ESP32-S2 Human Machine Interface Dev Kit by Espressif
Espressif’s ESP32-S2 Human Machine Interface Dev Kit 1 (ESP32-S2-HMI-DevKit-1) has been specifically designed for human-machine interfaces in smart-home automation controllers, smart speakers with display, smart alarm clocks, etc.
ESP32-S2-HMI-DevKit-1 is powered by the ESP32-S2-WROVER module, which supports a 4.3” LCD screen. The development board can have an optional 1,950mAh rechargeable lithium battery installed. There’s lots of peripheral interfaces such as an extra USB serial programming/UART port, SPI, TWAI, I2C, and an SD card. It supports various sensors and functions such as audio playback and recording. Additionally, this development kit supports rapid secondary development, allowing developers to take advantage of the kit’s various onboard resources and expansion interfaces.
Please note this is an advanced development kit, for use with the ‘raw’ Espressif ESP IDF. For example, there isn’t CircuitPython or Arduino support for the display at this time. We’re stocking this because we think its a great dev board if you want to implement support for this hardware or play with display interfaces and the ESP32-S2
ESP32-S2-HMI-DevKit-1 Specifications:
- Wireless microcontoller module: ESP32-S2-WROVER module with ESP32-S2 Xtensa single-core 32-bit LX7 microprocessor, up to 240 MHz with 128 KB ROM, 320 KB SRAM, WiFi 4 connectivity, 4MB flash, 2MB PSRAM
- Storage: MicroSD card slot
- Display: 4.3” display with 800×480 resolution connected with 16-bit interface plus I2C capacitive touch panel overlay
- Display interface: 16-bit, 20 MHz, 8080 parallel communication
- Audio: Audio amplifier, built-in microphone, speaker connector
- USB: 1x USB-C OTG (DFU/CDC) port, 1x USB-C debug port
- Expansion: SPI header, TWAI (2-wire automotive interface)/CAN header, I2C header, UART/Prog header
- Sensors: 3-axis accelerometer, 3-axis gyroscope, ambient light sensor, temperature and humidity sensors
- Miscellaneous: Programmable RGB LEDs, wakeup and reset buttons, IR transmitter
- Power Supply: 5V and 3.3V power headers
- Optional Rechargeable Battery: 1,950 mAh Li-ion battery cutout and connector
Please note, Espressif is not shipping this product with a battery installed. An off-the-shelf iPhone 5-compatible battery can be purchased and installed by the end user.
Purchase
Contribute
Have some info to add for this board? Edit the source for this page here.
CircuitPython 9.2.8
This is the latest stable release of CircuitPython that will work with the ESP32-S2 Human Machine Interface Dev Kit. Use this release if you are new to CircuitPython.
Modules included in this download
_asyncio _pixelmap adafruit_bus_device adafruit_pixelbuf aesio alarm analogbufio analogio array atexit audiobusio audiocore audioio audiomixer audiomp3 binascii bitbangio bitmaptools board builtins builtins.pow3 busdisplay busio busio.SPI busio.UART canio codeop collections countio digitalio displayio epaperdisplay errno espcamera espidf espnow espulp fontio fourwire framebufferio frequencyio getpass gifio hashlib i2cdisplaybus io ipaddress jpegio json keypad keypad.KeyMatrix keypad.Keys keypad.ShiftRegisterKeys keypad_demux keypad_demux.DemuxKeyMatrix locale math max3421e mdns memorymap microcontroller msgpack neopixel_write nvm onewireio os os.getenv paralleldisplaybus ps2io pulseio pwmio qrio rainbowio random re rgbmatrix rotaryio rtc sdcardio select sharpdisplay socketpool socketpool.socketpool.AF_INET6 ssl storage struct supervisor synthio sys terminalio tilepalettemapper time touchio traceback ulab usb usb_cdc usb_hid usb_midi vectorio warnings watchdog wifi zlibFeatures: Battery Charging, Display, Speaker, USB-C, Wi-Fi
CircuitPython 10.0.0-beta.0
This is the latest development release of CircuitPython that will work with the ESP32-S2 Human Machine Interface Dev Kit.
Alpha development releases are early releases. They are unfinished, are likely to have bugs, and the features they provide may change. Beta releases may have some bugs and unfinished features, but should be suitable for many uses. A Release Candidate (rc) release is considered done and will become the next stable release, assuming no further issues are found.
Please try alpha, beta, and rc releases if you are able. Your testing is invaluable: it helps us uncover and find issues quickly.
Release Notes for 10.0.0-beta.0
Modules included in this download
_asyncio _eve _pixelmap adafruit_bus_device adafruit_pixelbuf aesio alarm analogbufio analogio array atexit audiobusio audiocore audiomixer audiomp3 binascii bitbangio bitmapfilter bitmaptools board builtins builtins.pow3 busdisplay busio busio.SPI busio.UART canio codeop collections countio digitalio displayio epaperdisplay errno espcamera espidf espnow espulp fontio fourwire framebufferio frequencyio getpass gifio hashlib i2cdisplaybus io ipaddress jpegio json keypad keypad.KeyMatrix keypad.Keys keypad.ShiftRegisterKeys keypad_demux keypad_demux.DemuxKeyMatrix locale lvfontio math max3421e mdns memorymap microcontroller msgpack neopixel_write nvm onewireio os os.getenv paralleldisplaybus ps2io pulseio pwmio qrio rainbowio random re rgbmatrix rotaryio rtc sdcardio select sharpdisplay socketpool socketpool.socketpool.AF_INET6 ssl storage struct supervisor synthio sys terminalio tilepalettemapper time touchio traceback ulab usb usb_cdc usb_hid usb_midi vectorio warnings watchdog wifi zlibFeatures: Battery Charging, Display, Speaker, USB-C, Wi-Fi
Absolute Newest
Every time we commit new code to CircuitPython we automatically build binaries for each board and language. The binaries are stored on Amazon S3, organized by board, and then by language. These releases are even newer than the development release listed above. Try them if you want the absolute latest and are feeling daring or want to see if a problem has been fixed.
Previous Versions of CircuitPython
All previous releases of CircuitPython are available for download from Amazon S3 through the button below. For very old releases, look in the OLD/ folder for each board. Release notes for each release are available at GitHub button below.
Older releases are useful for testing if you something appears to be broken in a newer release but used to work, or if you have older code that depends on features only available in an older release. Otherwise we recommend using the latest stable release.
Install, Repair, or Update UF2 Bootloader
Latest version: 0.35.0
The UF2 bootloader allows you to load CircuitPython, MakeCode, and Arduino programs. The bootloader itself is not CircuitPython. On Espressif boards, the UF2 bootloader is called TinyUF2. If the TinyUF2 bootloader is installed, you can check its version by looking in the INFO_UF2.TXT file when the BOOT drive is visible (FTHRS2BOOT, MAGTAGBOOT, HOUSEBOOT, etc.)
In general, it is not necessary to update TinyUF2 at every version change. You can read the release notes on GitHub to see what has been changed. Update if you've been told about a necessary change or a bug fix.
Note: CircuitPython 10 and later, on Espressif boards with 4MB flash, requires TinyUF2 0.33.0 or later. The flash partition layout has changed (details).
If TinyUF2 has never been installed on the board, or it was removed by erasing or overwriting the flash, it must be installed in order to flash .uf2 files onto the board. But you don't need the TinyUF2 bootloader to upload .bin files. They can be uploaded using the built-in ROM bootloader, with the Adafruit WebSerial ESPTool or esptool.py.
Warning: Installing the TinyUF2 bootloader will erase everything that was previously on the board. Save any files in CIRCUITPY for which you don't have backups.
There are several ways to install the TinyUF2 bootloader on your board. Check to see if your board's manufacturer provides specific instructions. For Adafruit boards, consult the Factory Reset page in the Learn Guide for your particular board (example).
The easiest way to install TinyUF2 is to use the OPEN INSTALLER button (see above, in the CiruitPython sections). You can also use the Adafruit WebSerial ESPTool, or esptool.py, as described in the Factory Reset page.
- Plug board into a USB port on your computer using a data/sync cable. Make sure it is the only board plugged in, and that a charge-only cable is not being used.
- Press and hold the BOOT button (sometimes marked "B0").
- Press and release the RESET button (sometimes marked "RST").
- Release the BOOT button. This starts the ROM bootloader.
After installing TinyUF2, enter the UF2 bootloader by double-clicking the RESET button. On boards with an RGB status LED, you usually tap reset once, wait for the LED to turn purple, and tap again before the purple goes away. On other boards, consult the board documentation.
If you are updating TinyUF2, look at INFO_UF2.TXT to verify the new version of TinyUF2, by checking the version number. Then you will need to copy the CircuitPython.uf2 file to the BOOT drive.