

ReflowESP
ESP32 powered reflow controller
- Size
- 72 × 72 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 64
- Nets
- 59
- Pads
- 207
- Tracks, vias
- 313, 160
- Pours
- 15
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 31 Oct 2021
- Updated
- 20 Feb 2023
Overview
ReflowESP is an open-source printed circuit board by Weissnix4711, from the Weissnix4711/ReflowESP repository on GitHub. It is a 2-layer board of 72 × 72 mm with 64 parts on 59 nets, routed with 313 tracks and 160 vias.
It is built around the ESP32-WROVER-E(4MB), MAX31855KASA+T and BSS138, with the TC1 among its other parts. Its parts include 15 resistors, 13 capacitors, 13 connectors, 4 ICs and 4 inductors. It belongs with the ESP32 boards of this library.
Main components
4ESP32-WROVER-E(4MB)
SMD,18x31.4mmSMD,18x31.4mm WiFi Modules ROHSEspressif SystemsWiFi ModulesMAX31855KASA+T
SO-8-40℃~+125℃ 14 1500uA 3V~3.6V Built-in temperature sensor SPI Thermocouple-to-Digital Converter SO-8 ADCs/DACs - Special Purpose ROHSMaxim Integrated (Analog Devices)ADCs/DACs - Special PurposeBSS138
SOT-23-55℃~+150℃ 1 N-channel 1.1Ω@10V、1.2Ω@4.5V 1.2V 1.7nC@10V 17.5pF 340mA 350mW 50V 6.5pF N-Channel SOT-23 MOSFETs ROHShongjiachengMOSFETsTC1
-- Toggle Switches ROHSC&KPre-Ordered Products
README
README.mdReflowESP
ESP32-WROOM-32 Reflow controller.
Parts
64| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 10k | Resistor_SMD:R_0805_2012Metric | R5, R6, R7, R8, R9, R13, R14, R15 |
| 6 | 100n | Capacitor_SMD:C_0805_2012Metric | C1, C3, C4, C5, C11, C12 |
| 4 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_Pad | H1, H2, H3, H4 |
| 4 | ferrite | Inductor_SMD:L_0805_2012Metric | L1, L2, L3, L4 |
| 3 | BSS138 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3 |
| 2 | 10n | Capacitor_SMD:C_0805_2012Metric | C10, C13 |
| 2 | 10u | Capacitor_SMD:C_0805_2012Metric | C2, C7 |
| 2 | 1u | Capacitor_SMD:C_0805_2012Metric | C6, C9 |
| 2 | 5k | Resistor_SMD:R_0805_2012Metric | R1, R4 |
| 2 | MAX31855KASA | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2, U4 |
| 2 | R_Small | Resistor_SMD:R_0805_2012Metric | R10, R11 |
| 2 | TestPoint | TestPoint:TestPoint_Pad_D1.0mm | TP1, TP2 |
| 1 | 10u | Capacitor_SMD:CP_Elec_4x5.4 | C8 |
| 1 | 1N5819 | Diode_SMD:D_SOD-123 | D1 |
| 1 | 1k5 | Resistor_SMD:R_0805_2012Metric | R3 |
| 1 | 220 | Resistor_SMD:R_0805_2012Metric | R2 |
| 1 | ?? | Resistor_SMD:R_0805_2012Metric | R12 |
| 1 | Conn_01x05 | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J7 |
| 1 | DISPLAY | Connector_PinHeader_2.54mm:PinHeader_1x07_P2.54mm_Horizontal | J6 |
| 1 | ESP32-WROVER-E | Espressif:ESP32-WROVER-E | U3 |
| 1 | EXT_V_SSR | TerminalBlock_KF301:TerminalBlock_KF301-2P | J9 |
| 1 | NCP1117-3.3_SOT223 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U1 |
| 1 | PIEZO_SEL | Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP1 |
| 1 | PROG | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J5 |
| 1 | PWRLED | LED_SMD:LED_0805_2012Metric | D2 |
| 1 | SERVO | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Horizontal | J4 |
| 1 | SSR1 | TerminalBlock_KF301:TerminalBlock_KF301-2P | J11 |
| 1 | SSR2 | TerminalBlock_KF301:TerminalBlock_KF301-2P | J12 |
| 1 | SSR3 | TerminalBlock_KF301:TerminalBlock_KF301-2P | J13 |
| 1 | SW_BOOT | Button_Switch_SMD:SW_Push_SPST_NO_Alps_SKRK | SW2 |
| 1 | SW_RESET | Button_Switch_SMD:SW_Push_SPST_NO_Alps_SKRK | SW1 |
| 1 | Speaker | Buzzer_Beeper:MagneticBuzzer_ProSignal_ABI-010-RC | LS1 |
| 1 | TC1 | TerminalBlock_KF301:TerminalBlock_KF301-2P | J3 |
| 1 | TC2 | TerminalBlock_KF301:TerminalBlock_KF301-2P | J8 |
| 1 | USB_B_Micro | Connector_USB:USB_Micro-B_Molex_47346-0001 | J2 |
| 1 | VIN | TerminalBlock_KF301:TerminalBlock_KF301-2P | J1 |
| 1 | V_SSR_SEL | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J10 |
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Questions
How big is the ReflowESP PCB?
It measures 72 × 72 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ReflowESP use?
64 parts, built around the ESP32-WROVER-E(4MB), MAX31855KASA+T, BSS138 and TC1. 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.
Where can I download the ReflowESP KiCad files?
From the Weissnix4711/ReflowESP repository on GitHub, at the commit this page was made from: the board is Hardware/ReflowESP.kicad_pcb and its schematic Hardware/ReflowESP.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ReflowESP design in my own project?
Its repository states no licence, so its author keeps all rights: ask Weissnix4711 before reusing the design.