Connected IoT devices and wireless sensor nodes
On-board radio: Wi-Fi 802.11 b/g/n (2.4 GHz); Bluetooth LE 5.0.
Engineering inference
Seeed Studio
Seeed Studio XIAO ESP32C3
Thumb-sized ESP32-C3 (RISC-V 160 MHz, Wi-Fi 4 + BLE 5) board: 400 KB SRAM, 4 MB flash, 11 GPIO (4 ADC) at 3.3 V, USB-C, Li-ion charging, TLV75733 3.3 V LDO, castellated 21 × 17.8 mm.
113991054Revision v1.3Development boardPrice$4.90Seeed Studio · in stock
Buy at Seeed Studio Board essentials
Facts about the complete product. Unknown values remain open design questions.
- Exposed GPIO
- 11
- Board I/O voltage
- 3.3 V
- Board flash capacity
- 4 MiB
- Board SRAM capacity
- 400 KiB
- Board operating range
- -40 to 85 °C
A good fit for
Guidance to help you shortlist. The basis is shown for each recommendation.
Space-constrained and embedded builds
20.955 × 17.78 mm footprint.
Engineering inferenceLearning and fast prototyping
Programs from Arduino, MicroPython.
Engineering inferenceInside this board
The board is the parent product. Each chip has its own memory, pins, capabilities and thermal limits.
main processor
ESP32-C3FH4
Espressif Systems
99bec0e0-dcb0-5a46-81e1-f86f342553dd--mcu- Architecture
- 32-bit RISC-V single-core
- Documented clock
- 160 MHz
- On-chip SRAM
- 400 KiB
voltage regulator
TLV75733PDBVR
Texas Instruments
99bec0e0-dcb0-5a46-81e1-f86f342553dd--ldoFAQ
Seeed Studio XIAO ESP32C3 questions
What microcontroller does the Seeed Studio XIAO ESP32C3 use?
The Seeed Studio XIAO ESP32C3 is built around the ESP32-C3FH4, alongside TLV75733PDBVR.
How many GPIO pins does the Seeed Studio XIAO ESP32C3 have?
11 GPIO pins are exposed. Xirkit documents 22 board pins, 16 of them with pin-level electrical limits.
Are the Seeed Studio XIAO ESP32C3 I/O pins 5 V tolerant?
No. The I/O pins are not 5 V tolerant — they run at 3.3 V logic; use a level shifter for 5 V signals. Input-high threshold: 2.475–3.6 V.
How much current can a Seeed Studio XIAO ESP32C3 GPIO pin source?
Documented output-high current per pin: 40 mA typ. Values are traced to the chip datasheet; see the pinout table for per-pin limits and conditions.
What voltage powers the Seeed Studio XIAO ESP32C3?
Supply range 3.7–5 V. Power inputs: 5V, BAT+.
How much does the Seeed Studio XIAO ESP32C3 cost?
From $4.9 at Seeed Studio. Prices are observed unit prices before tax and shipping.
What are the Seeed Studio XIAO ESP32C3 dimensions?
20.955 × 17.78 × 1.6 mm. A STEP model is available for enclosure fit checks.
Which interfaces does the Seeed Studio XIAO ESP32C3 support?
adc, gpio, spi, gpio_matrix, jtag, i2c, uart, control, usb.
How do I program the Seeed Studio XIAO ESP32C3?
Supported frameworks: Arduino (esp32 core), MicroPython.
Where does this Seeed Studio XIAO ESP32C3 data come from?
Every value in this record is traced to a source — 2 documents including the board and chip datasheets — with the page and table cited per value. Unknowns are left explicit, never guessed.
Data & sources
Where these values come from
- Seeed Studio XIAO ESP32C3 datasheet — Seeed Studio
- Seeed Studio listing