Summary of M5STACK’S NEW COST-EFFECTIVE ‘PLUG-AND-PLAY’ ESP32 MINIATURE MODULE – STAMP PICO
STAMP PICO is an ultra-compact ESP32-PICO-D4 based module with dual-core Xtensa LX6 processors at 240MHz, designed for space-constrained and battery-powered IoT devices. It supports multiple installation styles (SMT, DIP, flywire, Grove), UIFlow graphical programming, and is compatible with Arduino, MicroPython, and ESP32-IDF. The module integrates 5V→3.3V DC/DC, 12 GPIOs, a programmable RGB LED, a button, and a tuned RF circuit, and offers strong expandability within the M5Stack ecosystem.
Parts used in the STAMP PICO:
- ESP32-PICO-D4 chipset (2.4GHz Wi-Fi and Bluetooth dual mode)
- Two Xtensa 32-bit LX6 microprocessors at 240MHz (integrated in ESP32-PICO-D4)
- On-board 5V to 3.3V DC/DC converter
- GPIO pins x12
- Programmable RGB LED x1
- Button x1
- Finely tuned RF circuit
- High-temperature resistant plastic shell (optional accessory)
- 3D antenna (protected by shell)
- Grove interface (installation option)
STAMP PICO features an ultra-compact design with two low-power Xtensa® 32-bit LX6 microprocessors at 240MHz on a PCB as tiny and delicate as a postage stamp.

It is ideal for any space-constrained or battery-powered devices such as wearables, home automation, smart sensors, and other IoT devices.
- MULTIPLE STYLE: 5 options of installation, means endless possibilities! (SMT, DIP, flywire, Grove interface), with a high-temperature resistant plastic shell, 3D antenna and components can be better protected.
- LOW-CODE DEVELOPMENT: STAMP PICO supports UIFlow graphical programming platform, scripting-free, cloud push; and fully compatible with Arduino, MicroPython, ESP32-IDF, and other mainstream development platforms to quickly build various applications.
- HIGH INTEGRATION: STAMP PICO contains 5V->3.3V DC/DC design, GPIOx12, programmable RGB LED x1, button x1, finely tuned RF circuit, providing stable and reliable wireless communication.
- STRONG EXPANDABILITY: Easy access to M5Stack’s hardware and software ecology system: a wealth of sensors, actuators, functional modules, and accessories to choose from, Extremely fast adaptation.
Product Features
- Chip-set: ESP32-PICO-D4 (2.4GHz Wi-Fi and Bluetooth dual mode)
- Support UIFlow graphical programming
- Support multiple installation style (SMT, DIP, fly-by-wire)
- Integrated programmable RGB LED and button
- Miniature in size
Read more: M5STACK’S NEW COST-EFFECTIVE ‘PLUG-AND-PLAY’ ESP32 MINIATURE MODULE – STAMP PICO
- What chipset does STAMP PICO use?
STAMP PICO uses the ESP32-PICO-D4 chipset supporting 2.4GHz Wi-Fi and Bluetooth dual mode. - Can STAMP PICO be programmed without scripting?
Yes, it supports the UIFlow graphical programming platform for scripting-free development. - Does STAMP PICO support Arduino and MicroPython?
Yes, it is fully compatible with Arduino, MicroPython, ESP32-IDF, and other mainstream platforms. - What installation styles are available for STAMP PICO?
STAMP PICO supports multiple installation styles including SMT, DIP, fly-by-wire, and Grove interface. - What integrated power design does STAMP PICO have?
STAMP PICO contains a 5V to 3.3V DC/DC design. - How many GPIOs does STAMP PICO provide?
STAMP PICO provides 12 GPIO pins. - Does STAMP PICO include any LEDs or buttons?
Yes, it includes one programmable RGB LED and one button. - Is STAMP PICO suitable for wearable and battery-powered devices?
Yes, its ultra-compact and low-power design makes it ideal for wearables, smart sensors, home automation, and other battery-powered IoT devices. - Can STAMP PICO access M5Stack hardware and software ecosystem?
Yes, it offers easy access to M5Stack's ecosystem of sensors, actuators, modules, and accessories.