ESP32-PICO-D4 Development Board

The ESP32-PICO-KIT is a small Espressif development board with Wi-Fi and Bluetooth, here under the DFRobot number DFR0625. Its core is the ESP32-PICO-D4, a system-in-package with ESP32, 4 MB flash and 40 MHz crystal in one housing. A USB-to-serial converter connects the board to the computer via micro USB, programming is done with Arduino, MicroPython or ESP-IDF.

The DFRobot page for DFR0625 now describes the successor board ESP32-PICO-KIT-1 with ESP32-PICO-V3 (47 × 20.3 × 10 mm). The marking on the chip shows which version is present.

Recommended Accessories:

• 1m Quality Micro USB Cable white
• Breadboard / Hole Grid Plug-In Board Half-Size
• Dupont Jumper Cable Set 20cm 60 Pieces.

Features:

• Fits on a breadboard, pin headers 2 × 17 pins fitted
• Buttons EN (reset) and BOOT: holding BOOT and briefly pressing EN starts the download mode
• USB-to-serial converter CP2102 (board V4) or CP2102N (board V4.1), depending on the system the driver is needed
• Supply either via micro USB, via the 5V/GND pins or via 3V3/GND, always connect only one source (Espressif)
• Red LED indicates the supply
• Logic level 3.3 V, the pins do not tolerate 5 V
• Arduino IDE: install the esp32 board package from Espressif, instructions at Espressif

Application Examples:

• Small IoT devices with Wi-Fi and Bluetooth
• Sensor nodes on the breadboard
• Wearable electronics and space-critical applications

Documentation:

• ESP32-PICO-KIT user guide (Espressif)
• Schematic ESP32-PICO-KIT V4.1 (PDF)
• Datasheet ESP32-PICO-D4 (PDF)
• Installing ESP32 in the Arduino IDE (Espressif)
• CP210x USB-UART driver (Silicon Labs)

Technical Data:

• Manufacturer: Espressif, DFRobot SKU: DFR0625
• Module: ESP32-PICO-D4 (system-in-package)
• Processor: ESP32 dual-core
• Flash: 4 MB
• SRAM: 520 kB
• Wi-Fi: IEEE 802.11 b/g/n, 2.4 GHz
• Bluetooth: 4.2 BR/EDR and BLE
• Antenna: on the board
• Supply: 5 V via micro USB
• Logic level: 3.3 V
• Average operating current: 80 mA, power supply at least 500 mA (DFRobot)
• Interfaces: UART, GPIO, ADC, DAC, SDIO, PWM, I2C, I2S, touch
• Operating temperature: -40 to 85 °C
• Dimensions: 52 × 20.3 × 10 mm
• Weight: 10.5 g

Scope of Delivery:

• 1× ESP32-PICO-D4 development board