Connected IoT devices and wireless sensor nodes
On-board radio: Wi-Fi 802.11b/g/n 2.4 GHz; Bluetooth 4.2 BR/EDR + LE.
Engineering inference
Espressif Systems
ESP32-DevKitC V4
Classic Espressif ESP32 board: ESP32-WROOM-32E (ESP32-D0WD-V3 dual-core LX6 240 MHz, 520 KB SRAM, 4 MB flash, Wi-Fi 4 + Bluetooth 4.2 BR/EDR/LE, PCB antenna), CP2102N USB-UART (3 Mbps), AMS1117-3.3 LDO, EN/Boot buttons, 2×19 0.1" headers, 48.26×27.94 mm; MCPWM, LEDC, PCNT for motor/encoder work.
ESP32-DevKitC V4 (ESP32-WROOM-32E)Development boardPrice$15.00Adafruit · out of stock
Buy at Adafruit Board essentials
Facts about the complete product. Unknown values remain open design questions.
- Exposed GPIO
- 32
- Board I/O voltage
- 3.3 V
- Board flash capacity
- 4 MiB
- Board SRAM capacity
- 520 KiB
- Board operating range
- -40 to 85 °C
A good fit for
Guidance to help you shortlist. The basis is shown for each recommendation.
Wired networking and industrial control
Ethernet interface for deterministic, wired links.
Engineering inferenceLearning and fast prototyping
Programs from ESP-IDF, Arduino-ESP32, MicroPython.
Engineering inferenceInside this board
The board is the parent product. Each chip has its own memory, pins, capabilities and thermal limits.
wireless module
ESP32-WROOM-32E
Espressif Systems
01c35d45-fe4c-58c0-b58f-1076e04eacd6--modulemain processor
ESP32-D0WD-V
Espressif Systems
01c35d45-fe4c-58c0-b58f-1076e04eacd6--mcu- Architecture
- Xtensa 32-bit LX6 (single/dual core)
- Documented clock
- 240 MHz
- On-chip SRAM
- 520 KiB
usb uart bridge
CP2102N-A02-GQFN28
Silicon Labs
01c35d45-fe4c-58c0-b58f-1076e04eacd6--u2ldo regulator
AMS1117-3.3
Advanced Monolithic Systems
01c35d45-fe4c-58c0-b58f-1076e04eacd6--u3schottky diode
BAT760-7
Diodes Inc.
01c35d45-fe4c-58c0-b58f-1076e04eacd6--d3auto reset transistor
SS8050-G
unspecified
01c35d45-fe4c-58c0-b58f-1076e04eacd6--q1FAQ
ESP32-DevKitC V4 questions
What microcontroller does the ESP32-DevKitC V4 use?
The ESP32-DevKitC V4 is built around the ESP32-D0WD-V, alongside ESP32-WROOM-32E, CP2102N-A02-GQFN28, AMS1117-3.3, BAT760-7.
How many GPIO pins does the ESP32-DevKitC V4 have?
32 GPIO pins are exposed. Xirkit documents 38 board pins, 33 of them with pin-level electrical limits.
Are the ESP32-DevKitC V4 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 ESP32-DevKitC V4 GPIO pin source?
Documented output-high current per pin: input-only pin (GPIO34–39 have no output driver). Values are traced to the chip datasheet; see the pinout table for per-pin limits and conditions.
What voltage powers the ESP32-DevKitC V4?
Supply range 5–5 V. Power inputs: 5V.
How much does the ESP32-DevKitC V4 cost?
From $15 at Adafruit. Prices are observed unit prices before tax and shipping.
What are the ESP32-DevKitC V4 dimensions?
27.94 × 48.26 mm. A STEP model is available for enclosure fit checks.
Which interfaces does the ESP32-DevKitC V4 support?
gpio, adc, analog, rtc_gpio, touch, clock, pwm, gpio_matrix, dac, ethernet, jtag, spi, sdio, flash_spi, uart, control, usb.
How do I program the ESP32-DevKitC V4?
Supported frameworks: ESP-IDF, Arduino-ESP32, MicroPython.
Where does this ESP32-DevKitC V4 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
- ESP32-DevKitC V4 datasheet — Espressif Systems
- Adafruit listing