2 layers52 × 43 mm
2 layers86.3 × 76.2 mm
Tamago
idiot250/tamagofirst pcb project
- Size
- 86.3 × 76.2 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 18
- Nets
- 39
- Pads
- 135
- Tracks, vias
- 426, 67
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 6 Oct 2026
- Updated
- 21 Oct 2026
Overview
Tamago is an open-source printed circuit board by idiot250, from the idiot250/tamago repository on GitHub. It is a 2-layer board of 86.3 × 76.2 mm with 18 parts on 39 nets, routed with 426 tracks and 67 vias.
It is built around the ESP32-C3-MINI-1, DHT11 and AP2112K-3.3, with the INMP441 among its other parts. Its parts include 4 capacitors, 4 connectors, 3 resistors, 3 ICs and 2 switches. It belongs with the ESP32 and RISC-V boards of this library.
Main components
4ESP32-C3-MINI-1
--40℃~+81℃ -89dBm 2.4GHz 350mA 3V~3.6V 82mA ESP32-C3 Chip On-board PCB Antenna UART - WiFi Modules ROHSRF CrazyWiFi Modules
DHT11
SIP-4-20℃~+60℃ 1mA 3.3V~5.5V 5%RH~95%RH ±2℃ ±5%RH SIP-4 Temperature and Humidity Sensor ROHSAosong ElecTemperature And Humidity Sensor
AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorised
INMP441
SMD-960Hz~15kHz SMD-9 MEMS Microphones ROHSTDK InvenSenseMEMS Microphones
README
README.mdtamago
tamago is a simple desktop companion. I built it because I thought it seemed like a good entry point into pcb design, without being unnecessarily complex.
Functionality includes date/time, timer, stopwatch, countdown, and noise visualizer which responds to the sounds in your working space (e.g. typing/music). It can also display humidity and temperature of your working space. It's a device that is for the most part single-purpose, meaning it doesn't occupy more of your attention than it needs. THis also helps me stay on focus more.
ps. tamago is japanese for egg
bill of materials
| Item | Qty | Supplier | Cost/item | Total Cost | Link |
|---|---|---|---|---|---|
| ESP32-C3-MINI-1 | 1 | Aliexpress | $4.69 | $4.69 | https://www.aliexpress.com/item/3256810385497528.html |
| 0.96" OLED | 1 | Aliexpress | $1.09 | $1.09 | https://www.aliexpress.com/item/3256810476428595.html |
| EC11 KY-040 Rotary Encoder | 1 | Aliexpress | $2.49 | $2.49 | https://www.aliexpress.com/item/3256812187820082.html |
| DHT11 | 1 | Aliexpress | $2.01 | $2.01 | https://www.aliexpress.com/item/3256808804649487.html |
| INMP441 | 1 | Aliexpress | $2.95 | $2.95 | https://www.aliexpress.com/item/3256809519855925.html |
| Passive Components | 1 | Aliexpress | $12.27 | $12.27 | https://www.aliexpress.us/item/3256803146822180.html |
| PCB | 1 | JLCPCB | $4.00 | $4.00 | https://jlcpcb.com |
| Estimated total shipping | 1 | $0.00 |
Parts
18| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 10uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C2 |
| 2 | 5.1k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R3 |
| 2 | SW_Push | Button_Switch_THT:SW_PUSH_6mm | SW1, SW2 |
| 1 | 100nF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3 |
| 1 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R4 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C4 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U1 |
| 1 | DHT11 | Sensor:Aosong_DHT11_5.5x12.0_P2.54mm | U3 |
| 1 | ESP32-C3-MINI-1 | PCM_Espressif:ESP32-C3-MINI-1 | U2 |
| 1 | INMP441 | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | J4 |
| 1 | LOGO | pcbart-footprints:hclogo | G*** |
| 1 | LOGO | pcbart-footprints:hllogo | G*** |
| 1 | OLED | Display:Adafruit_SSD1306_No_Mounting_Holes | J2 |
| 1 | Rotary Encoder | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm | J3 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
Questions
How big is the Tamago PCB?
It measures 86.3 × 76.2 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Tamago use?
18 parts, built around the ESP32-C3-MINI-1, DHT11, AP2112K-3.3 and INMP441. 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 Tamago KiCad files?
From the idiot250/tamago repository on GitHub, at the commit this page was made from: the board is pcb/tamago.kicad_pcb and its schematic pcb/tamago.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Tamago design in my own project?
Its repository states no licence, so its author keeps all rights: ask idiot250 before reusing the design.
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