ESP32-DevKitM-1

Board
by Espressifesp32-devkitm-1≈ cheap (under ~$15)
Verify my boardCompareEdit on GitHub
ESP32-DevKitM-1 board
Board
ESP32-DevKitM-1 pinout
Pinout

Specifications

Radiosinherited from ESP32

Wi-Fi
Wi-Fi 4 · 2.4 GHz
Bluetooth LE
BLE 4.2
Bluetooth Classic
yes
802.15.4
no

USB

Native USB
no
Connector
micro-usb

Board

Form factor
devkit
Built onESP32-DevKitM-1 BoardESP32 SoC

Compact ESP32-MINI-1 SiP board with a single micro-USB UART-bridge port.

Firmware for this board

No firmware recipes yet — help add one.

Notes

  • Single micro-USB (power/flash/comms via on-board USB-to-UART bridge); classic ESP32 has no native USB
  • Bridge chip model not named in the official user guide (omitted)
  • Carries ESP32-MINI-1 or -1U SiP module, 4 MB flash integrated in the chip package; no PSRAM
  • Boards manufactured before 2021-12-02 may carry a single-core module variant
  • Dimensions not provided in the user guide (omitted)
  • io.gpio_free=17 DERIVED, not quoted (SPEC-io-power.md §5.3). The user guide's Pin Description table breaks out 28 pads total (quoted: GPIO 0-5,9-10,12-15,18-19,21-23,25-27,32-39). Subtracting esp32's soc.reserved_pins that are exposed -- strapping {0,2,5,12,15} (5), input_only {34,35,36,39} (4), and usb_flash_tied {9,10} exposed out of {6,7,8,9,10,11} (2) -- gives 28 - 5 - 4 - 2 = 17. Math not vendor-stated; verify before treating as exact.

Verify my board

Reads the connected chip over USB and checks it against what esp-atlas cites for ESP32-DevKitM-1 — over Web Serial, no backend, nothing leaves your browser.

In-browser verify needs Web Serial: Chrome or Edge on a desktop. Safari, Firefox and phones cannot do it.

Serial monitor

Not connected.