Adafruit Trinket M0 SAMD51 Microcontroller Board Products

Created: 12Sep2024 02:55:32 UTC 2024-09-12T02:55:32Z
Updated: 17Sep2024 07:26:20 UTC 2024-09-17T07:26:20Z

Description

The Adafruit Tinket M0 microcontroller board breaks out the SAMD21 MCUMicrocontroller Unit on a small sized board (1.07in x 0.6in). The board includes a Micro-B USB connector for power and programming, reset button, and programmable LEDLight Emitting Diodes.

Processor

ATSAMD21E18 32-bit 48MHz Cortex M0+

Memory

256KB Flash
32KB SRAMStatic Random Access Memory

I/OInput/Output

1x Micro-B USB connector (USB 2.0 Host or Device Full/Low speed)
5x Digital I/OInput/Output with PWMPulse-Width Modulation (3.3V Logic)
5x Analog Inputs 12-bit ADCAnalog-to-Digital Converter (ADC, A/D, or A-to-D) (0V to 3.3V range)
Communication interfaces (3.3V Logic): 1x UARTUniversal Asynchronous Receiver-Transmitter, 1x I2CInter-Integrated Circuit. Also referred to as IIC or I²C. (STEMMA QT connector), 1x SPISerial Peripheral Interface, and 1x I2SInter-IC Sound.
1x SWDSerial Wire Debug solder pads on the back of the board

User Interface

1x Reset Button
1x Green Power LED (labeled On)
1x Pin #13 Red LED (labeled 13) that pulses when in bootloader mode
1x Programmable DotStar RGBRed Green Blue LED

Power

The board can be powered by the Micro-B USB connector. There are also a few power related pins.

BAT input pin that you can connect a battery or other external source to power the Trinket. It has a Schottky protection diode so it is completely separate from the USB power input/output. You can put 3V to 6V into this pin and it will be regulated down by the 3V regulator.
USB output pin is the 5V VBUS voltage from the USB port.
3V output pin is the regulated output from the onboard regulator that provides up to 500mA.
Gnd is the common/ground/0V reference.
+ - are two solder pads on the back of the board that you can optionally solder on a 2-Pin JST PH connector to power the board from an external battery. The connector is also tied to the BAT pin on the headers but it's convenient to just plug in a cable. The pads can take up 6V DC input, and has reverse-polarity, over-current and thermal protections. The circuitry inside will use either the battery or USB power, safely switching from one to the other.

Board Size