Iot thing 11
About the Iot thing 11 PCB
Iot thing 11 is an open source ESP32 PCB design by mortens-lab, published on GitHub under the MIT license. It is a 4-layer board measuring 80 × 80 mm, with 58 components from 41 distinct parts.
Its main chip is the ESP32-WROOM-32D, from the ESP32 family. Other key parts include the USBLC6-2P6, SI7021-A20, CP2104, TLV1117LV-33 and 74AHCT245. By type, the board carries 20 resistors, 15 capacitors, 6 ICs, 6 connectors, 4 diodes and 2 transistors.
It belongs with the iot & wireless designs in this gallery.
From the project
Universal iot device based on an ESP32 WROOM module
Link to YouTube video : (https://youtu.be/b-7bMl6fJio)
Main components on the Iot thing 11
Iot thing 11 bill of materials (BOM)
58 components, 41 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ESP32-WROOM-32D TLV1117LV-3.3 | SOT-223-3_TabPin2 | U1 |
| 1 | USBLC6-2P6 | SOT-666 | U2 |
| 1 | SI7021-A20 CP2104 | QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm | U3 |
| 1 | CP2104 ESP32-WROOM-32D | ESP32-WROOM-32D | U4 |
| 1 | TLV1117LV-33 74AHCT245 | DIP-20_W7.62mm | U5 |
| 1 | 74AHCT245 Si7021-A20 | DFN-6-1EP_3x3mm_P1mm_EP1.5x2.4mm | U6 |
| 1 | UMH3N | SOT-363_SC-70-6 | Q1 |
| 1 | UMH3N BC817 | SOT-23 | Q2 |
| 1 | CONN_01X04 USB_C_Receptacle_USB2.0 | USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
| 1 | USB_C_RECEPTACLE_USB2.0 Conn_02x05_Odd_Even | PinHeader_2x05_P2.54mm_Vertical | J2 |
| 1 | SCREW_TERMINAL_01X03 Screw_Terminal_01x03 | TerminalBlock_Phoenix_MKDS-3-3-5.08_1x03_P5.08mm_Horizontal | J3 |
| 1 | SCREW_TERMINAL_01X02 Screw_Terminal_01x02 | TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | J4 |
| 1 | SCREW_TERMINAL_01X08 Screw_Terminal_01x08 | TerminalBlock_Phoenix_MKDS-1,5-8_1x08_P5.00mm_Horizontal | J5 |
| 1 | CONN_02X05_ODD_EVEN Conn_01x04 | JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J6 |
| 1 | F3371 Polyfuse 1A | Fuse_1206_3216Metric_Pad1.42x1.75mm_HandSolder | F1 |
| 1 | Fuse | FUSE_696105003002 | F2 |
| 1 | RT314A05 | Relay_SPDT_Schrack-RT1-16A-FormC_RM5mm | K1 |
| 1 | 679-2380-1 SW_SPST | SW_Push_1P1T_NO_6x6mm_H9.5mm | SW1 |
| 1 | 732-4998-1 LED_RGBA | LED_RGB_Wuerth-PLCC4_3.2x2.8mm_150141M173100 | D1 |
| 1 | LL4148 GREEN | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D2 |
Show 21 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 732-4981-1 YELLOW | LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D3 |
| 1 | 732-4980-1 LL4148 | D_MiniMELF | D4 |
| 1 | BLM21PG221 | L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | FB1 |
| 5 | 100N 22u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C3, C9, C10, C14 |
| 4 | 22U 100n | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C2, C8, C11, C12 |
| 1 | 22U 22u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4 |
| 1 | 4U7 100n | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C5 |
| 1 | 22U 4u7 | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C6 |
| 1 | 100N 100n | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C13 |
| 1 | 1000U/25V 100n | C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C15 |
| 1 | 4U7 1000u/25V | CP_Radial_D10.0mm_P5.00mm | C16 |
| 1 | 10K | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R1 |
| 2 | 5K1 | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R2, R3 |
| 2 | 4K7 1K | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R4, R5 |
| 3 | 10K 1K | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R6, R12, R14 |
| 1 | 22R 1K | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R7 |
| 1 | 22R 10K | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R8 |
| 2 | 10K | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R9, R16 |
| 2 | 22R | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R10, R11 |
| 2 | 4K7 | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R13, R15 |
| 4 | 47R 22R | R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R17, R18, R19, R20 |
Iot thing 11 design files
The KiCad project lives in the mortens-lab/iot-thing repository on GitHub; these links point at the commit this page was built from.
Iot thing 11: common questions
What microcontroller does the Iot thing 11 use?
The Iot thing 11 is built around the ESP32-WROOM-32D, from the ESP32 family.
How big is the Iot thing 11 PCB?
The Iot thing 11 measures 80 × 80 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Iot thing 11?
58 components, from 41 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 Iot thing 11 design files?
From the mortens-lab/iot-thing 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 Iot thing 11 design in my own project?
Yes, under the terms of its MIT license, which mortens-lab chose for the repository.
Can I test firmware for the Iot thing 11 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.
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