Esp32s2-usb uart
TDA-2030·esp32s2-usb-uart
About the Esp32s2-usb uart PCB
Esp32s2-usb uart is an open source ESP32 PCB design by TDA-2030, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 30 × 14 mm, with 44 components from 23 distinct parts.
Its main chip is the ESP32-S2FH4, from the ESP32 family. Other key parts include the AMS1117-3.3 and USBLC6-2SC6. By type, the board carries 16 capacitors, 11 resistors, 7 diodes, 3 ICs, 3 connectors and 1 crystal.
It belongs with the usb & debug tools and iot & wireless designs in this gallery.
From the project
USB to UART by ESP32-S2
- [x] USB to UART - [x] PCB size: 30mm x 14mm - [x] All output with ESD protection - [x] 3 LEDs - [x] LEDs to indicate UART signal - [x] 3.3V output - [x] Either USBA or Type-C plug - [ ] Auto download for ESP series chips - [ ] Wireless connecting

Main components on the Esp32s2-usb uart
Esp32s2-usb uart bill of materials (BOM)
44 components, 23 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AMS1117-3.3 | SOT-223-3_TabPin2 | U1 |
| 1 | USBLC6-2SC6 | SOT-23-6 | U2 |
| 1 | ESP32-S2FH4 | QFN-56-1EP_7x7mm_P0.4mm_EP5.6x5.6mm | U3 |
| 1 | CRYSTAL_GND24_SMALL Crystal_GND24_Small | Crystal_SMD_EuroQuartz_MT-4Pin_3.2x2.5mm | Y1 |
| 1 | USB_A | USB_A_CNCTech_1001-011-01101_Horizontal | J1 |
| 1 | USB_C_RECEPTACLE_USB2.0 USB_C_Receptacle_USB2.0 | USB_C_Receptacle | J2 |
| 1 | CONN_02X05_COUNTER_CLOCKWISE Conn_02x05_Counter_Clockwise | Header_2x5_pin | J3 |
| 1 | Antenna_Chip | Johanson_2450AT43F0100 | AE1 |
| 1 | SW_Push | button | SW1 |
| 1 | RED | LED_0603_1608Metric | D1 |
| 1 | GREEN | LED_0603_1608Metric | D2 |
| 1 | BLUE | LED_0603_1608Metric | D3 |
| 2 | PESD5V0L5UY | SOT-363_SC-70-6 | D4, D5 |
| 2 | LED_YELLOW | LED_0603_1608Metric | D10, D11 |
| 1 | L | L_0402_1005Metric | L1 |
| 3 | 10UF 10uf | C_0603_1608Metric | C1, C2, C3 |
| 9 | 0.1UF 0.1uf | C_0402_1005Metric | C4, C5, C6, C7, C9, C11, C12, C13 +1 |
| 2 | 10PF 10pf | C_0402_1005Metric | C8, C10 |
| 2 | TBD | C_0402_1005Metric | C15, C16 |
| 2 | 22 | R_0402_1005Metric | R1, R2 |
Show 3 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 5 | 1k | R_0402_1005Metric | R3, R4, R5, R8, R9 |
| 2 | 10K 10k | R_0402_1005Metric | R6, R7 |
| 2 | 5.1K 5.1k | R_0402_1005Metric | R10, R11 |
Esp32s2-usb uart design files
The KiCad project lives in the TDA-2030/esp32s2-usb-uart repository on GitHub; these links point at the commit this page was built from.
Esp32s2-usb uart: common questions
What microcontroller does the Esp32s2-usb uart use?
The Esp32s2-usb uart is built around the ESP32-S2FH4, from the ESP32 family.
How big is the Esp32s2-usb uart PCB?
The Esp32s2-usb uart measures 30 × 14 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Esp32s2-usb uart?
44 components, from 23 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 Esp32s2-usb uart design files?
From the TDA-2030/esp32s2-usb-uart repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Esp32s2-usb uart design in my own project?
Yes, under the terms of its Apache-2.0 license, which TDA-2030 chose for the repository.
Can I test firmware for the Esp32s2-usb uart 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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