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Teensy 2++ as spi programmer10/20/2023 ![]() ![]() ![]() ![]() Teensylu clone, Atmel's AT90USB1286 - AT90USB1287 drop-in compatible for 20mhz support.Small design - board is 100mm x 60mm (4" x 2.4").All extra I/O ports of the AT90USB have been broken out to headers for prototyping. Like the Sanguinololu the Teensylu has expansion headers supporting I2C, SPI, UART, and ADC pins. All of the through hole resistors and capacitors have been replaced with 0805 SMT components (as of Ver 0.1). This Microcontroller has on-chip USB, removing the need for the FTDI USB UART. The ATmega644P has been replaced with an Atmel AT90USB1286 MCU. This is a project that is based on Sanguinololu.
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