Current Product Don't Have Test Firmware
Note: pls, use PC chrome/edge browser, if can't connect, refresh the webpage.
1. Click connect button
2. After connected successfully, pick a firmware
3. Click the burn button
4. After burning successfully, Unplug the device and restart.
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. low power consumption.
It is ideal for any space-constrained or battery-powered devices such as wearables, medical devices, sensors, and other
MULTIFORM: 5 options of installation, means endless possibilities! (SMT, DIP, fly wire, 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 port, GPIOx12, programmable RGB light 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.
|Master Control Resource||ESP32-PICO-D4|
|Input Voltage||5V @ 500mA|
|Power consumption||Normal standby:5V@29mA, WIFI STA mode: 5V@60mA, BT mode data sending status: 5V@84mA, Deep-sleep mode: 5V@0.35mA|
|Wireless communication distance||AP Mode: 16m|
|UI||Programmable physical keys x 1, Programmable RGB LED (SK6812) x 1|
|Antenna Type||2.4G 3D Antenna|
|Wi-Fi||802.11 b/g/n (up to 150 Mbps for 802.11n), spectrum range: 2.4 GHz ~ 2.5 GHz|
|Module Resource Interface||ADC, DAC, touch sensor, SD/SDIO/MMC host controller, SPI, SDIO/SPI slave controller, EMAC, motor PWM, LED PWM, UART, I2C, I2S, IR remote controller, GPIO, pulse counter|
|IO interface x12||G0, G1, G3, G26, G36, G18, G19, G21, G22, G25, G32, G33|
|IO interface spacing||2.54mm|
|perating temperature||0°C to 60°C|
|M5Stamp Pico (5pcs) Gross weight||18g|
|M5Stamp Pico Mate Gross weight||6g|
|M5Stamp Pico DIY Kit Gross weight||12g|
|Fixing screw specifications||M2*4 countersunk head hexagon socket mechanical teeth|
|Product Dimensions||18 * 24 * 4.6mm|
|Package Size||85*55mm sealing bag (translucent)|
Before burning, you need to connect a USB-TTL burning board for STAMP-PICO, and proceed according to the board silkscreen connect. Install the driver corresponding to the burning board on the PC.
The most convenient way is to
Purchase the STAMP-PICO package version with downloader
, the line sequence of the matching downloader It is consistent with STAMP-PICO, it can be directly plugged in for programming without wiring. Currently M5 provides downloaders of two driver chip versions, CP210X (applicable to
CP2104 version)/CP34X (applicable to
CH9102 version) driver compressed package. After decompressing the compressed package, select the installation corresponding to the number of operating systems Package to install. (If you are not sure which USB chip your device uses, you can install two drivers at the same time)
|Driver name||Applicable driver chip||Download link|
SK6812 (RGB LED) and Button
Execute the following statement in Setup() of the Arduino program
When M5Core2 is stacked with other M5 modules, you need to remove the battery base of Core2, which does not support module stacking.
Reason and solution: The power supply current of the port is insufficient, which can cause the device to not enter the download mode normally. You can try to connect a capacitor (>0.1uF) between the RST pin and the GND pin, or when uploading the program, set the G0 Short-circuit to GND, so that G0 can be set to a low level state normally
Add the header file #include <driver/adc.h> and the function adc_power_acquire(); in the Arduino program
The battery life of the controller is affected by various factors such as battery capacity, operating status, and load, so there is no fixed value. Reducing the load and adopting a sleep strategy can effectively increase the battery life.
Support multiple stacks, the total capacity of the batteries in parallel increases, and the voltage remains unchanged. However, since the discharge of each battery is not balanced during use, there is a voltage difference between the batteries, which may cause the battery to charge backwards. .(will lose part of the battery capacity)
ESP32 module currently does not support WiFi in 5G band, only 2.4G.
Confirm whether the TX/RX pin on the TTL side of the pin is correct, try to add two 120Ω terminal resistors at the beginning and end of the device line to reduce signal reflection interference
Click the link below to view the product comparison table
Rotate the lens to adjust the focal length within a certain range
FACE II BOTTOM NOT CORE2 COMPATIBLE
Built-in CR1220 button battery, can make it work for a long time, if the battery power is exhausted, open the Unit shell to replace the battery
Use esptool to read the flash content of esp32 and export the bin file. Refer to the detailed operation
Restart the Arduino IDE, the computer uses the mobile AP mobile network to download.
Refer to the Github link below, use arduino-esp32fs-plugin for file upload
Check if the COM of the corresponding device is selected and if the M5Burner is the latest version
UIFlow users can switch the Label font to Unicode, Arduino users can use the Chinese font library provided in the M5GFX driver library
Confirm whether the SD card format is FAT32, and no partitions exist.
You can refer to the following link for other ESP32 users to share the case program
STAMP C3U enters program download mode operation: 1. Long press the center button (G9) of STAMP C3U when the power is off. 2. Connect to the computer, after the port is successfully identified, program burning.
By default, USB CDC is not enabled, the serial port output started by C3U will be output through the default pins (G20, G21) of UART0. If you want to output through USB, please use the IDE to output Its USB CDC option is enabled. (Arduino users can enable it through Tools->USB CDC on Boot-Enabled. For IDF users, please refer to the ESP IDF official documentation.)
Refer to the UIFlow documentation of the corresponding device to check whether the device has entered the USB programming mode.
Make sure that the NBIoT used is not locked. Frequent device replacement or after activating the IoT card, using traffic in different places may cause the card to be locked. If the above situation occurs, please contact the IoT card supplier. If you are using the IoT card matching M5, please contact M5 after-sales through e-commerce or email. (provide the ICCID of the IoT card)