ESP32-IoT-Monitoring-Control-Board
About the ESP32-IoT-Monitoring-Control-Board
ESP32-IoT-Monitoring-Control-Board is an open source ESP32 PCB design by Habib-creater, published on GitHub under the CERN-OHL-S-2.0 license. It is a 4-layer board measuring 92 × 88 mm, with 58 components from 32 distinct parts.
Its main chip is the ESP32-WROOM-32D-N4, from the ESP32 family. Other key parts include the USBLC6-2P6, CP2104-F03-GMR, SI7021-A20-IMR, CD74HC245E and TPTLV1117LV33DCYR. By type, the board carries 20 resistors, 15 capacitors, 6 ICs, 6 connectors, 4 diodes and 2 transistors.
It belongs with the iot & wireless and sensors designs in this gallery.
From the project
4-layer ESP32-based IoT monitoring and control board with environmental sensing, relay control, USB-C, and Qwiic expansion.
The 4-Layer ESP32 IoT Monitoring and Control Board is a custom embedded hardware platform built around the ESP32-WROOM-32D module.
The board combines environmental sensing through the Si7021-A20, serial and wired interfaces, relay control, USB connectivity, Qwiic expansion, and general-purpose GPIO in a compact 4-layer PCB design.
The complete hardware package is included in this repository, covering the native KiCad project, electrical schematic, PCB layout, BOM, Gerber and drill manufacturing files, pick-and-place data, and PCB documentation.
Main components on the ESP32-IoT-Monitoring-Control-Board
ESP32-IoT-Monitoring-Control-Board bill of materials (BOM)
58 components, 32 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP32-WROOM-32D-N4 ESP32-WROOM-32D ESPRESSIF | ESP32-WROOM-32D | U1 |
| 1 | USBLC6-2P6 STMicroelectronics | SOT-666 | U2 |
| 1 | CP2104-F03-GMR CP2104 Silicon Labs | QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm | U3 |
| 1 | SI7021-A20-IMR Si7021-A20 Silicon Labs | DFN-6-1EP_3x3mm_P1mm_EP1.5x2.4mm | U4 |
| 1 | CD74HC245E 74HC245 Texas Instruments | DIP-20_W7.62mm | U5 |
| 1 | TPTLV1117LV33DCYR TLV1117LV-3.3 TECH PUBLIC | SOT-223-3_TabPin2 | U6 |
| 1 | UMH3NFHATN UMH3N Rohm Semiconductor | SOT-363_SC-70-6 | Q1 |
| 1 | BC817-40-TP BC817 MCC (Micro Commercial Components) | SOT-23 | Q2 |
| 1 | TYPE-C-31-M-12 USB_C_Receptacle_USB2.0_16P Korean Hroparts Elec | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
| 1 | 14417 Conn_01x04 SparkFun Electronics | SPARKFUN_PRT-14417 | J2 |
| 1 | 1729131 Screw_Terminal_01x03 Phoenix Contact | TerminalBlock_Phoenix_MKDS-3-3-5.08_1x03_P5.08mm_Horizontal | J3 |
| 1 | 1711084 Screw_Terminal_01x08 Phoenix Contact | TerminalBlock_Phoenix_MKDS-1,5-8_1x08_P5.00mm_Horizontal | J4 |
| 1 | 1715022 Screw_Terminal_01x02 Phoenix Contact | TerminalBlock_Phoenix_MKDS-1,5-2_1x02_P5.00mm_Horizontal | J5 |
| 1 | Conn_02x04_Odd_Even | PinHeader_2x04_P2.54mm_Vertical | J7 |
| 1 | 6.96E+11 Fuse W�rth Elektronik | 696105003002 | F1 |
| 1 | 1206L110THYR Polyfuse1A Littelfuse Inc. | Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder | F2 |
| 1 | RT314A05 TE Connectivity Potter & Brumfield Relays | Relay_SPDT_Schrack-RT1-16A-FormC_RM5mm | K1 |
| 1 | 108-KMR211GLFS SW_SPST C&K | SW_Push_1P1T_NO_CK_KSC6xxJ | SW1 |
| 1 | LL4148 Lumimax Optoelectronic Technology | D_MiniMELF | D1 |
| 1 | TLMY1100-GS15 YELLOW Vishay Semiconductor Opto Division | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D2 |
Show 12 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 150141M173100 LED_RGBA W�rth Elektronik | LED_RGB_Wuerth-PLCC4_3.2x2.8mm_150141M173100 | D3 |
| 1 | VLMS1300-GS08 LED Vishay Semiconductor Opto Division | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D4 |
| 1 | BLM21PG221SN1D BLM21PG221 Murata Electronics | L_0805_2012Metric | FB1 |
| 1 | A750MV108M1EAAE014 1000uF/25V KEMET | CP_Radial_D10.0mm_P5.00mm | C1 |
| 7 | CL05B104KP5VPNC 100n Samsung Electro-Mechanics | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C2, C6, C10, C12, C13, C14, C16 |
| 1 | CL21A475KOFNNNE 4.7u Samsung Electro-Mechanics | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3 |
| 6 | CL21A226KOQNNNE 22u Samsung Electro-Mechanics | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4, C5, C8, C9, C11, C15 |
| 2 | RC0402FR-075K1L 5k1 YAGEO | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R1, R2 |
| 4 | RC0402FR-0710KL 10K YAGEO | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R3, R7, R13, R20 |
| 6 | RC0402FR-0722RL 22R YAGEO | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R4, R5, R16, R17, R18, R19 |
| 6 | RC0402FR-071KL 1K YAGEO | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R6, R8, R9, R10, R14, R15 |
| 2 | RC0402FR-074K7L 4K7 YAGEO | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R11, R12 |
ESP32-IoT-Monitoring-Control-Board design files
The KiCad project lives in the Habib-creater/ESP32-IoT-Monitoring-Control-Board repository on GitHub; these links point at the commit this page was built from.
- Layouthardware/kicad/IOT.kicad_pcb
- Schematichardware/kicad/IOT.kicad_sch
- BOMbom/IOT_BOM.csv
ESP32-IoT-Monitoring-Control-Board: common questions
What microcontroller does the ESP32-IoT-Monitoring-Control-Board use?
The ESP32-IoT-Monitoring-Control-Board is built around the ESP32-WROOM-32D-N4, from the ESP32 family.
How big is the ESP32-IoT-Monitoring-Control-Board?
The ESP32-IoT-Monitoring-Control-Board measures 92 × 88 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the ESP32-IoT-Monitoring-Control-Board?
58 components, from 32 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the ESP32-IoT-Monitoring-Control-Board design files?
From the Habib-creater/ESP32-IoT-Monitoring-Control-Board repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the ESP32-IoT-Monitoring-Control-Board design in my own project?
Yes, under the terms of its CERN-OHL-S-2.0 license, which Habib-creater chose for the repository.
Can I test firmware for the ESP32-IoT-Monitoring-Control-Board without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.
Similar boards
ESP32Open Book Abridged Edition
joeycastillo
85 × 115 mm65 parts2LCC-BY-SA-4.08.1k
ESP32Badge
atopile
56.3 × 39 mm239 parts4LMIT4.0k
ESP32Esp32 minimal
36.2 × 26.8 mm20 parts2LMIT4.0k
ESP32Racer
StuckAtPrototype
36 × 50.2 mm70 parts4LApache-2.03.8k
ESP32Controller
29 × 74 mm58 parts4LApache-2.03.8k
ESP32Bitaxe
skot
56.5 × 99.8 mm86 parts4LCERN-OHL-S-2.01.4k