Need help?Do you have a question about the Adafruit Feather M4 Express and is the answer not in the manual?
Explains the function of GND, BAT, USB, EN, and 3V pins for power management.
Introduces general purpose I/O pins and 3.3V logic for microcontroller interaction.
Presents different header soldering options for breadboard and FeatherWing compatibility.
Details the two primary ways to power the Feather: MicroUSB and LiPo battery.
Shows how to fade an LED using PWM with a fixed frequency.
Guides on verifying sensor wiring and detecting it on the I2C bus.
Details how to log CPU temperature to a file by connecting a pin to ground.
Describes the process of entering bootloader mode by double-tapping the reset button.
General| Microcontroller | ATSAMD51J19 |
|---|---|
| Clock Speed | 120 MHz |
| Flash Memory | 512 KB |
| SRAM | 192 KB |
| Digital I/O Pins | 20 |
| Analog Input Pins | 6 |
| Analog Output Pins | 1 |
| I2C | Yes |
| SPI | Yes |
| Operating Voltage | 3.3V |
| Power Supply | USB or LiPo battery |
| Serial | Yes |
| USB | Native USB |
| Dimensions | 51mm x 23mm |
To Next Page
