# Planta Térmica ESP32 PID ## Description Planta térmica experimental con ESP32, LM35, control PID discreto, calefactor 12V/8Ω y PCB de potencia/sensado. ## Project Details - **Owner:** pcbproyecto - **Created:** 5/16/2026 - **Last Updated:** 5/31/2026 - **Visibility:** Public - **Domain:** Control térmico experimental / automatización educativa - **Operating Voltage:** 12V - **Connectivity:** Serial USB/UART del ESP32; display TM1637 por CLK/DIO - **Human Interface:** Display TM1637 de 4 dígitos para temperatura en tiempo real - **Power Requirements:** Entrada 12V DC; calefactor 8Ω hasta 1.5A/18W; rieles regulados 5V y 3.3V - **Implementation Details:** ESP32 ejecuta PID discreto, lee LM35 por ADC, controla MOSFET IRLZ44N por PWM low-side para resistencia calefactora 12V/8Ω; incluye filtrado RC, protección de entrada y separación potencia/señal. - **Copies:** 1 ## Key Components ### D1 — [1N5825](https://www.flux.ai/adrian95/1n5825~7d5.md) - Role: Catch Diode - Role Details: Schottky 5A/40V para LM2596; debe colocarse cerca de switch/output - Manufacturer Name: Microchip Technology - Part Type: Diode - Datasheet URL: https://ww1.microchip.com/downloads/aemdocuments/documents/HRDS/ProductDocuments/DataSheets/1n5823-25.pdf - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Part Number: 1N5825 **Pins:** - A [pin 2] - K [pin 1] ### D3 — [1N4007_AY_10001](https://www.flux.ai/lcsc/1n4007ay10001~56d.md) - LCSC Part Number: C115999 - Manufacturer Part Number: 1N4007_AY_10001 - Part Type: Diodes - General Purpose - Role Details: Diodo serie en entrada 12V según documento; considerar disipación por corriente del calefactor - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/1811061711_PANJIT-International-1N4007-AY-10001_C115999.pdf - Role: Reverse Polarity Protection - JLCPCB Part Class: Extended Part - Package or Case Code: DO-41_BD2.4-L4.7-P8.70-D0.9-RD - Product Info Url: https://lcsc.com/product-detail/Diodes-General-Purpose_1N4007_C115999.html - Manufacturer Name: PANJIT(强茂) **Pins:** - A [pin 2] - C [pin 1] ### J1 — [KF128-5.08-2P-AA](https://www.flux.ai/lcsc/kf128-5p08-2p-aa~0pbi.md) - Connector Positions: 2 - Connector Pitch: 5.08mm - Connector Type: Screw terminal - Role: Power Input - Package or Case Code: CONN-TH_P5.08_KF128-5.08-2P - Connector Gender: Female - Product Info Url: https://lcsc.com/product-detail/New-Quadratic-Unclassified-Data_Cixi-Kefa-Elec-KF128-5-08-2P_C474952.html - LCSC Part Number: C474952 - Manufacturer Name: KEFA(科发) - Connector Rows: 1 - Manufacturer Part Number: KF128-5.08-2P-AA - Part Type: Screw terminal - Operating Temperature: -40℃~+105℃ - Current Rating: 24A - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2408211511_Cixi-Kefa-Elec-KF128-5-08-2P-AA_C474952.pdf - JLCPCB Part Class: Extended Part - Role Details: Bornera 2 pines para entrada 12V DC; debe soportar corriente de calefactor 1.5A más lógica **Pins:** - 1 [pin 1] - 2 [pin 2] ### J2 — [KF128-5.08-2P-AA](https://www.flux.ai/lcsc/kf128-5p08-2p-aa~0pbi.md) - Part Type: Screw terminal - Operating Temperature: -40℃~+105℃ - Current Rating: 24A - LCSC Part Number: C474952 - Manufacturer Name: KEFA(科发) - Role Details: Bornera 2 pines hacia resistencia calefactora externa 8Ω/18W - Connector Rows: 1 - Manufacturer Part Number: KF128-5.08-2P-AA - JLCPCB Part Class: Extended Part - Datasheet URL: https://storage.googleapis.com/graviton-electric-symbols/document_assets/lcsc/2408211511_Cixi-Kefa-Elec-KF128-5-08-2P-AA_C474952.pdf - Role: Heater Output - Connector Positions: 2 - Connector Pitch: 5.08mm - Connector Type: Screw terminal - Package or Case Code: CONN-TH_P5.08_KF128-5.08-2P - Connector Gender: Female - Product Info Url: https://lcsc.com/product-detail/New-Quadratic-Unclassified-Data_Cixi-Kefa-Elec-KF128-5-08-2P_C474952.html **Pins:** - 1 [pin 1] - 2 [pin 2] ### Q1 — [IRLZ44NPBF](https://www.flux.ai/jecstronic/irlz44npbf~kg9.md) - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Infineon Technologies - Role Details: Conmuta hasta 1.5A del calefactor; Rds(on) especificada a Vgs=4V/5V, compatible con control lógico - Part Type: Transistor - Role: Heater Low-Side Switch - Manufacturer Part Number: IRLZ44NPBF - Datasheet URL: https://www.mouser.com/datasheet/2/196/Infineon_IRLZ44N_DataSheet_v01_01_EN-3363447.pdf **Pins:** - D [pin 2] - G [pin 1] - S [pin 3] ### U1 — [ESP32-DEVKIT-V1](https://www.flux.ai/vasyl/esp32-devkit-v1~zya.md) - Datasheet URL: https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_en.pdf - Manufacturer Part Number: ESP32-DEVKIT-V1 - Part Type: Module - Manufacturer Name: Espressif Systems - Role: MCU / Control Digital - Symbol Style: Parametric - Role Details: ESP32 ejecuta PID discreto; GPIO34 ADC LM35, GPIO25 PWM calefactor, GPIO18/19 TM1637 **Pins:** - 3V3 [pin 1] - D12 [pin 27] - D13 [pin 28] - D14 [pin 26] - D15 [pin 3] - D18 [pin 9] - D19 [pin 10] - D2 [pin 4] - D21 [pin 11] - D22 [pin 14] - D23 [pin 15] - D25 [pin 23] - D26 [pin 24] - D27 [pin 25] - D32 [pin 21] - D33 [pin 22] - D34 [pin 19] - D35 [pin 20] - D4 [pin 5] - D5 [pin 8] - EN [pin 16] - GND [pin 2] - GND__1 [pin 29] - RX0 [pin 12] - RX2 [pin 6] - sensor_VN [pin 18] - sensor_VP [pin 17] - TX0 [pin 13] - TX2 [pin 7] - VIN [pin 30] ### U2 — [LM2596S-ADJ/NOPB](https://www.flux.ai/adrian95/lm2596s-adjnopb~bjl.md) - Datasheet URL: https://www.ti.com/lit/ds/symlink/lm2596.pdf - Role Details: Regula entrada 12V a 5V; salida ajustada con R1=1kΩ/R2=3.09kΩ; corriente lógica estimada <0.5A - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit - Manufacturer Part Number: LM2596S-ADJ/NOPB - Manufacturer Name: Texas Instruments - Role: 5V Buck Regulator **Pins:** - ~ON~/OFF [pin 5] - FB [pin 4] - GND [pin 6] - GND [pin 3] - OUT [pin 2] - VIN [pin 1] ### U3 — [AMS1117-3.3](https://www.flux.ai/vasy_skral/ams1117-33~34.md) - License: https://creativecommons.org/licenses/by/4.0/ - Part Type: Integrated Circuit - Manufacturer Part Number: AMS1117-3.3 - Role: 3.3V LDO - Role Details: Post-regulación 5V a 3.3V para periféricos; requiere capacitor de salida 22uF según datasheet - Datasheet URL: http://www.advanced-monolithic.com/pdf/ds1117.pdf - Manufacturer Name: AMS - Symbol Style: Parametric **Pins:** - GND [pin 1] - TAB(VOUT) [pin 4] - VIN [pin 3] - VOUT [pin 2] ### U4 — [LM35DZ/NOPB](https://www.flux.ai/adrian95/lm35dznopb~igw.md) - Manufacturer Name: Texas Instruments - Role Details: LM35 alimentado a 5V; salida filtrada al ADC GPIO34 del ESP32 - Datasheet URL: https://www.ti.com/lit/ds/symlink/lm35.pdf - Manufacturer Part Number: LM35DZ/NOPB - License: https://creativecommons.org/licenses/by/4.0/ - Role: Temperature Sensor - Part Type: Sensor **Pins:** - +VS [pin 1] - GND [pin 3] - VOUT [pin 2] ### U5 — [TM1637_4-digit 7-segment indicator_Horizontal](https://www.flux.ai/jecstronic/tm16374-digit-7-segment-indicatorhorizontal~913.md) - Role: Temperature Display - Part Type: Module - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: Rajguru eletronics - Role Details: Display TM1637 con líneas CLK/DIO desde ESP32 - Datasheet URL: https://5.imimg.com/data5/MA/OB/MY-1833510/tm1637-based-4-bits-red-digital-tube-led-display-module.pdf - Manufacturer Part Number: TM1637 **Pins:** - CLK [pin 1] - DIO [pin 2] - GND [pin 4] - VCC [pin 3] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/pcbproyecto/planta-termica-esp32-pid~5y](https://www.flux.ai/pcbproyecto/planta-termica-esp32-pid~5y).* --- *Generated from [https://www.flux.ai/pcbproyecto/planta-termica-esp32-pid~5y](https://www.flux.ai/pcbproyecto/planta-termica-esp32-pid~5y)*