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The Adafruit ESP32-S3 Feather represents an improve to ESP32-based microcontrollers within the common Feather kind issue. This new ESP32 chip is a dual-core design operating at 240 MHz. It has built-in assist for Wi-Fi and BLE. For comparability, the ESP32-S2 was single-core and didn’t assist BLE. Each chips have native USB assist, making it simple to run CircuitPython or emulate enter units. The ESP32-S3 has 512KB of SRAM. The model we examined has a further 2 MB of slower PSRAM and 4 MB of flash reminiscence. A earlier model of this product, nonetheless out there, had no PSRAM and eight MB of flash reminiscence.
The ESP32-S3 Feather has all of the options we might count on from an entry within the Feather ecosystem. There’s a LiPoly battery connector that feeds to a battery monitor and cost controller. A linked LiPoly battery will cost at any time when the Feather is powered through its USB-C port. There’s a STEMMA QT port for including I2C-based peripherals. The STEMMA QT is a four-pin port that delivers energy and the I2C bus to sensors and actuators appropriate with STEMMA QT or Sparkfun’s QWIIC system. Appropriate cables and batteries can be found as add-ons to your Adafruit order.
LiPoly plug for transportable energy
There are twenty GPIO pins damaged out on the feather. Pins assignments on the ESP32-S3 are very versatile. Six of the pins on the feather are marked as analog inputs, however in reality fifteen of the pins are able to accepting analog inputs. The pins marked for SPI bus, I2C bus, and UART can all be used for GPIO. Many of the GPIO pins can be utilized for PWM, I2S, I2C, SPI, or UART in case you want them. The on-board NeoPixel LED connects to its personal microcontroller pins and doesn’t duplicate any pins which are damaged out. Observe that each one I/O on Feather platforms is at 3.3V.
To check this board we began by putting in the most recent model of CircuitPython, following the information from Adafruit. Merely double-clicking the reset button on the board causes it to mount as a USB mass storage gadget known as FTHRS3BOOT. You’ll be able to then obtain the most recent CircuitPython firmware for this board and drag-and-drop it to put in on the board. Observe that the hyperlink within the information is for the no PSRAM / 8MB flash model of the board and won’t work with the mannequin we examined. Both observe our hyperlink above or navigate the CircuitPython web site to search out the best model of the firmware. You’ll know the firmware has efficiently put in when the board reboots and remounts with the identify CIRCUITPY. Adafruit then guides you thru putting in and utilizing the Mu editor for interacting with the board. You may also drag and drop libraries and code onto the CIRCUITPY drive to execute them. As a result of the board has the usual pink built-in LED you may obtain and drop the blink instance onto the board for that first-program expertise.
Program Python and supply energy over USB-C
Your different programming possibility is the Arduino IDE. Help for this model of the Feather seems underneath the identify “Adafruit Feather ESP32-S3 2MB PSRAM” in model 2.0.4 of the ESP32 board assist module. Sadly, the code is damaged and received’t compile. Espressif is conscious of the errors and has focused them for fixing in 2.0.5. Within the meantime you may observe Espressif’s directions for putting in the most recent board assist direct from their Github repository. You could or could not discover the most recent code to be in a usable state.For a non-programming possibility, you should utilize Adafruit’s WipperSnapper firmware with the Adafruit.IO web site to regulate your board by means of the cloud. This service is taken into account “in Beta” however is fairly simple to make use of. Begin at Adafruit.IO to make an account and add a “new gadget.” It offers you a walkthrough to put in the firmware, which is way the identical as putting in CircuitPython. After getting set your native WiFi settings on the board you’ll have the ability to management it from the cloud.
ESP32-S3 guarantees potent efficiency over S2 predecessor
All in all, this iteration of the ESP32 on Feather has quite a lot of potential. As soon as the board assist points are resolved, it’s going to merely be a extra highly effective model of boards Adafruit has launched previously.
Standout options:
Newest ESP32 chip is extra highly effective than its predecessorFeatures Wi-Fi and BLENative USB assist makes CircuitPython simple to put in
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