Reflow controller
About the Reflow controller PCB
Reflow controller is an open source STM32 PCB design by atx, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 77.5 × 42.3 mm, with 48 components from 25 distinct parts.
Its main chip is the STM32F030C8T, from the STM32 family. Other key parts include the MAX6675, ENC28J60-SSOP, REG1117 and LM75. By type, the board carries 14 capacitors, 14 resistors, 6 connectors, 5 ICs, 4 diodes and 1 crystal.
From the project
Reflow Oven Controller
To build the firmware you have to do the following:
Main components on the Reflow controller
Reflow controller bill of materials (BOM)
48 components, 25 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MAX6675 | dp_devices-SO-8 | U1 |
| 1 | ENC28J60-SSOP | microchip-enc28j60-SSOP28 | U2 |
| 1 | REG1117 | burr-brown-3-SOT223 | U3 |
| 1 | STM32F030C8T | lqfp-48 | U4 |
| 1 | LM75 | dp_devices-SO-8 | U5 |
| 1 | 25MHz | Crystal_HC49-U_Vertical | X1 |
| 1 | CONN_2 | SIL-2 | P1 |
| 1 | CONN_5 | SIL-5 | P2 |
| 4 | CONN_1 | 1pin | P3, P4, P5, P6 |
| 1 | J0026D21BNL | J0026D21BNL | H1 |
| 1 | CONN_3 | SIL-3 | K1 |
| 1 | SPST | SW_PUSH_SMALL | SW1 |
| 4 | LED | LED-0805 | D1, D2, D3, D4 |
| 1 | FERRITE_BEAD | c_0805 | FB1 |
| 1 | 1uF | c_0805 | C1 |
| 2 | 10uF | c_0805 | C2, C11 |
| 2 | 22pF | c_0805 | C3, C4 |
| 1 | 4.7uF | c_0805 | C5 |
| 8 | 100nF | c_0805 | C6, C7, C10, C13, C14, C15, C17, C18 |
| 2 | 1k8 | c_0805 | R1, R2 |
Show 5 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 10k | c_0805 | R3 |
| 4 | R | c_0805 | R4, R5, R6, R7 |
| 4 | 49.9 1% | c_0805 | R8, R9, R10, R11 |
| 2 | 120 | c_0805 | R12, R13 |
| 1 | 2k32 | c_0805 | R14 |
Reflow controller design files
The KiCad project lives in the atx/reflow-controller repository on GitHub; these links point at the commit this page was built from.
- Layoutpcb/reflow.kicad_pcb
Reflow controller: common questions
What microcontroller does the Reflow controller use?
The Reflow controller is built around the STM32F030C8T, from the STM32 family.
How big is the Reflow controller PCB?
The Reflow controller measures 77.5 × 42.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Reflow controller?
48 components, from 25 distinct parts. The full bill of materials is listed on this page.
Where can I download the Reflow controller design files?
From the atx/reflow-controller repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Reflow controller design in my own project?
Yes, under the terms of its GPL-3.0 license, which atx chose for the repository.
Can I test firmware for the Reflow controller without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug STM32 firmware against it before you order a PCB.
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