Smart plug
thingler·smart-plug
About the Smart plug PCB
Smart plug is an open source RP2040/RP2350 PCB design by thingler, published on GitHub under the GPL-3.0 license. It is a 2-layer board measuring 45 × 45 mm, with 25 components from 19 distinct parts.
Its main chip is the THINGLER-ESP32-PICO, from the RP2040/RP2350 family. Other key parts include the SR086, FODM3012 and TPS560430X3F. By type, the board carries 8 resistors, 7 capacitors, 4 ICs, 2 transistors, 1 connector and 1 fuse.
It belongs with the iot & wireless designs in this gallery.
From the project
3D printed Smart Plug
Thingler Smart Plug is a 3D printed smart plug based on the popular ESP32 micro controller. This device is using the Thingler ESP32-PICO Module.
Software has been written to either connect to the AWS IOT service or it can use the Matter connectrivity standard.
KiCad for the schematics Thingler ESP32-PICO Module Either Thingler Smart Plug Matter or Thinger Smart Plug ESP32 (AWS IoT) for the ESP32 module 3D design

Main components on the Smart plug
Smart plug bill of materials (BOM)
25 components, 19 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | THINGLER-ESP32-PICO | Thingler-esp32-vertical | U1 |
| 1 | SR086 | SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.29x3mm | U2 |
| 1 | FODM3012 | FODM3012 | U3 |
| 1 | TPS560430X3F | SOT-23-6 | U4 |
| 1 | STGD5NB120SZ | TO-252-2 | Q1 |
| 1 | BTA316B-600E | to-263-2 | Q2 |
| 1 | Screw_Terminal_01x04 | 3d_power_connector | J1 |
| 1 | Fuse 1A | fuse-2410 | F1 |
| 1 | ABS10A | ABS10A | D1 |
| 1 | ME3220 12u | ME3220 | L1 |
| 5 | 100n | C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C1, C2, C3, C5, C6 |
| 1 | 470u | CP_EIA-7343-15_Kemet-W | C4 |
| 1 | 33u | C_1206_3216Metric_Pad1.42x1.75mm_HandSolder | C7 |
| 2 | 200k | R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | R1, R2 |
| 2 | 510k | R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | R3, R4 |
| 1 | 210 | R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | R5 |
| 1 | 113k | R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | R6 |
| 1 | 12.4k | R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | R7 |
| 1 | 180 | R_1206_3216Metric_Pad1.42x1.75mm_HandSolder | R8 |
Smart plug design files
The KiCad project lives in the thingler/smart-plug repository on GitHub; these links point at the commit this page was built from.
- Layoutsmart-plug.kicad_pcb
- Schematicsmart-plug.kicad_sch
Smart plug: common questions
What microcontroller does the Smart plug use?
The Smart plug is built around the THINGLER-ESP32-PICO, from the RP2040/RP2350 family.
How big is the Smart plug PCB?
The Smart plug measures 45 × 45 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Smart plug?
25 components, from 19 distinct parts. The full bill of materials is listed on this page.
Where can I download the Smart plug design files?
From the thingler/smart-plug repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Smart plug design in my own project?
Yes, under the terms of its GPL-3.0 license, which thingler chose for the repository.
Can I test firmware for the Smart plug without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.
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