Adafruit Trinket - Mini Microcontroller - 5V Logic
Deprecated 5V mini microcontroller using bit-bang USB. No longer recommended due to modern USB compatibility issues; Trinket M0 is the current replacement with native USB.
Pinout
- BAT+
Battery or external positive input. Adafruit states BAT+ is the Battery + Input pin for a battery, power adapter, solar panel, or other source, reverse-polarity protected.
Type · powerVoltage · Up to 16V DC; for 3V Trinket use at least 3.5V input, for 5V Trinket 5.5V or higher suggested. - USB+
USB 5V output, present only when Trinket is plugged into the Mini-B USB connector; can be used for USB power sensing or higher-current USB-powered loads.
Type · powerVoltage · 5V from USB, Adafruit notes 500mA+ available from USB ports. - GND
Common ground for logic and power, connected to USB ground and the regulator.
Type · groundVoltage · 0V - GPIO #0 / PB0
Digital input/output; PWM output; I2C data; SPI data input.
Type · gpioVoltage · 5V GPIO output level; Adafruit says it can be used with 3V inputs but may damage 3V-input-only devices. - GPIO #1 / PB1
Digital input/output; PWM output; SPI data output; connected to the onboard LED.
Start wiring
USB · 3.3 V
Confirm the data interface matches your host board.
Module pins: BAT+, USB+, 5V, GND, GPIO #0 / PB0, GPIO #1 / PB1, GPIO #2 / PB2 / A1, GPIO #3 / PB3 / A3. Schematik maps them to your board in the app.
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