A high-performance USB-C powered reflow hotplate with Bluetooth connectivity and intelligent temperature control!
Key Features • PCB • Case • Heatbed • Credits • License
- USB-C Power Delivery up to 100W (20V) using TI's TPS25730D
- STM32WB55CG microcontroller with Bluetooth support
- Large
400mm x 400mm200mm x 200mm120mm x 120mm (for now) flexible heatbed for big PCB reflow - Dual temperature sensing with MAX6675 thermocouple and PT1000 RTD
- OLED display with rotary encoder for easy control and preset management
- NFC support for wireless temperature profile transfer and preset storage
- Gate driver for precise PWM heatbed control
- Current and board temperature monitoring for safety
- 32MB Flash memory for graphics and data storage
- Portable design with custom acrylic / nylon case
Designed in KiCad!
Front:
Back:
Ground Plane:
Power Plane:
Board dimensions: 50mm x 150mm
Custom designed case in OnShape with practical features:
Features:
- USB-C port cutout with flush cable routing
- Screw terminal access for heatbed and temperature sensor connections
- Heatset inserts for secure assembly with slotted cylindrical head screws
- High-quality materials: PA11-HP Nylon base with acrylic top for visibility
- Rounded corners for aesthetics and safety
The heatbed uses JLCPCB's flexible heater technology for cost-effective large-area heating.
The flexible heater connects to the main PCB via screw terminals!
This project uses:
- KiCad
- OnShape for case design
- Blender for 3D renders
- STM32CubeMX
- Inspiration from this reflow hotplate project
- Arduino GFX Tool for OLED UI/UX design
- Cyberboard – A Raspberry Pi Pico-sized STM32 development board with Bluetooth
- Trace – A comprehensive PCB ruler with reference footprints
- CyberCard – A Cyberpunk themed NFC hacker card
- Niveles De Niveles – Real-time flood alert app
- Linea – An EMR tablet
- Tamaki – A cute HackPad
MIT
notaroomba.dev · GitHub @NotARoomba ·