
KICAD reflow oven
leodk27/Reflow-oven-Custom
Reflow oven project based on custom PCB and programming

Hardware and Firmware for an ESP8266-based reflow oven controller
Reflow is an open-source printed circuit board by hjf, from the hjf/ReflowOven repository on GitHub, published under the MIT licence. It is a 2-layer board of 58.4 × 101.6 mm with 53 parts on 31 nets, routed with 291 tracks and 34 vias.
It is built around the ESP-12E, HLK-PM03 and MAX31856, with the MOC3063M among its other parts. Its parts include 16 resistors, 12 capacitors, 7 connectors, 5 ICs and 3 diodes. It belongs with the ESP8266 boards of this library.
Instrucciones en español mas abajo
This is a simple PID controller with a web interface for a reflow oven. It requires a MAX31856, a K-type thermocouple, a MOC3041 optotriac, a suitable triac for your mains voltage, and a ESP-12E module.
The Arduino-based firmware is included. It requres tzapu's WiFiManager to set up. It also includes ArduinoOTA for remote firmware upgrades.
The KiCAD files are available too, but this is a simple circuit that can, obviously, be built out of standard arduino modules. Instead of the triac and optotriac, a SSR (Solid State Relay) can be used. A mechanical relay cannot be used as this circuit switches the load several times per second for accurate temperature control.
Este es un controlador PID muy simple, con una interfaz web, para controlar un horno de soldadura por refusion. Necesita un MAX31856, una termocupla tipo K, un optotriac MOC3041, un triac adecuado para tu voltaje de linea, y un modulo ESP-12E
Se incluye el firmware basado en Arduino. Necesita la libreria WiFiManager de tzapu para la configuracion. Tambien incluye ArduinoOTA para actualizaciones remotas.
También se incluyen los archivos de KiCAD, pero este es un circuito tan simple que obviamente se puede armar con modulos Arduino comunes. En lugar del triac y optotriac, se puede usar un modulo SSR. No es posible usar un relay mecánico ya que el circuito conmuta la salida varias veces por segundo para un control preciso de la temperatura.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 14 | R | Resistors_SMD:R_0805 | R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, R13, R14, R15, R16 |
| 11 | C | Resistors_SMD:R_0805 | C2, C3, C4, C5, C6, C7, C8, C9, C10, C11, C12 |
| 6 | MountingHole | Mounting_Holes:MountingHole_3.2mm_M3 | MH1, MH2, MH3, MH4, MH5, MH6 |
| 4 | Screw_Terminal_01x02 | w_conn_mkds:mkds_1,5-2 | J1, J2, J6, J7 |
| 3 | Conn_01x06_Female | Pin_Headers:Pin_Header_Straight_1x06_Pitch2.54mm | J3, J4, J5 |
| 2 | LED_ALT | LEDs:LED_0805_HandSoldering | D2, D3 |
| 2 | MAX31856 | Housings_SSOP:TSSOP-14_4.4x5mm_Pitch0.65mm | U4, U5 |
| 2 | R | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2 |
| 1 | C | Capacitors_Tantalum_SMD:CP_Tantalum_Case-C_EIA-6032-28_Hand | C1 |
| 1 | ESP-12E | ESP8266:ESP-12E_SMD | U3 |
| 1 | Fuse | fc211:FC-211 | F1 |
| 1 | HLK-PM03 | Power_Supply:HLK-PM03 | U2 |
| 1 | LOGO | shock:SHOCK10X10 | G*** |
| 1 | LOGO | shock:shock15mm2 | G*** |
| 1 | MOC3063M | Housings_DIP:DIP-6_W7.62mm | U1 |
| 1 | Q_TRIAC_A1A2G | w_to:to220_std_14cw | D1 |
| 1 | Varistor | Varistors:RV_Disc_D12_W3.9_P7.5 | RV1 |
It measures 58.4 × 101.6 mm and has 2 copper layers, 1.6 mm thick.
53 parts, built around the ESP-12E, HLK-PM03, MAX31856 and MOC3063M. 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 hjf/ReflowOven repository on GitHub, at the commit this page was made from: the board is KiCAD files/reflow.kicad_pcb. 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).

leodk27/Reflow-oven-Custom
Reflow oven project based on custom PCB and programming




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