ESP32-PICO-D4 Espressif Systems ESP32 PICO Module


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Manufacturer: Espressif Systems

Stock Status: In stock

Delivery: Ships same or next business day
Free shipping to the US on orders over $100
Closeout: Limited quantity available.
NOT recommended for new designs

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Product Information

Product Description

This product is NOT for new designs.

Order quantity is limited to in-stock amounts. 

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The extremely small ESP32-PICO-D4 SiP module provides complete Wi-Fi and Bluetooth capabilities. It has seamless integration of all peripheral components, including a 40 MHz crystal oscillator, 4-MB SPI flash, filter capacitors, and RF matching links. Utilizing the ESP32 chip, the module has TSMC’s 40 nm ultra-low power technology. 

With the ESP32-PICO-D4 small size, (7.0 ± 0.1)mm x (7.0 ± 0.1)mm x (0.94 ± 0.1)mm, minimal PCB area is required. Add in its low-energy consumption and robust performance, this module is ideal for the following limited space or battery operated applications such as the following:

  • Medical equipment 
  • Wearable electronics
  • Sensors
  • IoT products


  • Extremely small size: (7.0 ± 0.1)mm x (7.0 ± 0.1)mm x (0.94 ± 0.1)mm
  • Wi-Fi and Bluetooth capabilities
  • Seamless integration of all peripheral components
  • 40 MHz crystal oscillator
  • 4-MB SPI flash
  • Filter capacitors
  • RF matching links
  • TSMC’s 40 nm ultra-low power technology
  • Requires minimal PCB area

Documents and Drivers


ESP32-PICO-D4 Datasheet

ESP32 Datasheet

ESP32 Technical Reference Manual



Flash Download Tools



  • Operating Average: 80 mA
  • Minimum current delivered by power supply: 500mA


7.000±0.100 mm × 7.000±0.100 mm × 0.940±0.100 mm

Flash Memory

Integrated SPI flash: 4 MB

Frequency Band

Wi-Fi: 2.4 ~ 2.5 GHz


  • ADC
  • DAC
  • touch sensor
  • SD/SDIO/MMC Host Controller
  • SPI
  • SDIO/SPI Slave Controller
  • EMAC
  • motor PWM
  • UART
  • I2C
  • I2S
  • infrared remote controller
  • GPIO
  • pulse counter


Bluetooth Audio: CVSD and SBC

Power Supply

2.7 V - 3.6 V

Power Supply

  • Wi-Fi: 802.11 b/g/n (802.11n up to 150 Mbps)
  • Wi-Fi: A-MPDU and A-MSDU aggregation and 0.4 s guard interval support
  • Bluetooth V4.2 BR/EDR and BLE specification

Radio Channels/Bandwidth

  • Bluetooth: NZIF receiver with –97 dBm sensitivity
  • Bluetooth: Class-1, class-2 and class-3 transmitter
  • Bluetooth: AFH


On-chip Hall sensor

Temperature Range

-40°C to +85°C (-40°F to +185°F)

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