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.
FINGER
Description
FINGER Unit is a fingerprint sensor based on the FPC1020A chipset.
This all-in-one fingerprint sensor makes fingerprint adding, verification and managing super simple.
Operated by the UART protocol, Compact size and ultra-low power consumption makes it very attractive to use around M5Stack series product. it performs fast fingerprint matching with highest security level and optimal user convenience. You can program to set the fingerprint recognition comparison level and different security level . if you ever consider secure your project with biometrics, don't forget to include this M5unit FINGER.
This unit communicate with M5Core by UART protocol connected via PORTC
UART settings:
- Baudrate(default: 19200bps)
- Start bits(1 bit)
- Stop bits(1 bit)
- Parity(no)
Product Features
- Use capacitive area array semiconductor fingerprint sensor
- Each pixel of the sensor has a pixel quality of 256 gray levels
- 1: N recognition and 1: 1 verification function
- Support finger 360 rotation recognition
- Fingerprint comparison and search function
Include
- 1x FINGER Unit
- 1x Grove Cable
Applications
- Fingerprint Attendance Machine
- Fingerprint Locker
Specification
| Resources | Parameter |
|---|---|
| Fingerprint capacity | 150 |
| Security level | 0-9, default 5 |
| Output format | User name, image, feature value |
| Characteristic value size | 193Byte |
| Communication method | UART (9600-115200) |
| Working temperature | -10 °C-60 °C |
| Relative humidity | 20% -80% |
| Net weight | 7g |
| Gross weight | 20g |
| Product Size | 48*24*8mm |
| Package Size | 67*53*12mm |
EasyLoader
EasyLoader is a concise and fast program writer, which has a built-in case program related to the product. It can be burned to the main control by simple steps to perform a series of function verification.
Description:
FINGER UNIT use case: Press the left button to enter the fingerprint input mode. Press the middle button to enter the fingerprint identification mode.
PinMap
| M5Core(GROVE C) | U2RXD | U2TXD | 5V | GND |
|---|---|---|---|---|
| FINGER Unit | TXD | RXD | 5V | GND |
Schematic
Related Link
Protocol FINGER series communication protocol
Datasheet FPC1020A
Learn
Example
Arduino
The code below is incomplete(just for usage). To get the complete code, please click here
UIFlow
Feature Introduction
Identify fingerprint information
get state Read sensor status
get access Return access
get id Return ID
removeAll Remove all fingerprint information
remove id Remove fingerprint ID
add user id access Add ID and access rights
read user with id access The id and permission match do the following
getUnknown Unknown id and permission to perform the following operations
Usage
- FINGER UIflow Video Tutorial
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
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.
COMMON
Q1: Consultation for after-sales problems of products
Describe the problems encountered in detail. Screenshots of the programs involved or files can be added as attachments and sent to M5Stack's official after-sales email
Q2: Code Resources, Cases, User Communication
M5Stack related resource links: Official Github