!
| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 10kΩ | Resistor_SMD:R_0603_1608Metric | R7, R10, R11, R12, R13, R17, R18 |
| 2 | 100Ω | Resistor_SMD:R_0603_1608Metric | R19, R20 |
| 2 | 104 | Capacitor_SMD:C_0603_1608Metric | C1, C2 |
| 2 | 20p | Capacitor_SMD:C_0603_1608Metric | C5, C6 |
| 2 | 22Ω | Resistor_SMD:R_0603_1608Metric | R4, R5 |
| 2 | 330Ω | Resistor_SMD:R_0603_1608Metric | R14, R15 |
| 2 | 5.1kΩ | Resistor_SMD:R_0603_1608Metric | R2, R3 |
| 2 | Conn_01x07 | Connector_PinSocket_2.54mm:PinSocket_1x07_P2.54mm_Vertical | J2, J4 |
| 2 | LED | LED_SMD:LED_0603_1608Metric | D3, D4 |
| 2 | Power | LED_SMD:LED_0603_1608Metric | D1, D1 |
| 1 | -10kΩ | Resistor_SMD:R_0603_1608Metric | R6 |
| 1 | 0R | Resistor_SMD:R_0805_2012Metric | R1 |
| 1 | 12M | Crystal:Crystal_HC49-U_Vertical | Y1 |
| 1 | 1KΩ | Resistor_SMD:R_0603_1608Metric | R16 |
| 1 | 1µF | Capacitor_SMD:C_0603_1608Metric | C3 |
| 1 | 222 | Resistor_SMD:R_Array_Convex_4x0603 | RN1 |
| 1 | 472 | Capacitor_SMD:C_0603_1608Metric | C4 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U1 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U5 |
| 1 | BOOT | Button_Switch_THT:SW_PUSH_6mm | SW5 |
| 1 | Buzzer | Buzzer_Beeper:Buzzer_12x9.5RM7.6 | BZ1 |
| 1 | CH341a | Package_SO:SOIC-28W_7.5x17.9mm_P1.27mm | U2 |
| 1 | ERASE | Button_Switch_THT:SW_PUSH_6mm | SW1 |
| 1 | ESP32-S3-WROOM-1 | RF_Module:ESP32-S3-WROOM-1 | U6 |
| 1 | I2C EEPROM | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U4 |
| 1 | MENU | Button_Switch_THT:SW_PUSH_6mm | SW3 |
| 1 | Polyfuse | Fuse:Fuse_1812_4532Metric | F1 |
| 1 | READ | Button_Switch_THT:SW_PUSH_6mm | SW2 |
| 1 | RESET | Button_Switch_THT:SW_PUSH_6mm | SW6 |
| 1 | RUN | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | Run | LED_SMD:LED_0603_1608Metric | D2 |
| 1 | S8050 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | SPI FLASH | Package_SO:SOIC-16W_7.5x10.3mm_P1.27mm | U3 |
| 1 | TFT-MI2120 | Display:CR2013-MI2120 | U7 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U1 |
| 1 | USB_A | connectors:USB_A_MALE_Generic | J1 |
| 1 | USB_C_Receptacle_USB2.0 | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J5 |
| 1 | WRITE | Button_Switch_THT:SW_PUSH_6mm | SW4 |
| 1 | ZIF-16 | Package_DIP:DIP-16_W7.62mm | J3 |
It measures 27.5 × 69 mm and has 2 copper layers, 1.6 mm thick.
54 parts, built around the ESP32-S3-WROOM-1-N8, CH341A, AMS1117-3.3 and AP2112K-3.3. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
From the Omarbelh/FlashCore repository on GitHub, at the commit this page was made from: the board is Hardware/FlashCore.kicad_pcb and its schematic Hardware/ESP32_Standalone.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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