2 layers79 × 30 mm
LIA
JGAguado/LIA
Low-power pet tracking platform built around Meshtastic and LoRa mesh networking
81 parts29
2 layers41 × 56 mm
Esp32 s3 pico 1
wafleee/Drawing_TabletI am making a bluetooth drawing tablet that can send images you make on it to your computer. The main audience is people who love digital drawing but cant afford proper hardware like a Ipad and apple pencil or Large drawing pad.
- Size
- 41 × 56 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 31
- Nets
- 57
- Pads
- 197
- Tracks, vias
- 611, 74
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 12 Sep 2026
- Updated
- 18 Sep 2026
Overview
Esp32 s3 pico 1 is an open-source printed circuit board by wafleee, from the wafleee/Drawing_Tablet repository on GitHub. It is a 2-layer board of 41 × 56 mm with 31 parts on 57 nets, routed with 611 tracks and 74 vias.
It is built around the ESP32-S3-MINI-1-N8, MCP73871EV and TPD2EUSB30DRT. Its parts include 10 resistors, 6 capacitors, 4 ICs, 3 diodes and 3 connectors. It belongs with the radio and wireless boards and the ESP32 and RP2040 boards of this library.
Main components
3
ESP32-S3-MINI-1-N8
SMD-104.5dBm -40℃~+85℃ 2.4GHz 20.5dBm 330mA 3V~3.6V 97mA Bluetooth5.0 ESP32-S3FN8 Chip On-board PCB Antenna UART、SPI、I2C、I2S、USB SMD WiFi Modules ROHSEspressif SystemsWiFi ModulesMCP73871EV
-ModulesMicrochip Technology
TPD2EUSB30DRT
SOT(9x3)-40℃~+85℃ 0.7pF 2 45W 5.5V 5A@8/20us 7V 8V ESD IEC 61000-4-2、IEC 61000-4-5 Unidirectional SOT(9x3) ESD and Surge Protection (TVS/ESD) ROHSTexas InstrumentsESD And Surge Protection (TVS/ESD)
README
README.mdDrawing Tablet
I am making a bluetooth drawing tablet that can send images you make on it to your computer. The main audience is people who love digital drawing but cant afford proper hardware like a Ipad and apple pencil or Large drawing pad.
$\huge\text{Features}$
- High quality image export (via BLE or Wifi)
- Multicolor drawing
- Save pictures to ESP32 memory
- Long battery life (3-4 hour, with continuous usage )
- Built in Stylus storage
- Large Screen (2.8 inches)
$\huge\text{Schematic}$
$\huge\text{PCB Design }$
$\huge\text{BOM }$
$\large\text{Price in INR }$
| Ref. | Qty | Part / Value | LCSC # | Price / pc |
|---|---|---|---|---|
| BT2 | 1 | JST-PH 2-pin | C265016 | ₹6.41 |
| C1, C4 | 2 | 4.7 µF | C915849 | ₹56.46 |
| C5 | 1 | 10 µF | C111896 | ₹78.10 |
| C6 | 1 | 0.1 µF | C106148 | ₹11.42 |
| C7, C8 | 2 | 1 µF | C91185 | ₹3.55 |
| D1, D2, D3 | 3 | Indicator LED | C125084 | ₹3.95 |
| IC1 | 1 | NCP186 3.3 V LDO | C719823 | ₹32.75 |
| J1 | 1 | 1×14 female socket | C2905420 | ₹14.69 |
| J2 | 1 | 1×5 male header | C55629812 | ₹3.69 |
| J3 | 1 | USB-C USB 2.0 receptacle | C3025063 | ₹98.75 |
| R1, R2, R6 | 3 | 470 Ω | C114564 | ₹0.51 |
| R3, R4 | 2 | 10 kΩ | C84376 | ₹0.63 |
| R5, R10 | 2 | 5.1 kΩ | C728389 | ₹2.14 |
| R7 | 1 | 1.5 kΩ | C309587 | ₹1.52 |
| R8, R9 | 2 | 10 kΩ | C84376 | ₹0.63 |
| SW3, SW4 | 2 | Push button | C318884 | ₹1.98 |
| U1 | 1 | ESP32-S3-MINI-1-N4 | C2847294 | ₹ 369 |
| U4 | 1 | USB ESD protection | C94934 | ₹51.26 |
| U5 | 1 | MCP73871 | C144351 | ₹456.94 |
$\huge\text{Firmware}$
You do not have to add any external software. Just upload the code to the board using a cable and the Arduino ide software will handle everything else.
$\huge\text{CREDITS }$
FUSION 360 - https://www.autodesk.com/in/products/fusion-360/overview
KICAD - https://www.kicad.org/
Arduino IDE - https://www.arduino.cc/en/software/
$\large\text{FIRMWARE CREDITS }$
SPI.h
TFT_eSPI.h By Bodmer
Bluetoothserial.h
Parts
31| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | 470 | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R6 |
| 3 | LED | LED_SMD:LED_1210_3225Metric | D1, D2, D3 |
| 2 | 1 uF | Capacitor_SMD:C_0805_2012Metric | C7, C8 |
| 2 | 10K | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R3, R4 |
| 2 | 10k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R8, R9 |
| 2 | 4.7 uF | Capacitor_SMD:C_1812_4532Metric_Pad1.57x3.40mm_HandSolder | C1, C4 |
| 2 | 5.1k | Resistor_SMD:R_1210_3225Metric | R5, R10 |
| 2 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2 |
| 2 | SW_Push | Button_Switch_SMD:SW_SPST_CK_RS282G05A3 | SW3, SW4 |
| 1 | 0.1uF | Capacitor_SMD:C_1812_4532Metric_Pad1.57x3.40mm_HandSolder | C6 |
| 1 | 1.5k | Resistor_SMD:R_1210_3225Metric | R7 |
| 1 | 10 uF | Capacitor_SMD:C_1812_4532Metric_Pad1.57x3.40mm_HandSolder | C5 |
| 1 | 3.7 | Connector_JST:JST_PH_S2B-PH-K_1x02_P2.00mm_Horizontal | BT2 |
| 1 | Conn_01x05_Pin | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J2 |
| 1 | Conn_01x14_Socket | Connector_PinSocket_2.54mm:PinSocket_1x14_P2.54mm_Vertical | J1 |
| 1 | ESP32-S3-MINI-1 | RF_Module:ESP32-S2-MINI-1 | U1 |
| 1 | MCP73871 | Package_DFN_QFN:QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm | U5 |
| 1 | NCP186AMX330TAG | NCP186:NCP186AMX330TAG | IC1 |
| 1 | TPD2EUSB30 | Package_TO_SOT_SMD:Texas_DRT-3 | U4 |
| 1 | USB_C_Receptacle_USB2.0_14P | Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal | J3 |
Questions
How big is the Esp32 s3 pico 1 PCB?
It measures 41 × 56 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Esp32 s3 pico 1 use?
31 parts, built around the ESP32-S3-MINI-1-N8, MCP73871EV and TPD2EUSB30DRT. 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 Esp32 s3 pico 1 KiCad files?
From the wafleee/Drawing_Tablet repository on GitHub, at the commit this page was made from: the board is PCB/Esp32 s3 pico 1.kicad_pcb and its schematic PCB/Esp32 s3 pico 1.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Esp32 s3 pico 1 design in my own project?
Its repository states no licence, so its author keeps all rights: ask wafleee before reusing the design.
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