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
Tutorial & Quick-Start
Description
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 IoT devices.
1,
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.2,
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.3,
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.4,
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 dual mode)
- Support UIFlow graphical programming
- Multi-IO pinout, support multiple application forms (SMT, DIP, fly-by-wire)
- Integrated programmable RGB LEDs and buttons
- Miniature module
Applications
- Instrumentation
- Wi-Fi Remote Monitoring/Control
- Smart Home
- Color LED Control
- Fire/security intelligent integrated management
- Smart Card Terminal
- Wireless POS
Specification
| Resources | Parameter |
|---|---|
| Master Control Resource | ESP32-PICO-D4 |
| Flash | 4MB |
| 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 |
| Net weight | 2.6g |
| 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) |
Include
- Purchase link
- M5Stamp Pico (5pcs):
- 5 x M5Stamp Pico
- 5 x Sticker
- Purchase link
- M5Stamp Pico Mate:
- 1 x M5Stamp Pico
- 1 x Heat Resistant Sticker
- 2 x 2.54-9P header
- 2 x 2.54-6P header
- 1 x 90° Grove Connector
- 1 x Hex Key
- Purchase link
- M5Stamp Pico DIY Kit:
- 1 x M5Stamp Pico
- 1 x Heat Resistant Sticker
- 2 x 2.54-9P header
- 2 x 2.54-6P header
- 1 x 90° Grove Connector
- 1 x Hex Key
- 1 x ESP32 Downloader
ESP32 Downloader
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 |
|---|---|---|
| CP210x_VCP_Windows | CP2104 | Download |
| CP210x_VCP_MacOS | CP2104 | Download |
| CP210x_VCP_Linux | CP2104 | Download |
| CH9102_VCP_SER_Windows | CH9102 | Download |
| CH9102_VCP_SER_MacOS v1.7 | CH9102 | Download |
PinMap
SK6812 (RGB LED) and Button
| ESP32 | GPIO27 | GPIO39 |
|---|---|---|
| SK6812 | DI | / |
| Button | / | SW |
Schematic
Module size
The shell supports Reflow Profile
Program Download
- STAMP-PICO adopts the most streamlined circuit design, so it does not include the program download circuit, users can download the program through the USB-TTL burner.
Related Link
Datasheet
PCB
Example
Video
FAQ
HARDWARE RELATED
Q1: How do I remove the speaker floor noise when the M5Core is on or running?
Execute the following statement in Setup() of the Arduino program
Q2: How does M5Core2 stack modules?
When M5Core2 is stacked with other M5 modules, you need to remove the battery base of Core2, which does not support module stacking.
Q3: A timeout error is displayed when uploading the program to the device
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
Q4: How to solve the phenomenon of automatic signal triggering of M5Core button A
Add the header file #include <driver/adc.h> and the function adc_power_acquire(); in the Arduino program
Q5: M5 device battery life
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.
Q6: Can multiple modules with batteries be stacked at the same time?
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)
Q7: M5 master supports WiFi connection to 5G frequency band
ESP32 module currently does not support WiFi in 5G band, only 2.4G.
Q8: The RS485 device cannot communicate normally/data is garbled. Packet loss, etc.
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
Q9: The difference between different masters and camera products
Click the link below to view the product comparison table
Q10: M5 camera image blur, how to adjust the focal length
Rotate the lens to adjust the focal length within a certain range
Q11: The control RGB LED pin of FACE II BOTTOM conflicts with the I2S DOUT pin of CORE2
FACE II BOTTOM NOT CORE2 COMPATIBLE
Q12: Does the battery run out of power quickly?
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
SOFTWARE RELATED
Q1: How to read the programmed firmware?
Use esptool to read the flash content of esp32 and export the bin file. Refer to the detailed operation
Q2: Several solutions for esp32 board download failure in Arduino IDE board management
Restart the Arduino IDE, the computer uses the mobile AP mobile network to download.
Q3: Arduino SPIFFS file upload operation
Refer to the Github link below, use arduino-esp32fs-plugin for file upload
Q4: When M5Burner burns firmware, an error pop-up window or exception occurs
Check if the COM of the corresponding device is selected and if the M5Burner is the latest version
Q5: Does the M5 master device support multi-language display (Chinese, English, Japanese, Russian, etc.)?
UIFlow users can switch the Label font to Unicode, Arduino users can use the Chinese font library provided in the M5GFX driver library
Q6: The program cannot load the SD card normally
Confirm whether the SD card format is FAT32, and no partitions exist.
Q7: How to use Bluetooth, HTTP, SD, WebServer, FreeRTOS and other features in Arduino IDE
You can refer to the following link for other ESP32 users to share the case program
Q8: How to download programs for STAMP C3U
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.
Q9: How STAMP C3U defines UART0 output mode
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.)
Q10: Unable to connect to UIFlow Desktop IDE
Refer to the UIFlow documentation of the corresponding device to check whether the device has entered the USB programming mode.
Q11: NBIoT devices cannot connect to the network normally
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)